Celtics vs Bulls colors
Boston Celtics and Chicago Bulls and their primary colours sit 1.01:1 apart in lightness with a perceptual difference of 113.7. Every cross-team pairing is measured below.
These values are not yet verified
The colour values on this page are illustrative placeholders used while the site is being built. Each one must be traced to the team's own published brand assets and dated before it is presented as fact — see the method page. Do not use these figures for print or production yet.
Celtics vs Bulls
Greyscale clash- Colour difference
- ΔE 113.7
- Lightness contrast
- 1.01:1
The same two colours in greyscale — what a monochrome feed, and a viewer with colour vision deficiency, has to work with.
The two palettes
Every cross-team pairing
4 measured| Celtics colour | #CE1141 | #000000 |
|---|---|---|
| #007A33 | 1.01:1 Fails | 3.83:1 Large text only |
| #BA9653 | 2.00:1 Fails | 7.58:1 AAA |
Gold on Black is the highest-contrast combination across the two palettes. Use it for anything carrying text.
Celtics Green on Bulls Red is the lowest-contrast combination, and the one a designer reaches for by accident when both teams want their signature colour.
What the verdict means
A colour clash takes two measurements, not one. Perceptual difference says how far apart two colours look to the eye with hue included; lightness contrast says what survives when colour is removed. Judged on lightness alone, a navy and a purple can score identically to navy against itself, which is plainly wrong. Judged on hue alone, two colours that separate clearly in colour can merge completely in a monochrome broadcast.
For Celtics and Bulls the two figures are ΔE 113.7 and 1.01:1, which together give a verdict of greyscale clash. They separate by hue but sit at almost the same lightness, so they merge in greyscale and for viewers with red-green colour vision deficiency.
National Basketball Association uniforms changed character when the league moved away from fixed home-white and away-colour rules, allowing teams to field several named uniform editions in a season. That makes a single flat team palette less useful here than in any other league, because the colours a team actually wears vary from night to night.
Design with either palette
Take Celtics or Bulls colours into the design studio, add your own artwork, and check the result for print problems before committing to a run.