#6D370A
Closest named color: Chestnut (#742802). oklch(39.9% 0.093 54), rgb(109, 55, 10).
Aa
White text reads best on this color (9.54:1).
About this color
#6D370A is a dark, moderately saturated brown. In OKLCH its lightness is 40%, its chroma 0.093 and its hue 54°. 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 9.54:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.093) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.20:1 |
| White text | 9.54:1 |
Values
| HEX | #6D370A |
| RGB | rgb(109, 55, 10) |
| HSL | hsl(27, 83%, 23%) |
| OKLCH | oklch(39.9% 0.093 54) |
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 #6D370A | 9.54:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #6D370A | 2.20:1 | Fails | Lc 12.3 | Not readable |
| #6D370A text on white | 9.54:1 | AAA | Lc 91.7 | Preferred for body text |
| #6D370A text on black | 2.20:1 | Fails | Lc -10.7 | 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
#EFD3C2
oklch(88.6% 0.039 53.3)
-
Step 300
300
#E5B596
oklch(80.9% 0.07 54.3)
-
Step 400
400
#D78D5A
oklch(70.8% 0.112 54.4)
-
Step 500
500
#CA6D23
oklch(63% 0.143 53.8)
-
Step 600
600
#B05800
oklch(55.7% 0.14 54)
-
Step 700
700
#944900
oklch(49% 0.123 54)
-
Step 800
800
#7A3B00
oklch(42.6% 0.107 54)
-
Step 900
900 (this color)
#6D370A
oklch(39.9% 0.093 54)
-
Step 950
950
#3C1D06
oklch(26.9% 0.059 53.7)
#6D370A 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) | #473E03 | 0.077 |
| Deuteranopia (no green cones) | #544A09 | 0.069 |
| Tritanopia (no blue cones) | #782B2F | 0.060 |
| Achromatopsia (no color) | #454545 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D370A
#6D370A
oklch(39.9% 0.093 54)
- #004E6D
#004E6D
oklch(39.9% 0.083 233.7)
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 #6D370A, 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 0.045
- Rust Brown #8B3103 ΔE 0.061
- Purple Brown #673A3F ΔE 0.062
- Red Brown #8B2E16 ΔE 0.064
- Milk Chocolate #7F4E1E ΔE 0.073
- Saddle Brown #8B4513 ΔE 0.074
- Brown Red #922B05 ΔE 0.076
Use #6D370A 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.