#6D371F
Closest named color: Chestnut (#742802). oklch(40.1% 0.085 43.6), rgb(109, 55, 31).
Aa
White text reads best on this color (9.47:1).
About this color
#6D371F is a dark, moderately saturated brown. In OKLCH its lightness is 40%, its chroma 0.085 and its hue 44°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.035 away. White text reads best on it, at 9.47:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.085) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.21:1 |
| White text | 9.47:1 |
Values
| HEX | #6D371F |
| RGB | rgb(109, 55, 31) |
| HSL | hsl(18, 56%, 27%) |
| OKLCH | oklch(40.1% 0.085 43.6) |
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 #6D371F | 9.47:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #6D371F | 2.21:1 | Fails | Lc 12.4 | Not readable |
| #6D371F text on white | 9.47:1 | AAA | Lc 91.6 | Preferred for body text |
| #6D371F text on black | 2.21:1 | Fails | Lc -10.8 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F5E6E0
oklch(93.5% 0.018 43.2)
-
Step 200
200
#EED2C7
oklch(88.4% 0.035 42.7)
-
Step 300
300
#E5B4A0
oklch(80.9% 0.064 43.3)
-
Step 400
400
#D68B6C
oklch(70.6% 0.102 43.2)
-
Step 500
500
#C96C44
oklch(63% 0.13 43.2)
-
Step 600
600
#B55222
oklch(55.7% 0.142 43.6)
-
Step 700
700
#9B4214
oklch(49.1% 0.131 43.8)
-
Step 800
800
#7E3714
oklch(42.7% 0.109 43.9)
-
Step 900
900 (this color)
#6D371F
oklch(40.1% 0.085 43.6)
-
Step 950
950
#3C1D0F
oklch(27.1% 0.054 44.2)
#6D371F 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) | #463E1D | 0.077 |
| Deuteranopia (no green cones) | #534A1E | 0.070 |
| Tritanopia (no blue cones) | #782C31 | 0.046 |
| Achromatopsia (no color) | #464646 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D371F
#6D371F
oklch(40.1% 0.085 43.6)
- #005066
#005066
oklch(40.1% 0.075 224.3)
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 #6D371F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.035
- Purple Brown #673A3F ΔE 0.044
- Mud Brown #60460F ΔE 0.054
- Red Brown #8B2E16 ΔE 0.060
- Rust Brown #8B3103 ΔE 0.061
- Brownish Purple #76424E ΔE 0.069
- Reddy Brown #6E1005 ΔE 0.073
- Brown Red #922B05 ΔE 0.074
Use #6D371F 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.