CUTwC Logos

These logos are available for CUTwC-related content: publicity, merchandise, anything not bringing the Club into disrepute.

It is the experience of the web site maintainer that the idea of having something with a Club Logo on it tends to happen when there is not a convenient time to create one. This page is intended to be a central repository so that we have these designs in a suitable range of variations available in advance.

Technically, there is not really an "official CUTwC logo"; alternatives exist if you wish to consider them.

In most cases, follow the link of the image to access a download.
Very large or very small images are linked by text.

The text logo should be used where the name "CUTwC" is significant and where the association with tiddlywinks is non-obvious (where a more abstract logo would be meaningless). Used inline in text, the height of the text in the logo should match the height of capital lettering in the surrounding font. The logo should not be used below the size where the lettering can be distinguished; the "16px" height used in the inline colour logo on the home page is probably near the limit. For smaller text height consider the "CUTWC" wink text, below. The colour version of both is obviously preferred, since it makes the wink stand out and contains the Cambridge Blue reference.

CUTwC text logo
CUTwC monochrome text logo
CUTwC monochrome borderless text logo

The "Tw" abbreviation may be useful as a narrower marker to complement the full name. It is probably too abstract to be used without the "CUTwC" logo providing context, but unlike the other designs it is clearly derived from the full "CUTwC" version.

Squarer CUTwC 'Tw' text logo
Squarer CUTwC 'Tw' monochrome text logo
Squarer CUTwC 'Tw' borderless monochrome text logo

The Pot-of-Winks (2020-2021)

The "pot made of winks" logo is more abstract, relies on colour, and particularly only has a CUTwC connection if combined with a Cambridge Blue glow — the "realistic" version is also pixel art and therefore doesn't scale arbitrarily (and high-resolution versions are large files; file sizes are shown in parentheses for this design). Despite this, it conveniently doubles as a "layered" image which gives it a mild visual pun for the home page link of the web site, and it's a more convenient logo shape than some alternatives; it's also got enough detail for interest viewed large, but enough distinct about the shape that it's identifiable at very small scale (making it work as a favicon). Note that, although the colours are a little dark because it's self-shadowing, lightening them quickly makes them look unrealistic; the current version is probably the best balance, after some experimentation. So long as full colour is available, it's a recommended option in situations where an abstract logo is appropriate. POVRay source for the colour and grey versions is available.

The nature of the design means that different variants will be suitable for different uses. Please use a minimum of 16×16 pixels (preferably 24×24) or 1cm height (whichever is larger) to retain visible detail unless the image is used to complement/echo a larger version of the logo (e.g. as custom bullet points where a larger logo on the same page makes it clear what the small image is supposed to be).

Bitmap: glow as part of the image

The most basic approach: the Cambridge Blue glow in this case uses transparency in the image to allow the glow to fade into the background; this approach will not work for all situations, but is probably the most flexible (without knowing how the image is to be reproduced, it's about the best we can do, and generating a solid version on a specified background colour is fairly trivial from this starting point). The pixel art nature means that the file size varies depending on the amount of detail desired, with small files being pixellated/blurry when enlarged, and detailed versions producing large files. To avoid unnecessarily large files (and slow downloads or increased demands on computing/storage), please pick a suitable resolution — the web site navigation adaptively uses the 95×95 or 48×48 versions, for example.

Other resolutions are available as favicons for the web site, derived from the 4800×4800 version:

12² 16² 20² 24² 32² 36² 57² 60² 64² 70² 72² 76² 96² 114² 120² 128² 144² 150² 152² 180² 192² 256² 310²

Some places one might want to reproduce the logo use processes that may be incompatible with transparency — notably on T-shirts, drinking receptacles, etc. The following versions are variants of the 4800×4800 image with the glow effect reproduced as a half-tone pattern, which should work better in these situations (the fine half-tone for larger reproductions, the coarse half-tone for smaller ones). The assumption is that high resolution is suitable for print jobs, so smaller versions are not provided.

Bitmap: glow as post-process

In some cases for web use, it can be more helpful to apply the glow as a CSS post-process effect; this allows better overlapping with other object, for example. Safari, in particular, seems prone to clipping the edges of the effect, so it's a bit fragile compared with integrating it in the image. Here, then, are plain images without the glow — to which the glow can then be applied in CSS. Without the glow, the "Cambridge" connection disappears; the glow is considered part of the logo, so these aren't intended to be used "naked". The glow can be relatively slightly larger with smaller images to increase visibility (not used for the image-only version where there is less risk of overlap with other objects hiding the glow). Again, please pick a suitable resolution to manage file size.

These use a Cambridge Blue drop shadow (tripled for density):
filter:drop-shadow(0px 0px npx rgb(163,193,173)) × 3, where n is shown below.

Icon-sized pot-of-winks (glow as styling)
80×80 (8.4KB)
WebP (3.9KB)
40×40 (3.7KB)
Pot-of-winks (glow as styling)
400×400 (60KB)
WebP (24KB)
4096×4096 (4.8MB)
WebP (477KB)
Icon-sized grey pot-of-winks (glow as styling)
80×80 (4.7KB)
WebP (3.3KB)
40×40 (2.2KB)
Grey pot-of-winks (glow as styling)
400×400 (50KB)
WebP (15KB)
4096×4096 (2.9MB)
WebP (438KB)

Vector approximation

The bitmap art version is more "physically accurate" (it's ray traced), the higher-resolution files are large, and (eventually) pixellated. Where this is an issue, there is a (moderately) realistic hand-drawn approximation in SVG (vector) form; this will avoid going "blocky" like the bitmapped versions at larger sizes. However, the highlights in particular are inaccurate (visibly more diffuse, and the left of the yellow especially less bright); it was enough effort to get this far and I've given up editing it (for now) — so, unlike most artwork, the guidance is to use one of the bitmap versions unless you absolutely need this.

Note that the the edges of the SVG glow effect are a bit rough, especially at larger sizes, due to calculation accuracy in the SVG renderer — this is more visible on some backgrounds than others.

Pot-of-winks vector art (with integrated glow)
SVG glow (55KB)
Pot-of-winks vector art (with integrated glow) at icon size
Same (shown icon sized)

To mitigate issues with the SVG glow effect, there is a version without it, instead using CSS drop shadow to apply the glow as described in the previous section.

Pot-of-winks vector art (glow as styling)
CSS glow (48KB)
Pot-of-winks vector art at icon size (glow as styling)
Same (shown icon sized)

Colour-reduced versions

While the pot of winks works best as a "realistic" image, not all printing processes support a full range of colours. In some cases one of the alternative logos would be a better option, but for consistency of branding, simplified forms are available. Note that, without the colours drawing the connection to winks, the polite objects that the monochrome ones resemble are some designs of bottle stopper, and they resemble... some other objects... as well, so please think carefully before using them and ensure that the context is obvious.

Pot-of-winks: solid colours
Solid colours
e.g. stickers
Pot-of-winks: separated colours
Separated colours
e.g. embroidery/enamel
Pot-of-winks: separated colours/text border
+ text ring,
Pot-of-winks: separated colours/text border
+ text ring,
Pot-of-winks: monochrome, dark background
Mono, light
Pot-of-winks: monochrome, light background
Mono, dark

"CUTWC" wink text (2021)

The "CUTwC text logo" above has sensible-looking lettering, a clear tiddlywink, and a little bit of a visual pun in the pot effect — it works as a stand-alone design. However, for plain text uses, it is a little tall, and this can be inconvenient; it is also "a logo" of itself, which is distracting as an adjuct to other designs where lettering (with some mild branding) is more important — such as adding a reference to the name of the Club to the Pot-of-Winks or Pot Rampant.

For situations that require wider, plainer wording (such as banners), there is an alternative design based on circles (hence a tenuous tiddlywinks connection); apparently Bauhaus/geometric designs are popular at the moment, too. The coloured version "works" only at larger sizes (like a banner) — it is too visually "busy" otherwise, but adds some visual interest at scale (like graffiti). Other versions work acceptably as text alongside a logo, since their design is more clearly textual and less graphical. Please ensure sufficient contrast (which will depend on size) for the solid logo. Consider the mono logo where an extremely short logo is needed (including inlining a logo in text with a small font), since it is distinguishable at smaller vertical sizes than the pot-of-winks or CUTwC text logos.

CUTWC circles: colours
CUTWC circles: filled Cambridge Blue
CUTWC circles: monochrome
CUTWC circles: solid
CUTWC circles: mono
CUTWC circles: mono

It has come to the web site maintainer's attention that embedded images in emails don't work as well as you'd hope, which is a pain if you want a logo in a signature. However, there's a chance that some basic CSS styling will. To that end, here's approximately the same logo described in CSS border terms (sadly the sizes have to be chosen to be integer pixels, or rounding errors make the result inconsistent, so it's a little larger than ideal):

The source for that, should you wish to past it into an email program, is:

<style>.cutwclogo_container {position:relative;border-color:#A3C1AD;width:170px;height:32px;display:inline-block;} .cutwclogo_c1 {position:absolute;width:0px;height:0px;border:16px solid;border-color:inherit;border-right-color:transparent;border-radius:16px;left:0px;top:0px;} .cutwclogo_u1 {position:absolute;width:0px;height:0px;border:solid;border-color:inherit;border-width:0 16px 14px 16px;border-bottom-left-radius:16px 14px;border-bottom-right-radius:16px 14px;left:31px;top:18px;} .cutwclogo_u2 {position:absolute;width:0px;height:0px;border:solid;border-color:inherit;border-width:9px 7px 9px 7px;left:31px;top:0px;} .cutwclogo_t1 {position:absolute;width:0px;height:0px;border:solid 7px;border-color:inherit;left:49px;top:0px;} .cutwclogo_t2 {position:absolute;width:0px;height:0px;border:solid;border-color:inherit;border-width:16px 7px 16px 7px;left:67px;top:0px;} .cutwclogo_t3 {position:absolute;width:0px;height:0px;border:solid 7px;border-color:inherit;left:85px;top:0px;} .cutwclogo_w1 {position:absolute;width:0px;height:0px;border:solid;border-color:inherit;border-width:0 16px 14px 16px;border-bottom-left-radius:16px 14px;border-bottom-right-radius:16px 14px;left:85px;top:18px;} .cutwclogo_w2 {position:absolute;width:0px;height:0px;border:solid;border-color:inherit;border-width:0 16px 14px 16px;border-bottom-left-radius:16px 14px;border-bottom-right-radius:16px 14px;left:103px;top:18px;} .cutwclogo_w3 {position:absolute;width:0px;height:0px;border:solid;border-width:9px 7px 9px 7px;border-color:inherit;left:103px;top:0px;} .cutwclogo_w4 {position:absolute;width:0px;height:0px;border:solid;border-width:9px 7px 9px 7px;border-color:inherit;left:121px;top:0px;} .cutwclogo_c2 {position:absolute;width:0px;height:0px;border:16px solid;border-color:inherit;border-right-color:transparent;border-radius:16px;left:139px;top:0px;} </style><span class="cutwclogo_container"><span class="cutwclogo_c1"></span><span class="cutwclogo_u1"></span><span class="cutwclogo_u2"></span><span class="cutwclogo_t1"></span><span class="cutwclogo_t2"></span><span class="cutwclogo_t3"></span><span class="cutwclogo_w1"></span><span class="cutwclogo_w2"></span><span class="cutwclogo_w3"></span><span class="cutwclogo_w4"></span><span class="cutwclogo_c2"></span></span>

(Change the "#A3C1AD" to "black" or "white" if you need a monochrome version.)

The Pot Rampant (1980s)

The Pot Rampant has been used as a logo since the 1980s. This was reconsidered relatively recently on the basis that it's not clearly associated with Cambridge and also doesn't scale either up (in terms of being simplistic) or down (in terms of retaining distinguishable features: Tiny Pot Rampant — c.f. Tiny Pot-of-Winks) particularly well. It remains appropriate in historical references.

The Pot Rampant (colour)
The Pot Rampant (grey)
The Pot Rampant (monochrome)
The Pot Rampant (monochrome dark background)

These logos date back to CUTwC events in the 1960s (notably ties and early Winkings World), and remain appropriate in reference to historical events. They presumably refer more to the excitement surrounding new-fangled nuclear energy than to the actual shape of a pot at the time. Unfortunately they scale to small sizes very badly (e.g. Tiny filled atomic logo and Tiny solid orbit atomic logo).

'Atomic' CUTwC logo (filled)
'Atomic' CUTwC logo (filled orbits)
Solid orbits
'Atomic' CUTwC logo (outline orbits)
Outline orbits
'Atomic' CUTwC logo (2-colour)
'Atomic' CUTwC logo (3-colour)

Background mat

The CUTwC site background is provided in case it's useful for presentations, slides, etc. The dark mode of the web site uses CSS to darken the light version, which saves space and cache (it avoids a reload when the site colours are changed), but a manually-generated dark version is provided here where that is not an option.

Pale background mat
Pale mat (4.5KB)
Dark background mat (CSS)
Dark mat (CSS)
Explicit dark background mat
Explicit dark mat (11KB)

For historical interest: This background is arranged to tile in both dimensions by using the coordinates to trace loops in four-dimensional space as an input to a Perlin noise function (with different scales in different dimensions to represent the way a mat is squashed when it is rolled up). The plane was shaded by rendering it on custom ray tracing hardware in the 1990s (possibly the noise function actually perturbed a normal and some lighting was applied, I've forgotten), and then "hairs" were drawn on manually and the result heavily compressed. It's also been tweaked a couple of times to better represent the colour of an actual felt winks mat. Needless to say, it is heavily over-engineered even by the standards of this site.