#866C55
Closest named color: Dull Brown (#876E4B). oklch(55% 0.047 63.1), rgb(134, 108, 85).
Aa
White text reads best on this color (4.89:1).
About this color
#866C55 is a medium-dark, muted brown. In OKLCH its lightness is 55%, its chroma 0.047 and its hue 63°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Brown (#876E4B), ΔE 0.017 away. White text reads best on it, at 4.89:1.
| Hue family | Browns |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.047) |
| Temperature | warm |
| Nearest name | Dull Brown (#876E4B) |
| Black text | 4.28:1 |
| White text | 4.89:1 |
Values
| HEX | #866C55 |
| RGB | rgb(134, 108, 85) |
| HSL | hsl(28, 22%, 43%) |
| OKLCH | oklch(55% 0.047 63.1) |
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 #866C55 | 4.89:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #866C55 | 4.28:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #866C55 text on white | 4.89:1 | AA | Lc 73.9 | Content text, not long reading |
| #866C55 text on black | 4.28:1 | AA large text | Lc -27.8 | 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
#F7F5F3
oklch(97.1% 0.003 67.8)
-
Step 100
100
#EDE9E6
oklch(93.6% 0.006 59.6)
-
Step 200
200
#DFD8D1
oklch(88.6% 0.012 67.7)
-
Step 300
300
#CBBEB3
oklch(80.9% 0.021 62.8)
-
Step 400
400
#B09C8B
oklch(70.6% 0.034 62.6)
-
Step 500
500
#9D846E
oklch(63.1% 0.044 63.2)
-
Step 600
600 (this color)
#866C55
oklch(55% 0.047 63.1)
-
Step 700
700
#735C47
oklch(49.2% 0.044 63.9)
-
Step 800
800
#5E4B3A
oklch(42.8% 0.037 63.4)
-
Step 900
900
#4D3E32
oklch(37.6% 0.029 60.4)
-
Step 950
950
#2D251D
oklch(27.1% 0.019 66.9)
#866C55 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) | #746D53 | 0.030 |
| Deuteranopia (no green cones) | #7A7355 | 0.027 |
| Tritanopia (no blue cones) | #8E6766 | 0.036 |
| Achromatopsia (no color) | #717171 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866C55
#866C55
oklch(55% 0.047 63.1)
- #5A758C
#5A758C
oklch(55% 0.048 244.5)
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 #866C55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Brown #876E4B ΔE 0.017
- Grey Brown #7F7053 ΔE 0.017
- Dark Taupe #7F684E ΔE 0.019
- Dirt #8A6E45 ΔE 0.024
- Dirt Brown #836539 ΔE 0.036
- Cocoa #875F42 ΔE 0.036
- Mocha #9D7651 ΔE 0.051
- Earth #A2653E ΔE 0.052
Use #866C55 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.