#851D18
Closest named color: Brick Red (#8F1402). oklch(40.7% 0.14 28.1), rgb(133, 29, 24).
Aa
White text reads best on this color (9.60:1).
About this color
#851D18 is a dark, vivid red. In OKLCH its lightness is 41%, its chroma 0.140 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Red (#8F1402), ΔE 0.023 away. White text reads best on it, at 9.60:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | vivid (0.140) |
| Temperature | warm |
| Nearest name | Brick Red (#8F1402) |
| Black text | 2.18:1 |
| White text | 9.60:1 |
Values
| HEX | #851D18 |
| RGB | rgb(133, 29, 24) |
| HSL | hsl(3, 69%, 31%) |
| OKLCH | oklch(40.7% 0.14 28.1) |
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 #851D18 | 9.60:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #851D18 | 2.18:1 | Fails | Lc 13.0 | Not readable |
| #851D18 text on white | 9.60:1 | AAA | Lc 90.9 | Preferred for body text |
| #851D18 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
#F9E4E1
oklch(93.5% 0.023 27.3)
-
Step 200
200
#F6CEC9
oklch(88.4% 0.046 26.4)
-
Step 300
300
#F1ADA3
oklch(80.9% 0.082 28.4)
-
Step 400
400
#E77E72
oklch(70.7% 0.132 27.7)
-
Step 500
500
#DC594D
oklch(63.1% 0.167 28)
-
Step 600
600
#C8382F
oklch(55.7% 0.182 28.2)
-
Step 700
700
#AC2822
oklch(49.1% 0.169 28)
-
Step 800
800 (this color)
#851D18
oklch(40.7% 0.14 28.1)
-
Step 900
900
#70241E
oklch(37.6% 0.109 27.9)
-
Step 950
950
#421612
oklch(26.9% 0.069 27.8)
#851D18 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) | #3D3616 | 0.151 |
| Deuteranopia (no green cones) | #574D13 | 0.137 |
| Tritanopia (no blue cones) | #93001D | 0.035 |
| Achromatopsia (no color) | #454545 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #851D18
#851D18
oklch(40.7% 0.14 28.1)
- #00545D
#00545D
oklch(40.8% 0.07 207.3)
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 #851D18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Red #8F1402 ΔE 0.023
- Dark Red #8B0000 ΔE 0.025
- Maroon #800000 ΔE 0.033
- Red Brown #8B2E16 ΔE 0.035
- Blood Red #980002 ΔE 0.040
- Chestnut #742802 ΔE 0.044
- Brown Red #922B05 ΔE 0.044
- Deep Red #9A0200 ΔE 0.044
Use #851D18 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.