#6B2311
Closest named color: Chestnut (#742802). oklch(36.4% 0.107 35), rgb(107, 35, 17).
Aa
White text reads best on this color (11.20:1).
About this color
#6B2311 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.107 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.027 away. White text reads best on it, at 11.20:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.107) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.87:1 |
| White text | 11.20:1 |
Values
| HEX | #6B2311 |
| RGB | rgb(107, 35, 17) |
| HSL | hsl(12, 73%, 24%) |
| OKLCH | oklch(36.4% 0.107 35) |
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 #6B2311 | 11.20:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #6B2311 | 1.87:1 | Fails | Lc 8.8 | Not readable |
| #6B2311 text on white | 11.20:1 | AAA | Lc 95.1 | Preferred for body text |
| #6B2311 text on black | 1.87:1 | Fails | Lc -7.5 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F9E5E0
oklch(93.7% 0.023 34.3)
-
Step 200
200
#F5CFC6
oklch(88.4% 0.045 33.5)
-
Step 300
300
#EFAF9E
oklch(80.9% 0.079 35.4)
-
Step 400
400
#E58168
oklch(70.7% 0.129 35)
-
Step 500
500
#DA5D3E
oklch(63.1% 0.164 35.1)
-
Step 600
600
#C53E1A
oklch(55.6% 0.178 35.1)
-
Step 700
700
#AA2E0A
oklch(49.1% 0.166 35)
-
Step 800
800
#8A280E
oklch(42.7% 0.137 35)
-
Step 900
900 (this color)
#6B2311
oklch(36.4% 0.107 35)
-
Step 950
950
#41180E
oklch(27% 0.067 34.9)
#6B2311 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) | #38310E | 0.108 |
| Deuteranopia (no green cones) | #49410E | 0.100 |
| Tritanopia (no blue cones) | #760F1F | 0.042 |
| Achromatopsia (no color) | #3B3B3B | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B2311
#6B2311
oklch(36.4% 0.107 35)
- #004653
#004653
oklch(36.3% 0.064 215.3)
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 #6B2311, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.027
- Reddy Brown #6E1005 ΔE 0.028
- Blood #770001 ΔE 0.042
- Maroon #800000 ΔE 0.051
- Claret #680018 ΔE 0.055
- Wine Red #7B0323 ΔE 0.057
- Purple Brown #673A3F ΔE 0.067
- Bordeaux #7B002C ΔE 0.067
Use #6B2311 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.