Intergalactic Cowboy as a scale
Eleven steps from #222266, built by moving lightness in OKLCh and keeping the hue where it is. Every step is gamut-mapped by giving up chroma, never by clipping channels — clipping is what turns a light blue purple.
| Stop | Hex | OKLCh L | Chroma | On white | On black | APCA on white | ΔE00 from the step above |
|---|---|---|---|---|---|---|---|
| 50 | #f2f4ff | 97.0% | 0.014 ·capped | 1.09:1 | 19.23:1 | 0 | — |
| 100 | #e5e9ff | 93.8% | 0.030 ·capped | 1.20:1 | 17.46:1 | 10 | 4.9 |
| 200 | #cad3ff | 87.4% | 0.062 ·capped | 1.47:1 | 14.25:1 | 22 | 8.3 |
| 300 | #b1bcff | 81.0% | 0.096 ·capped | 1.83:1 | 11.47:1 | 34 | 7.1 |
| 400 | #9aa6f6 | 74.6% | 0.116 | 2.30:1 | 9.12:1 | 45 | 6.1 |
| 500 | #8792e0 | 68.2% | 0.116 | 2.92:1 | 7.19:1 | 56 | 6.1 |
| 600 | #747ecb | 61.8% | 0.116 | 3.76:1 | 5.58:1 | 65 | 6.8 |
| 700 | #626bb6 | 55.4% | 0.116 | 4.90:1 | 4.29:1 | 74 | 7.5 |
| 800 | #5058a1 | 49.0% | 0.116 | 6.45:1 | 3.26:1 | 82 | 7.0 |
| 900 | #2b2d72 | 34.0% | 0.116 | 12.16:1 | 1.73:1 | 97 | 14.1 |
| 950 | #0c0041 | 18.0% | 0.112 ·capped | 19.25:1 | 1.09:1 | 105 | 12.5 |
What is true of this ramp
- 10 of the 10 adjacent pairs differ by ΔE00 2 or more. Every step here is a step a reader can see.
- The tightest pair is 50 to100, at ΔE00 4.9.
- 5 steps had to give up chroma to stay inside sRGB — 50, 100, 200, 300, 950. A wider display would show them more vividly.
- 4 steps clear 4.5:1 on white (700, 800, 900, 950), and 7 on black (50, 100, 200, 300, 400, 500, 600).
Harmonies from Intergalactic Cowboy
complement
the hue directly opposite, at the same lightness. #372d00 (+180°) — chroma capped by sRGB.
analogous
the two neighbours 30° either side. #003052 (+-30°), #3d175a (+30°) — chroma capped by sRGB.
split complement
the two hues either side of the opposite, 30° apart from it. #432600 (+150°), #233400 (+210°) — chroma capped by sRGB.
triad
the circle divided in three. #551300 (+120°), #00381e (+240°) — chroma capped by sRGB.
tetrad
the circle divided in four. #590324 (+90°), #372d00 (+180°), #003632 (+270°) — chroma capped by sRGB.
The ramp as CSS
:root {
--intergalactic-cowboy-50: #f2f4ff;
--intergalactic-cowboy-100: #e5e9ff;
--intergalactic-cowboy-200: #cad3ff;
--intergalactic-cowboy-300: #b1bcff;
--intergalactic-cowboy-400: #9aa6f6;
--intergalactic-cowboy-500: #8792e0;
--intergalactic-cowboy-600: #747ecb;
--intergalactic-cowboy-700: #626bb6;
--intergalactic-cowboy-800: #5058a1;
--intergalactic-cowboy-900: #2b2d72;
--intergalactic-cowboy-950: #0c0041;
}