#6B310A
Closest named color: Chestnut (#742802). oklch(38.5% 0.096 49), rgb(107, 49, 10).
Aa
White text reads best on this color (10.15:1).
About this color
#6B310A is a dark, moderately saturated brown. In OKLCH its lightness is 39%, its chroma 0.096 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.024 away. White text reads best on it, at 10.15:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.096) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.06:1 |
| White text | 10.15:1 |
Values
| HEX | #6B310A |
| RGB | rgb(107, 49, 10) |
| HSL | hsl(24, 83%, 23%) |
| OKLCH | oklch(38.5% 0.096 49) |
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 #6B310A | 10.15:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #6B310A | 2.06:1 | Fails | Lc 10.9 | Not readable |
| #6B310A text on white | 10.15:1 | AAA | Lc 93.1 | Preferred for body text |
| #6B310A text on black | 2.06:1 | Fails | Lc -9.4 | 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
#F6E6DE
oklch(93.6% 0.021 48.5)
-
Step 200
200
#F0D2C3
oklch(88.5% 0.039 48.3)
-
Step 300
300
#E8B398
oklch(80.8% 0.072 48.3)
-
Step 400
400
#DA8A5E
oklch(70.7% 0.114 49)
-
Step 500
500
#CE6A2B
oklch(63.1% 0.146 49.1)
-
Step 600
600
#B65200
oklch(55.7% 0.149 48.9)
-
Step 700
700
#9A4400
oklch(49.2% 0.132 48.7)
-
Step 800
800
#7F3700
oklch(42.8% 0.115 48.9)
-
Step 900
900 (this color)
#6B310A
oklch(38.5% 0.096 49)
-
Step 950
950
#3D1C08
oklch(26.9% 0.06 49.1)
#6B310A 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) | #423904 | 0.084 |
| Deuteranopia (no green cones) | #504608 | 0.076 |
| Tritanopia (no blue cones) | #76242A | 0.056 |
| Achromatopsia (no color) | #414141 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B310A
#6B310A
oklch(38.5% 0.096 49)
- #004B64
#004B64
oklch(38.6% 0.076 228.9)
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 #6B310A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.024
- Mud Brown #60460F ΔE 0.058
- Reddy Brown #6E1005 ΔE 0.061
- Purple Brown #673A3F ΔE 0.061
- Rust Brown #8B3103 ΔE 0.067
- Red Brown #8B2E16 ΔE 0.068
- Blood #770001 ΔE 0.071
- Maroon #800000 ΔE 0.073
Use #6B310A 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.