Master Chief as a scale
Eleven steps from #507d2a, 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 | #e5ffd4 | 97.0% | 0.062 ·capped | 1.07:1 | 19.58:1 | 0 | — |
| 100 | #cafda7 | 93.8% | 0.124 | 1.16:1 | 18.09:1 | 8 | 9.2 |
| 200 | #b5e792 | 87.4% | 0.124 | 1.41:1 | 14.86:1 | 20 | 4.6 |
| 300 | #a1d27e | 81.0% | 0.124 | 1.74:1 | 12.06:1 | 32 | 5.0 |
| 400 | #8dbe6a | 74.6% | 0.124 | 2.17:1 | 9.67:1 | 43 | 5.4 |
| 500 | #7aa956 | 68.2% | 0.124 | 2.75:1 | 7.64:1 | 53 | 5.9 |
| 600 | #679543 | 61.8% | 0.124 | 3.52:1 | 5.96:1 | 63 | 6.5 |
| 700 | #54822f | 55.4% | 0.124 | 4.57:1 | 4.59:1 | 72 | 7.2 |
| 800 | #426f19 | 49.0% | 0.124 | 6.00:1 | 3.50:1 | 80 | 7.2 |
| 900 | #224200 | 34.0% | 0.096 ·capped | 11.41:1 | 1.84:1 | 96 | 14.7 |
| 950 | #081600 | 18.0% | 0.051 ·capped | 18.67:1 | 1.12:1 | 105 | 17.9 |
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 100 to200, at ΔE00 4.6.
- 3 steps had to give up chroma to stay inside sRGB — 50, 900, 950. A wider display would show them more vividly.
- 4 steps clear 4.5:1 on white (700, 800, 900, 950), and 8 on black (50, 100, 200, 300, 400, 500, 600, 700).
Harmonies from Master Chief
complement
the hue directly opposite, at the same lightness. #8756a1 (+180°)
analogous
the two neighbours 30° either side. #7a7000 (+-30°), #00835b (+30°) — chroma capped by sRGB.
split complement
the two hues either side of the opposite, 30° apart from it. #6662b3 (+150°), #9e4e81 (+210°)
triad
the circle divided in three. #3370b4 (+120°), #a94c59 (+240°)
tetrad
the circle divided in four. #007a99 (+90°), #8756a1 (+180°), #a8522c (+270°) — chroma capped by sRGB.
The ramp as CSS
:root {
--master-chief-50: #e5ffd4;
--master-chief-100: #cafda7;
--master-chief-200: #b5e792;
--master-chief-300: #a1d27e;
--master-chief-400: #8dbe6a;
--master-chief-500: #7aa956;
--master-chief-600: #679543;
--master-chief-700: #54822f;
--master-chief-800: #426f19;
--master-chief-900: #224200;
--master-chief-950: #081600;
}