#91210B
Closest named color: Brick Red (#8F1402). oklch(43.2% 0.151 32.7), rgb(145, 33, 11).
Aa
White text reads best on this color (8.65:1).
About this color
#91210B is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.151 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Red (#8F1402), ΔE 0.017 away. White text reads best on it, at 8.65:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.151) |
| Temperature | warm |
| Nearest name | Brick Red (#8F1402) |
| Black text | 2.42:1 |
| White text | 8.65:1 |
Values
| HEX | #91210B |
| RGB | rgb(145, 33, 11) |
| HSL | hsl(10, 86%, 31%) |
| OKLCH | oklch(43.2% 0.151 32.7) |
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 #91210B | 8.65:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #91210B | 2.42:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #91210B text on white | 8.65:1 | AAA | Lc 88.3 | Fine for body text |
| #91210B text on black | 2.42:1 | Fails | Lc -13.8 | Not readable |
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 800.
-
Step 50
50
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FAE4DF
oklch(93.5% 0.025 32.9)
-
Step 200
200
#F8CEC5
oklch(88.5% 0.049 32.1)
-
Step 300
300
#F4AC9C
oklch(80.9% 0.088 33)
-
Step 400
400
#EB7C66
oklch(70.7% 0.142 32.4)
-
Step 500
500
#E1553A
oklch(63.1% 0.18 32.9)
-
Step 600
600
#CD3112
oklch(55.7% 0.196 32.7)
-
Step 700
700
#B02100
oklch(49% 0.182 32.8)
-
Step 800
800 (this color)
#91210B
oklch(43.2% 0.151 32.7)
-
Step 900
900
#732112
oklch(37.6% 0.118 32.6)
-
Step 950
950
#44150C
oklch(27% 0.075 32.8)
#91210B 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) | #443C06 | 0.160 |
| Deuteranopia (no green cones) | #605402 | 0.143 |
| Tritanopia (no blue cones) | #A0001E | 0.042 |
| Achromatopsia (no color) | #4C4C4C | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91210B
#91210B
oklch(43.2% 0.151 32.7)
- #005B69
#005B69
oklch(43.3% 0.076 212.7)
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 #91210B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Red #8F1402 ΔE 0.017
- Brown Red #922B05 ΔE 0.018
- Red Brown #8B2E16 ΔE 0.021
- Deep Red #9A0200 ΔE 0.027
- Blood Red #980002 ΔE 0.027
- Rust Brown #8B3103 ΔE 0.029
- Burnt Red #9F2305 ΔE 0.031
- Auburn #9B2226 ΔE 0.032
Use #91210B 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.