#851D10
Closest named color: Brick Red (#8F1402). oklch(40.6% 0.141 30.8), rgb(133, 29, 16).
Aa
White text reads best on this color (9.63:1).
About this color
#851D10 is a dark, vivid red. In OKLCH its lightness is 41%, its chroma 0.141 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Red (#8F1402), ΔE 0.021 away. White text reads best on it, at 9.63:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | vivid (0.141) |
| Temperature | warm |
| Nearest name | Brick Red (#8F1402) |
| Black text | 2.18:1 |
| White text | 9.63:1 |
Values
| HEX | #851D10 |
| RGB | rgb(133, 29, 16) |
| HSL | hsl(7, 79%, 29%) |
| OKLCH | oklch(40.6% 0.141 30.8) |
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 #851D10 | 9.63:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #851D10 | 2.18:1 | Fails | Lc 13.0 | Not readable |
| #851D10 text on white | 9.63:1 | AAA | Lc 91.0 | Preferred for body text |
| #851D10 text on black | 2.18:1 | Fails | Lc -11.4 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#F9E4E0
oklch(93.5% 0.024 30.5)
-
Step 200
200
#F6CFC7
oklch(88.6% 0.046 31.6)
-
Step 300
300
#F1ADA0
oklch(80.8% 0.083 31.1)
-
Step 400
400
#E77F6D
oklch(70.7% 0.132 31)
-
Step 500
500
#DD5946
oklch(63.2% 0.169 30.6)
-
Step 600
600
#C83826
oklch(55.6% 0.184 30.7)
-
Step 700
700
#AC2918
oklch(49% 0.17 30.9)
-
Step 800
800 (this color)
#851D10
oklch(40.6% 0.141 30.8)
-
Step 900
900
#71241A
oklch(37.7% 0.111 30.3)
-
Step 950
950
#421710
oklch(27% 0.069 31.3)
#851D10 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) | #3E360D | 0.150 |
| Deuteranopia (no green cones) | #574D09 | 0.137 |
| Tritanopia (no blue cones) | #93001B | 0.037 |
| Achromatopsia (no color) | #454545 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #851D10
#851D10
oklch(40.6% 0.141 30.8)
- #00535F
#00535F
oklch(40.6% 0.071 211.4)
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 #851D10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Red #8F1402 ΔE 0.021
- Dark Red #8B0000 ΔE 0.024
- Maroon #800000 ΔE 0.032
- Red Brown #8B2E16 ΔE 0.034
- Blood Red #980002 ΔE 0.040
- Chestnut #742802 ΔE 0.040
- Brown Red #922B05 ΔE 0.041
- Rust Brown #8B3103 ΔE 0.043
Use #851D10 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.