#8B1821
Closest named color: Brick Red (#8F1402). oklch(41.5% 0.149 23.2), rgb(139, 24, 33).
Aa
White text reads best on this color (9.33:1).
About this color
#8B1821 is a dark, vivid red. In OKLCH its lightness is 42%, its chroma 0.149 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Red (#8F1402), ΔE 0.024 away. White text reads best on it, at 9.33:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | vivid (0.149) |
| Temperature | warm |
| Nearest name | Brick Red (#8F1402) |
| Black text | 2.25:1 |
| White text | 9.33:1 |
Values
| HEX | #8B1821 |
| RGB | rgb(139, 24, 33) |
| HSL | hsl(355, 71%, 32%) |
| OKLCH | oklch(41.5% 0.149 23.2) |
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 #8B1821 | 9.33:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #8B1821 | 2.25:1 | Fails | Lc 13.9 | Not readable |
| #8B1821 text on white | 9.33:1 | AAA | Lc 90.0 | Preferred for body text |
| #8B1821 text on black | 2.25:1 | Fails | Lc -12.2 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FBE4E2
oklch(93.7% 0.025 23.6)
-
Step 200
200
#F8CDCA
oklch(88.4% 0.049 22.8)
-
Step 300
300
#F4ABA6
oklch(81% 0.087 23.5)
-
Step 400
400
#EB7A77
oklch(70.7% 0.14 22.8)
-
Step 500
500
#E15253
oklch(63.1% 0.179 23.4)
-
Step 600
600
#CC2E38
oklch(55.6% 0.193 23.3)
-
Step 700
700
#B01D2B
oklch(49.1% 0.18 23)
-
Step 800
800 (this color)
#8B1821
oklch(41.5% 0.149 23.2)
-
Step 900
900
#732022
oklch(37.7% 0.116 23.4)
-
Step 950
950
#441414
oklch(27% 0.074 23.5)
#8B1821 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) | #3C3720 | 0.164 |
| Deuteranopia (no green cones) | #594F1D | 0.148 |
| Tritanopia (no blue cones) | #99001D | 0.029 |
| Achromatopsia (no color) | #474747 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8B1821
#8B1821
oklch(41.5% 0.149 23.2)
- #00575D
#00575D
oklch(41.6% 0.071 202.9)
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 #8B1821, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Red #8F1402 ΔE 0.024
- Dark Red #8B0000 ΔE 0.027
- Blood Red #980002 ΔE 0.033
- Deep Red #9A0200 ΔE 0.036
- Carmine #9D0216 ΔE 0.037
- Red Wine #8C0034 ΔE 0.037
- Red Brown #8B2E16 ΔE 0.040
- Auburn #9B2226 ΔE 0.040
Use #8B1821 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.