Harlock’s Cape
#bb0000
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#bb0000
RGB
187, 0, 0
OKLCh
49.7% 0.204 29.2°
CIELAB (D50)
39.7, 64.0, 55.3
What is true of this colour, and of no other
- 10 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 sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
- As text on white it measures APCA Lc 80.4; on black, Lc -21.4. 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 38.6 and 41.1 and 45.5 — no red cone.
Text on this colour
White text
6.75:1 — passes AA
Black text
3.11:1 — large text only
White text is the better of the two at6.75:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#bb0000
protanopia
#434307 · ΔE00 38.6
deuteranopia
#6a6a00 · ΔE00 41.1
tritanopia
#888800 · ΔE00 45.5
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBloody Mary at ΔE00 0.866: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Bloody MaryΔE00 0.866 · #ba0105
- Red Prayer FlagΔE00 0.957 · #bb1100
- Free Speech RedΔE00 1.036 · #c00000
- Ghost PepperΔE00 1.274 · #c10102
- International OrangeΔE00 1.48 · #ba160c
- CharsiuΔE00 1.616 · #c01205
- BullseyeΔE00 1.65 · #b9030a
- Tomato SauceΔE00 1.684 · #b21807
- All Systems RedΔE00 1.753 · #b30103
- Threatening RedΔE00 1.808 · #c30305
- Wazdakka RedΔE00 2.028 · #b21b00
- Hell RiderΔE00 2.06 · #c40700
7 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.