#6B151B
Closest named color: Reddy Brown (#6E1005). oklch(34.9% 0.119 22.6), rgb(107, 21, 27).
Aa
White text reads best on this color (12.01:1).
About this color
#6B151B is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.119 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.021 away. White text reads best on it, at 12.01:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.119) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.74:1 |
| White text | 12.01:1 |
Values
| HEX | #6B151B |
| RGB | rgb(107, 21, 27) |
| HSL | hsl(356, 67%, 25%) |
| OKLCH | oklch(34.9% 0.119 22.6) |
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 #6B151B | 12.01:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #6B151B | 1.74:1 | Fails | Lc 7.6 | Not readable |
| #6B151B text on white | 12.01:1 | AAA | Lc 96.3 | Preferred for body text |
| #6B151B text on black | 1.74:1 | Fails | Lc 0.0 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FBE4E2
oklch(93.7% 0.025 23.6)
-
Step 200
200
#F9CDCA
oklch(88.5% 0.05 22.7)
-
Step 300
300
#F5AAA6
oklch(80.9% 0.089 22.6)
-
Step 400
400
#EC7977
oklch(70.7% 0.142 22.4)
-
Step 500
500
#E35053
oklch(63.2% 0.183 22.9)
-
Step 600
600
#CE2A38
oklch(55.6% 0.198 22.7)
-
Step 700
700
#B2182B
oklch(49.2% 0.185 22.4)
-
Step 800
800
#901A24
oklch(42.7% 0.152 22.8)
-
Step 900
900 (this color)
#6B151B
oklch(34.9% 0.119 22.6)
-
Step 950
950
#441414
oklch(27% 0.074 23.5)
#6B151B 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) | #2F2B1A | 0.130 |
| Deuteranopia (no green cones) | #443D18 | 0.119 |
| Tritanopia (no blue cones) | #760018 | 0.027 |
| Achromatopsia (no color) | #363636 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B151B
#6B151B
oklch(34.9% 0.119 22.6)
- #004348
#004348
oklch(34.9% 0.059 203.2)
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 #6B151B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.021
- Claret #680018 ΔE 0.026
- Blood #770001 ΔE 0.032
- Wine Red #7B0323 ΔE 0.038
- Burgundy #610023 ΔE 0.044
- Bordeaux #7B002C ΔE 0.046
- Maroon #800000 ΔE 0.048
- Chestnut #742802 ΔE 0.054
Use #6B151B 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.