Kirsch
#b2132b
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#b2132b
RGB
178, 19, 43
OKLCh
48.9% 0.188 21.8°
CIELAB (D50)
38.8, 60.0, 32.8
What is true of this colour, and of no other
- 14 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 95% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
- As text on white it measures APCA Lc 82.0; on black, Lc -19.9. 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 34.5 and 41.9 and 48.4 — no red cone.
Text on this colour
White text
6.95:1 — passes AA
Black text
3.02:1 — large text only
White text is the better of the two at6.95:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#b2132b
protanopia
#43432d · ΔE00 34.5
deuteranopia
#676720 · ΔE00 41.9
tritanopia
#828200 · ΔE00 48.4
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isTango Red at ΔE00 0.449: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Tango RedΔE00 0.449 · #b10e2a
- Holly Jolly ChristmasΔE00 0.679 · #b50729
- Christmas RedΔE00 0.754 · #b01b2e
- Haute RedΔE00 1.505 · #aa1829
- SalsaΔE00 1.51 · #b31928
- Cadmium PurpleΔE00 1.589 · #b60c26
- Jester RedΔE00 1.612 · #ac112c
- Red Dead RedemptionΔE00 1.675 · #bb012d
- Upsdell RedΔE00 1.723 · #ae2029
- Valentine LavaΔE00 1.734 · #ba0728
- NipponΔE00 1.768 · #bc002c
- Hinomaru RedΔE00 1.827 · #bc002d
8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.