#811D1B
Closest named color: Dark Red (#8B0000). oklch(39.9% 0.135 26.7), rgb(129, 29, 27).
Aa
White text reads best on this color (9.88:1).
About this color
#811D1B is a dark, moderately saturated red. In OKLCH its lightness is 40%, its chroma 0.135 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Red (#8B0000), ΔE 0.029 away. White text reads best on it, at 9.88:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Dark Red (#8B0000) |
| Black text | 2.12:1 |
| White text | 9.88:1 |
Values
| HEX | #811D1B |
| RGB | rgb(129, 29, 27) |
| HSL | hsl(1, 65%, 31%) |
| OKLCH | oklch(39.9% 0.135 26.7) |
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 #811D1B | 9.88:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #811D1B | 2.12:1 | Fails | Lc 12.3 | Not readable |
| #811D1B text on white | 9.88:1 | AAA | Lc 91.7 | Preferred for body text |
| #811D1B text on black | 2.12:1 | Fails | Lc -10.7 | 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 900.
-
Step 50
50
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FDCCC5
oklch(88.6% 0.057 27.7)
-
Step 300
300
#FCA79D
oklch(80.9% 0.102 26.9)
-
Step 400
400
#F57368
oklch(70.7% 0.162 26.9)
-
Step 500
500
#ED433E
oklch(63.2% 0.208 26.8)
-
Step 600
600
#D8021A
oklch(55.6% 0.226 26.7)
-
Step 700
700
#B70013
oklch(49% 0.2 26.8)
-
Step 800
800
#98000E
oklch(42.8% 0.174 26.8)
-
Step 900
900 (this color)
#811D1B
oklch(39.9% 0.135 26.7)
-
Step 950
950
#480F0D
oklch(27% 0.087 26.8)
#811D1B 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) | #3B351A | 0.146 |
| Deuteranopia (no green cones) | #544B17 | 0.133 |
| Tritanopia (no blue cones) | #8F001E | 0.035 |
| Achromatopsia (no color) | #434343 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #811D1B
#811D1B
oklch(39.9% 0.135 26.7)
- #00525A
#00525A
oklch(40.1% 0.069 206.2)
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 #811D1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Red #8B0000 ΔE 0.029
- Maroon #800000 ΔE 0.030
- Brick Red #8F1402 ΔE 0.032
- Wine Red #7B0323 ΔE 0.039
- Chestnut #742802 ΔE 0.040
- Red Brown #8B2E16 ΔE 0.042
- Blood #770001 ΔE 0.044
- Blood Red #980002 ΔE 0.049
Use #811D1B 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.