#6C370F
Closest named color: Chestnut (#742802). oklch(39.8% 0.091 52.8), rgb(108, 55, 15).
Aa
White text reads best on this color (9.58:1).
About this color
#6C370F is a dark, moderately saturated brown. In OKLCH its lightness is 40%, its chroma 0.091 and its hue 53°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.034 away. White text reads best on it, at 9.58:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.091) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.19:1 |
| White text | 9.58:1 |
Values
| HEX | #6C370F |
| RGB | rgb(108, 55, 15) |
| HSL | hsl(26, 76%, 24%) |
| OKLCH | oklch(39.8% 0.091 52.8) |
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 #6C370F | 9.58:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #6C370F | 2.19:1 | Fails | Lc 12.2 | Not readable |
| #6C370F text on white | 9.58:1 | AAA | Lc 91.8 | Preferred for body text |
| #6C370F text on black | 2.19:1 | Fails | Lc -10.6 | 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
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F5E7DE
oklch(93.7% 0.02 55.1)
-
Step 200
200
#EED3C3
oklch(88.5% 0.037 52.7)
-
Step 300
300
#E5B598
oklch(80.9% 0.068 52.6)
-
Step 400
400
#D68D5E
oklch(70.8% 0.109 52.9)
-
Step 500
500
#C96E2B
oklch(63.1% 0.139 52.9)
-
Step 600
600
#B15600
oklch(55.5% 0.142 52.5)
-
Step 700
700
#964800
oklch(49.2% 0.125 52.6)
-
Step 800
800
#7B3A00
oklch(42.6% 0.109 52.7)
-
Step 900
900 (this color)
#6C370F
oklch(39.8% 0.091 52.8)
-
Step 950
950
#3C1D08
oklch(27% 0.058 51.7)
#6C370F 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) | #463E09 | 0.076 |
| Deuteranopia (no green cones) | #534A0E | 0.069 |
| Tritanopia (no blue cones) | #772B2F | 0.058 |
| Achromatopsia (no color) | #454545 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C370F
#6C370F
oklch(39.8% 0.091 52.8)
- #004E6C
#004E6C
oklch(39.9% 0.082 232.8)
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 #6C370F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.034
- Mud Brown #60460F ΔE 0.046
- Purple Brown #673A3F ΔE 0.058
- Rust Brown #8B3103 ΔE 0.062
- Red Brown #8B2E16 ΔE 0.065
- Milk Chocolate #7F4E1E ΔE 0.074
- Reddy Brown #6E1005 ΔE 0.075
- Saddle Brown #8B4513 ΔE 0.076
Use #6C370F 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.