King Crimson
#c64a4a
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#c64a4a
RGB
198, 74, 74
OKLCh
57.7% 0.159 23.5°
CIELAB (D50)
49.4, 50.3, 27.7
What is true of this colour, and of no other
- 11 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
- It uses 68% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 71.7; on black, Lc -30.0. The sign is the polarity, which the WCAG ratio discards.
- Built into an eleven-step scale, 10 of the 10 adjacent pairs stay ΔE00 2 apart — see the ramp.
- protanopia and deuteranopia and tritanopia shift it by ΔE00 32.2 and 37.9 and 46.8 — no red cone.
Text on this colour
White text
4.69:1 — passes AA
Black text
4.48:1 — large text only
White text is the better of the two at4.69:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#c64a4a
protanopia
#63634b · ΔE00 32.2
deuteranopia
#7f7f44 · ΔE00 37.9
tritanopia
#989800 · ΔE00 46.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isRusty Chainmail at ΔE00 0.845: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Rusty ChainmailΔE00 0.845 · #c6494c
- WhiplashΔE00 0.95 · #c74547
- Zhū Hóng VermillionΔE00 1.108 · #cb464a
- Autumn FireΔE00 1.208 · #c44e4f
- English VermillionΔE00 1.247 · #cc474b
- Red TrilliumΔE00 1.267 · #c44d4f
- African MahoganyΔE00 1.486 · #cd4a4a
- Bullfighters RedΔE00 1.578 · #cd4646
- Maple RedΔE00 1.736 · #bf514e
- Holland RedΔE00 1.837 · #cb4543
- Mullen PinkΔE00 1.969 · #ca4042
- SunsetΔE00 2.025 · #c0514a
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.