#81312E
Closest named color: Red Brown (#8B2E16). oklch(42.7% 0.112 25.1), rgb(129, 49, 46).
Aa
White text reads best on this color (8.70:1).
About this color
#81312E is a dark, moderately saturated red. In OKLCH its lightness is 43%, its chroma 0.112 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Red Brown (#8B2E16), ΔE 0.031 away. White text reads best on it, at 8.70:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.112) |
| Temperature | warm |
| Nearest name | Red Brown (#8B2E16) |
| Black text | 2.41:1 |
| White text | 8.70:1 |
Values
| HEX | #81312E |
| RGB | rgb(129, 49, 46) |
| HSL | hsl(2, 47%, 34%) |
| OKLCH | oklch(42.7% 0.112 25.1) |
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 #81312E | 8.70:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #81312E | 2.41:1 | Fails | Lc 14.8 | Not readable |
| #81312E text on white | 8.70:1 | AAA | Lc 89.2 | Fine for body text |
| #81312E text on black | 2.41:1 | Fails | Lc -13.0 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E5E3
oklch(93.5% 0.019 25.6)
-
Step 200
200
#F0D1CD
oklch(88.6% 0.035 26.6)
-
Step 300
300
#E8B1AB
oklch(80.9% 0.065 25.7)
-
Step 400
400
#DA867F
oklch(70.6% 0.105 25.2)
-
Step 500
500
#CE665F
oklch(63.2% 0.133 25.5)
-
Step 600
600
#B94A46
oklch(55.6% 0.145 25)
-
Step 700
700
#9F3A37
oklch(49% 0.135 25.1)
-
Step 800
800 (this color)
#81312E
oklch(42.7% 0.112 25.1)
-
Step 900
900
#682C29
oklch(37.6% 0.087 25)
-
Step 950
950
#3D1B18
oklch(27% 0.054 26.5)
#81312E 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) | #45402D | 0.119 |
| Deuteranopia (no green cones) | #59522C | 0.111 |
| Tritanopia (no blue cones) | #8D2131 | 0.035 |
| Achromatopsia (no color) | #4B4B4B | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81312E
#81312E
oklch(42.7% 0.112 25.1)
- #005A62
#005A62
oklch(42.7% 0.073 205.3)
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 #81312E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Brown #8B2E16 ΔE 0.031
- Rust Brown #8B3103 ΔE 0.042
- Brown Red #922B05 ΔE 0.046
- Brick Red #8F1402 ΔE 0.050
- Chestnut #742802 ΔE 0.052
- Brownish Purple #76424E ΔE 0.053
- Auburn #9B2226 ΔE 0.053
- Purple Brown #673A3F ΔE 0.055
Use #81312E 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.