Hot Jazz
#bc3033
A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#bc3033
RGB
188, 48, 51
OKLCh
52.8% 0.177 24.6°
CIELAB (D50)
43.5, 55.9, 33.9
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 83% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 77.8; on black, Lc -24.0. 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 34.5 and 40.4 and 47.2 — no red cone.
Text on this colour
White text
5.82:1 — passes AA
Black text
3.61:1 — large text only
White text is the better of the two at5.82:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#bc3033
protanopia
#515135 · ΔE00 34.5
deuteranopia
#727229 · ΔE00 40.4
tritanopia
#8c8c00 · ΔE00 47.2
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPesto Rosso at ΔE00 0.551: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Pesto RossoΔE00 0.551 · #bb3333
- Scarlet BeebalmΔE00 0.573 · #bb2d32
- Stylish RedΔE00 1.374 · #bc3439
- Aurora RedΔE00 1.426 · #c13435
- Bow TieΔE00 1.586 · #be2633
- ToadstoolΔE00 1.627 · #b8282f
- BangΔE00 1.786 · #bc393b
- Madder RedΔE00 1.796 · #b7282e
- LolitaΔE00 1.809 · #bf2735
- Red ContrastΔE00 1.818 · #b33234
- Red ObsessionΔE00 1.853 · #b63731
- Red Team SpiritΔE00 1.9 · #b8383b
9 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.