#81380F
Closest named color: Rust Brown (#8B3103). oklch(43.3% 0.113 45.4), rgb(129, 56, 15).
Aa
White text reads best on this color (8.37:1).
About this color
#81380F 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 0.022 away. White text reads best on it, at 8.37:1.
| Hue family | Browns |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.113) |
| Temperature | warm |
| Nearest name | Rust Brown (#8B3103) |
| Black text | 2.50:1 |
| White text | 8.37:1 |
Values
| HEX | #81380F |
| RGB | rgb(129, 56, 15) |
| HSL | hsl(22, 79%, 28%) |
| OKLCH | oklch(43.3% 0.113 45.4) |
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 #81380F | 8.37:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #81380F | 2.50:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #81380F text on white | 8.37:1 | AAA | Lc 88.3 | Fine for body text |
| #81380F text on black | 2.50:1 | Fails | Lc -13.9 | 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
#B65117
oklch(55.6% 0.147 45.4)
-
Step 700
700
#9C4106
oklch(49% 0.136 45.5)
-
Step 800
800 (this color)
#81380F
oklch(43.3% 0.113 45.4)
-
Step 900
900
#663014
oklch(37.6% 0.087 45.7)
-
Step 950
950
#3C1D0D
oklch(27% 0.055 46.6)
#81380F 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) | #4D4307 | 0.105 |
| Deuteranopia (no green cones) | #5F540C | 0.095 |
| Tritanopia (no blue cones) | #8E2730 | 0.060 |
| Achromatopsia (no color) | #4E4E4E | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81380F
#81380F
oklch(43.3% 0.113 45.4)
- #005973
#005973
oklch(43.2% 0.083 226.1)
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 #81380F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Brown #8B3103 ΔE 0.022
- Red Brown #8B2E16 ΔE 0.029
- Brown Red #922B05 ΔE 0.038
- Saddle Brown #8B4513 ΔE 0.039
- Chestnut #742802 ΔE 0.048
- Milk Chocolate #7F4E1E ΔE 0.052
- Brick Red #8F1402 ΔE 0.058
- Medium Brown #7F5112 ΔE 0.062
Use #81380F 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.