#55310C
Closest named color: Chestnut (#742802). oklch(35.1% 0.072 61.6), rgb(85, 49, 12).
Aa
White text reads best on this color (11.46:1).
About this color
#55310C is a dark, moderately saturated brown. In OKLCH its lightness is 35%, its chroma 0.072 and its hue 62°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.064 away. White text reads best on it, at 11.46:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.072) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.83:1 |
| White text | 11.46:1 |
Values
| HEX | #55310C |
| RGB | rgb(85, 49, 12) |
| HSL | hsl(30, 75%, 19%) |
| OKLCH | oklch(35.1% 0.072 61.6) |
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 #55310C | 11.46:1 | AAA | Lc -99.9 | Preferred for body text |
| Black text on #55310C | 1.83:1 | Fails | Lc 7.7 | Not readable |
| #55310C text on white | 11.46:1 | AAA | Lc 96.2 | Preferred for body text |
| #55310C text on black | 1.83:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#F9F4F1
oklch(97% 0.007 53.4)
-
Step 100
100
#F2E8E0
oklch(93.7% 0.015 61.3)
-
Step 200
200
#E8D5C6
oklch(88.4% 0.029 60.7)
-
Step 300
300
#DBB99E
oklch(80.8% 0.054 60.4)
-
Step 400
400
#C89468
oklch(70.6% 0.086 61)
-
Step 500
500
#B9793D
oklch(63.1% 0.11 61.6)
-
Step 600
600
#A46117
oklch(55.7% 0.119 62)
-
Step 700
700
#8C5006
oklch(49.1% 0.11 62.3)
-
Step 800
800
#72410C
oklch(42.6% 0.092 61.2)
-
Step 900
900 (this color)
#55310C
oklch(35.1% 0.072 61.6)
-
Step 950
950
#36210D
oklch(27% 0.045 62.4)
#55310C 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) | #3C3407 | 0.051 |
| Deuteranopia (no green cones) | #453D0C | 0.046 |
| Tritanopia (no blue cones) | #5E292A | 0.053 |
| Achromatopsia (no color) | #393939 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55310C
#55310C
oklch(35.1% 0.072 61.6)
- #103F5D
#103F5D
oklch(35.2% 0.072 241.6)
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 #55310C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.064
- Mud Brown #60460F ΔE 0.066
- Dark Olive #373E02 ΔE 0.070
- Reddy Brown #6E1005 ΔE 0.077
- Purple Brown #673A3F ΔE 0.078
- Charcoal Grey #3C4142 ΔE 0.080
- Pakistan Green #283618 ΔE 0.081
- Chocolate Brown #411900 ΔE 0.083
Use #55310C 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.