Flash in the Pan as a scale
Eleven steps from #ff9977, 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 | #fff2ee | 97.0% | 0.015 ·capped | 1.10:1 | 19.17:1 | 0 | — |
| 100 | #ffe4db | 93.8% | 0.032 ·capped | 1.21:1 | 17.35:1 | 10 | 5.8 |
| 200 | #ffc7b4 | 87.4% | 0.070 ·capped | 1.49:1 | 14.05:1 | 23 | 9.6 |
| 300 | #ffa88b | 81.0% | 0.111 ·capped | 1.87:1 | 11.20:1 | 35 | 8.5 |
| 400 | #f38e6c | 74.6% | 0.132 | 2.37:1 | 8.87:1 | 46 | 6.3 |
| 500 | #dd7a59 | 68.2% | 0.132 | 3.01:1 | 6.98:1 | 56 | 6.1 |
| 600 | #c76646 | 61.8% | 0.132 | 3.88:1 | 5.42:1 | 66 | 6.7 |
| 700 | #b15333 | 55.4% | 0.132 | 5.05:1 | 4.16:1 | 74 | 7.4 |
| 800 | #9c401f | 49.0% | 0.132 | 6.65:1 | 3.16:1 | 82 | 6.9 |
| 900 | #641c00 | 34.0% | 0.109 ·capped | 12.30:1 | 1.71:1 | 97 | 13.8 |
| 950 | #250600 | 18.0% | 0.057 ·capped | 19.00:1 | 1.10:1 | 105 | 18.1 |
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 5.8.
- 6 steps had to give up chroma to stay inside sRGB — 50, 100, 200, 300, 900, 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 Flash in the Pan
complement
the hue directly opposite, at the same lightness. #31cbf1 (+180°)
analogous
the two neighbours 30° either side. #ff93a6 (+-30°), #eea751 (+30°) — chroma capped by sRGB.
split complement
the two hues either side of the opposite, 30° apart from it. #1dd2c9 (+150°), #7bbeff (+210°) — chroma capped by sRGB.
triad
the circle divided in three. #62d199 (+120°), #a8b0ff (+240°) — chroma capped by sRGB.
tetrad
the circle divided in four. #9dc86a (+90°), #31cbf1 (+180°), #d1a0f8 (+270°)
The ramp as CSS
:root {
--flash-in-the-pan-50: #fff2ee;
--flash-in-the-pan-100: #ffe4db;
--flash-in-the-pan-200: #ffc7b4;
--flash-in-the-pan-300: #ffa88b;
--flash-in-the-pan-400: #f38e6c;
--flash-in-the-pan-500: #dd7a59;
--flash-in-the-pan-600: #c76646;
--flash-in-the-pan-700: #b15333;
--flash-in-the-pan-800: #9c401f;
--flash-in-the-pan-900: #641c00;
--flash-in-the-pan-950: #250600;
}