#813D18
Closest named color: Rust Brown (#8B3103). oklch(44.2% 0.106 46.2), rgb(129, 61, 24).
Aa
White text reads best on this color (8.03:1).
About this color
#813D18 is a dark, moderately saturated brown. In OKLCH its lightness is 44%, its chroma 0.106 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Brown (#8B3103), ΔE 0.028 away. White text reads best on it, at 8.03:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.106) |
| Temperature | warm |
| Nearest name | Rust Brown (#8B3103) |
| Black text | 2.61:1 |
| White text | 8.03:1 |
Values
| HEX | #813D18 |
| RGB | rgb(129, 61, 24) |
| HSL | hsl(21, 69%, 30%) |
| OKLCH | oklch(44.2% 0.106 46.2) |
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 #813D18 | 8.03:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #813D18 | 2.61:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #813D18 text on white | 8.03:1 | AAA | Lc 87.3 | Fine for body text |
| #813D18 text on black | 2.61:1 | Fails | Lc -14.8 | 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
#F5E7E0
oklch(93.7% 0.018 48.5)
-
Step 200
200
#EED3C7
oklch(88.6% 0.034 45.5)
-
Step 300
300
#E3B59F
oklch(80.9% 0.062 46.9)
-
Step 400
400
#D48D6B
oklch(70.7% 0.099 46.3)
-
Step 500
500
#C76E42
oklch(63.1% 0.127 45.8)
-
Step 600
600
#B25420
oklch(55.5% 0.138 46)
-
Step 700
700
#994412
oklch(49.1% 0.128 46)
-
Step 800
800 (this color)
#813D18
oklch(44.2% 0.106 46.2)
-
Step 900
900
#643217
oklch(37.7% 0.082 47)
-
Step 950
950
#3B1D0F
oklch(26.9% 0.053 44.9)
#813D18 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) | #504713 | 0.097 |
| Deuteranopia (no green cones) | #615616 | 0.087 |
| Tritanopia (no blue cones) | #8E2E35 | 0.058 |
| Achromatopsia (no color) | #505050 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #813D18
#813D18
oklch(44.2% 0.106 46.2)
- #005C77
#005C77
oklch(44.2% 0.085 226.4)
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 #813D18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Brown #8B3103 ΔE 0.028
- Saddle Brown #8B4513 ΔE 0.031
- Red Brown #8B2E16 ΔE 0.035
- Milk Chocolate #7F4E1E ΔE 0.042
- Brown Red #922B05 ΔE 0.043
- Medium Brown #7F5112 ΔE 0.053
- Chestnut #742802 ΔE 0.058
- Russet #A13905 ΔE 0.063
Use #813D18 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.