#81591C
Closest named color: Medium Brown (#7F5112). oklch(49.6% 0.092 73.6), rgb(129, 89, 28).
Aa
White text reads best on this color (6.21:1).
About this color
#81591C is a medium-dark, moderately saturated brown. In OKLCH its lightness is 50%, its chroma 0.092 and its hue 74°. Its hue sits on the warm side of the wheel. The nearest named color is Medium Brown (#7F5112), ΔE 0.022 away. White text reads best on it, at 6.21:1.
| Hue family | Browns |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.092) |
| Temperature | warm |
| Nearest name | Medium Brown (#7F5112) |
| Black text | 3.37:1 |
| White text | 6.21:1 |
Values
| HEX | #81591C |
| RGB | rgb(129, 89, 28) |
| HSL | hsl(36, 64%, 31%) |
| OKLCH | oklch(49.6% 0.092 73.6) |
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 #81591C | 6.21:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #81591C | 3.37:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #81591C text on white | 6.21:1 | AA | Lc 80.8 | Fine for body text |
| #81591C text on black | 3.37:1 | AA large text | Lc -21.1 | Dividers and decoration only |
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 700.
-
Step 50
50
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#EFE9E1
oklch(93.7% 0.013 75.4)
-
Step 200
200
#E3D7C8
oklch(88.5% 0.024 73.6)
-
Step 300
300
#D2BDA2
oklch(80.9% 0.044 74)
-
Step 400
400
#BC9A6F
oklch(70.7% 0.071 72.8)
-
Step 500
500
#AB8148
oklch(63.2% 0.091 73.3)
-
Step 600
600
#966928
oklch(55.5% 0.099 72.8)
-
Step 700
700 (this color)
#81591C
oklch(49.6% 0.092 73.6)
-
Step 800
800
#684819
oklch(42.8% 0.076 73.3)
-
Step 900
900
#543C1B
oklch(37.6% 0.059 73.1)
-
Step 950
950
#312411
oklch(27.1% 0.037 75.6)
#81591C 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) | #675B13 | 0.048 |
| Deuteranopia (no green cones) | #71651E | 0.042 |
| Tritanopia (no blue cones) | #8D4F4D | 0.076 |
| Achromatopsia (no color) | #616161 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81591C
#81591C
oklch(49.6% 0.092 73.6)
- #3A6495
#3A6495
oklch(49.6% 0.092 253.4)
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 #81591C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Brown #7F5112 ΔE 0.022
- Mud #735C12 ΔE 0.029
- Milk Chocolate #7F4E1E ΔE 0.031
- Dirt Brown #836539 ΔE 0.037
- Cocoa #875F42 ΔE 0.042
- Warm Brown #964E02 ΔE 0.043
- Muddy Brown #886806 ΔE 0.048
- Sepia #985E2B ΔE 0.048
Use #81591C 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.