#BB2F2A
Closest named color: Firebrick (#B22222). oklch(52.5% 0.178 27.4), rgb(187, 47, 42).
Aa
White text reads best on this color (5.91:1).
About this color
#BB2F2A is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.178 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Firebrick (#B22222), ΔE 0.028 away. White text reads best on it, at 5.91:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.178) |
| Temperature | warm |
| Nearest name | Firebrick (#B22222) |
| Black text | 3.55:1 |
| White text | 5.91:1 |
Values
| HEX | #BB2F2A |
| RGB | rgb(187, 47, 42) |
| HSL | hsl(2, 63%, 45%) |
| OKLCH | oklch(52.5% 0.178 27.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #BB2F2A | 5.91:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #BB2F2A | 3.55:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #BB2F2A text on white | 5.91:1 | AA | Lc 78.2 | Fine for body text |
| #BB2F2A text on black | 3.55:1 | AA large text | Lc -23.6 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#F9E4E1
oklch(93.5% 0.023 27.3)
-
Step 200
200
#F5CFC9
oklch(88.5% 0.044 28.5)
-
Step 300
300
#F0ADA5
oklch(80.9% 0.08 26.6)
-
Step 400
400
#E57F74
oklch(70.6% 0.128 27.2)
-
Step 500
500
#DB5A50
oklch(63.1% 0.164 27.2)
-
Step 600
600 (this color)
#BB2F2A
oklch(52.5% 0.178 27.4)
-
Step 700
700
#AB2B26
oklch(49.2% 0.165 27.4)
-
Step 800
800
#8B2621
oklch(42.8% 0.137 27.4)
-
Step 900
900
#6F2520
oklch(37.6% 0.106 27.2)
-
Step 950
950
#421713
oklch(27.1% 0.068 27.8)
#BB2F2A with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #595128 | 0.192 |
| Deuteranopia (no green cones) | #7C6F24 | 0.174 |
| Tritanopia (no blue cones) | #CE0030 | 0.046 |
| Achromatopsia (no color) | #646464 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB2F2A
#BB2F2A
oklch(52.5% 0.178 27.4)
- #007885
#007885
oklch(52.4% 0.09 208)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #BB2F2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Firebrick #B22222 ΔE 0.028
- Dull Red #BB3F3F ΔE 0.028
- Rusty Red #AF2F0D ΔE 0.033
- Scarlet #BE0119 ΔE 0.034
- Lipstick Red #C0022F ΔE 0.038
- Sinopia #BB3E03 ΔE 0.039
- Rufous #AE2012 ΔE 0.039
- Rust Red #AA2704 ΔE 0.046
Use #BB2F2A in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.