#81663D
Closest named color: Dirt Brown (#836539). oklch(52.7% 0.067 76.9), rgb(129, 102, 61).
Aa
White text reads best on this color (5.38:1).
About this color
#81663D is a medium-dark, muted brown. In OKLCH its lightness is 53%, its chroma 0.067 and its hue 77°. Its hue sits on the warm side of the wheel. The nearest named color is Dirt Brown (#836539), ΔE 0.005 away. White text reads best on it, at 5.38:1.
| Hue family | Browns |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.067) |
| Temperature | warm |
| Nearest name | Dirt Brown (#836539) |
| Black text | 3.90:1 |
| White text | 5.38:1 |
Values
| HEX | #81663D |
| RGB | rgb(129, 102, 61) |
| HSL | hsl(36, 36%, 37%) |
| OKLCH | oklch(52.7% 0.067 76.9) |
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 #81663D | 5.38:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #81663D | 3.90:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #81663D text on white | 5.38:1 | AA | Lc 76.8 | Fine for body text |
| #81663D text on black | 3.90:1 | AA large text | Lc -25.0 | 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 600.
-
Step 50
50
#F7F5F2
oklch(97.1% 0.005 78.3)
-
Step 100
100
#EDE9E4
oklch(93.6% 0.008 73.7)
-
Step 200
200
#DFD8CD
oklch(88.5% 0.017 79.3)
-
Step 300
300
#CCBFAB
oklch(81% 0.031 78.7)
-
Step 400
400
#B29D7F
oklch(70.7% 0.048 76.6)
-
Step 500
500
#9F855F
oklch(63.1% 0.062 76.7)
-
Step 600
600 (this color)
#81663D
oklch(52.7% 0.067 76.9)
-
Step 700
700
#755C37
oklch(49.1% 0.062 76.3)
-
Step 800
800
#5F4B2E
oklch(42.6% 0.051 76)
-
Step 900
900
#4E3F29
oklch(37.8% 0.04 76.6)
-
Step 950
950
#2E2518
oklch(27.1% 0.026 76.4)
#81663D 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) | #71663A | 0.028 |
| Deuteranopia (no green cones) | #776D3E | 0.025 |
| Tritanopia (no blue cones) | #8B5F5C | 0.057 |
| Achromatopsia (no color) | #6A6A6A | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81663D
#81663D
oklch(52.7% 0.067 76.9)
- #526C92
#526C92
oklch(52.7% 0.068 257.8)
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 #81663D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dirt Brown #836539 ΔE 0.005
- Dark Taupe #7F684E ΔE 0.021
- Cocoa #875F42 ΔE 0.025
- Dull Brown #876E4B ΔE 0.028
- Dirt #8A6E45 ΔE 0.028
- Grey Brown #7F7053 ΔE 0.032
- Sepia #985E2B ΔE 0.043
- Muddy Brown #886806 ΔE 0.044
Use #81663D 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.