Abyssal Waters as a scale
Eleven steps from #005765, 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 | #e4faff | 97.0% | 0.024 ·capped | 1.08:1 | 19.39:1 | 0 | — |
| 100 | #c5f4ff | 93.8% | 0.050 ·capped | 1.18:1 | 17.77:1 | 9 | 7.0 |
| 200 | #9ce3f3 | 87.4% | 0.074 | 1.43:1 | 14.68:1 | 21 | 6.2 |
| 300 | #88cede | 81.0% | 0.074 | 1.76:1 | 11.91:1 | 32 | 5.0 |
| 400 | #74b9c9 | 74.6% | 0.074 | 2.20:1 | 9.54:1 | 43 | 5.4 |
| 500 | #60a5b4 | 68.2% | 0.074 | 2.79:1 | 7.54:1 | 54 | 5.9 |
| 600 | #4c91a0 | 61.8% | 0.074 | 3.57:1 | 5.88:1 | 63 | 6.5 |
| 700 | #377e8d | 55.4% | 0.074 | 4.64:1 | 4.53:1 | 72 | 7.3 |
| 800 | #226b79 | 49.0% | 0.074 | 6.08:1 | 3.45:1 | 80 | 7.0 |
| 900 | #00404a | 34.0% | 0.060 ·capped | 11.51:1 | 1.82:1 | 96 | 14.2 |
| 950 | #00151a | 18.0% | 0.032 ·capped | 18.71:1 | 1.12:1 | 105 | 14.8 |
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 200 to300, at ΔE00 5.0.
- 4 steps had to give up chroma to stay inside sRGB — 50, 100, 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 Abyssal Waters
complement
the hue directly opposite, at the same lightness. #6f3d32 (+180°)
analogous
the two neighbours 30° either side. #035a51 (+-30°), #255172 (+30°)
split complement
the two hues either side of the opposite, 30° apart from it. #6e3b49 (+150°), #69431e (+210°)
triad
the circle divided in three. #653d5e (+120°), #5b4c16 (+240°)
tetrad
the circle divided in four. #55436e (+90°), #6f3d32 (+180°), #455423 (+270°)
The ramp as CSS
:root {
--abyssal-waters-50: #e4faff;
--abyssal-waters-100: #c5f4ff;
--abyssal-waters-200: #9ce3f3;
--abyssal-waters-300: #88cede;
--abyssal-waters-400: #74b9c9;
--abyssal-waters-500: #60a5b4;
--abyssal-waters-600: #4c91a0;
--abyssal-waters-700: #377e8d;
--abyssal-waters-800: #226b79;
--abyssal-waters-900: #00404a;
--abyssal-waters-950: #00151a;
}