#866638
Closest named color: Dirt Brown (#836539). oklch(53.2% 0.075 75), rgb(134, 102, 56).
Aa
White text reads best on this color (5.28:1).
About this color
#866638 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 53%, its chroma 0.075 and its hue 75°. Its hue sits on the warm side of the wheel. The nearest named color is Dirt Brown (#836539), ΔE 0.006 away. White text reads best on it, at 5.28:1.
| Hue family | Browns |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.075) |
| Temperature | warm |
| Nearest name | Dirt Brown (#836539) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #866638 |
| RGB | rgb(134, 102, 56) |
| HSL | hsl(35, 41%, 37%) |
| OKLCH | oklch(53.2% 0.075 75) |
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 #866638 | 5.28:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #866638 | 3.97:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #866638 text on white | 5.28:1 | AA | Lc 76.2 | Fine for body text |
| #866638 text on black | 3.97:1 | AA large text | Lc -25.5 | 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
#EEE9E3
oklch(93.6% 0.01 72.7)
-
Step 200
200
#E1D8CC
oklch(88.6% 0.019 75.3)
-
Step 300
300
#CEBEA9
oklch(80.9% 0.034 74.7)
-
Step 400
400
#B59C7B
oklch(70.7% 0.054 74.4)
-
Step 500
500
#A28459
oklch(63.1% 0.069 75.9)
-
Step 600
600 (this color)
#866638
oklch(53.2% 0.075 75)
-
Step 700
700
#785B31
oklch(49.2% 0.07 75.1)
-
Step 800
800
#624A29
oklch(42.7% 0.058 74)
-
Step 900
900
#503E26
oklch(37.7% 0.045 73.7)
-
Step 950
950
#2F2416
oklch(26.9% 0.029 72.8)
#866638 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) | #726734 | 0.035 |
| Deuteranopia (no green cones) | #7A6F39 | 0.031 |
| Tritanopia (no blue cones) | #915E5B | 0.063 |
| Achromatopsia (no color) | #6C6C6C | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866638
#866638
oklch(53.2% 0.075 75)
- #4E6E97
#4E6E97
oklch(53.1% 0.075 255)
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 #866638, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dirt Brown #836539 ΔE 0.006
- Dirt #8A6E45 ΔE 0.025
- Cocoa #875F42 ΔE 0.027
- Dull Brown #876E4B ΔE 0.027
- Dark Taupe #7F684E ΔE 0.027
- Sepia #985E2B ΔE 0.035
- Grey Brown #7F7053 ΔE 0.036
- Muddy Brown #886806 ΔE 0.038
Use #866638 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.