#80370E
Closest named color: Rust Brown (#8B3103). oklch(43% 0.113 45.2), rgb(128, 55, 14).
Aa
White text reads best on this color (8.49:1).
About this color
#80370E is a dark, moderately saturated brown. In OKLCH its lightness is 43%, its chroma 0.113 and its hue 45°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Brown (#8B3103), ΔE 0.023 away. White text reads best on it, at 8.49:1.
| Hue family | Browns |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.113) |
| Temperature | warm |
| Nearest name | Rust Brown (#8B3103) |
| Black text | 2.47:1 |
| White text | 8.49:1 |
Values
| HEX | #80370E |
| RGB | rgb(128, 55, 14) |
| HSL | hsl(22, 80%, 28%) |
| OKLCH | oklch(43% 0.113 45.2) |
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 #80370E | 8.49:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #80370E | 2.47:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #80370E text on white | 8.49:1 | AAA | Lc 88.6 | Fine for body text |
| #80370E text on black | 2.47:1 | Fails | Lc -13.6 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6E0
oklch(93.6% 0.019 41.8)
-
Step 200
200
#EFD2C6
oklch(88.5% 0.037 43.8)
-
Step 300
300
#E6B49E
oklch(80.9% 0.066 44.9)
-
Step 400
400
#D78B68
oklch(70.7% 0.105 45.3)
-
Step 500
500
#CB6C3D
oklch(63.2% 0.135 45.5)
-
Step 600
600
#B65118
oklch(55.6% 0.146 45.2)
-
Step 700
700
#9C4107
oklch(49% 0.136 45.4)
-
Step 800
800 (this color)
#80370E
oklch(43% 0.113 45.2)
-
Step 900
900
#673014
oklch(37.8% 0.088 45.3)
-
Step 950
950
#3C1D0D
oklch(27% 0.055 46.6)
#80370E 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) | #4C4206 | 0.105 |
| Deuteranopia (no green cones) | #5E530B | 0.095 |
| Tritanopia (no blue cones) | #8D262F | 0.059 |
| Achromatopsia (no color) | #4D4D4D | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #80370E
#80370E
oklch(43% 0.113 45.2)
- #005871
#005871
oklch(42.8% 0.081 225.4)
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 #80370E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Brown #8B3103 ΔE 0.023
- Red Brown #8B2E16 ΔE 0.029
- Brown Red #922B05 ΔE 0.039
- Saddle Brown #8B4513 ΔE 0.042
- Chestnut #742802 ΔE 0.044
- Milk Chocolate #7F4E1E ΔE 0.055
- Brick Red #8F1402 ΔE 0.057
- Medium Brown #7F5112 ΔE 0.065
Use #80370E 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.