#6B1818
Closest named color: Reddy Brown (#6E1005). oklch(35.2% 0.117 25.5), rgb(107, 24, 24).
Aa
White text reads best on this color (11.87:1).
About this color
#6B1818 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.117 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.017 away. White text reads best on it, at 11.87:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.117) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.76:1 |
| White text | 11.87:1 |
Values
| HEX | #6B1818 |
| RGB | rgb(107, 24, 24) |
| HSL | hsl(0, 63%, 26%) |
| OKLCH | oklch(35.2% 0.117 25.5) |
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 #6B1818 | 11.87:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #6B1818 | 1.76:1 | Fails | Lc 7.8 | Not readable |
| #6B1818 text on white | 11.87:1 | AAA | Lc 96.1 | Preferred for body text |
| #6B1818 text on black | 1.76:1 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FBE4E1
oklch(93.7% 0.026 26.5)
-
Step 200
200
#F8CEC9
oklch(88.6% 0.048 26)
-
Step 300
300
#F4ABA4
oklch(80.9% 0.087 25.3)
-
Step 400
400
#EB7B73
oklch(70.8% 0.14 25.4)
-
Step 500
500
#E1534E
oklch(63.2% 0.178 25.6)
-
Step 600
600
#CC2E31
oklch(55.5% 0.194 25.5)
-
Step 700
700
#B01E24
oklch(49% 0.18 25.5)
-
Step 800
800
#8F1D1F
oklch(42.7% 0.149 25.6)
-
Step 900
900 (this color)
#6B1818
oklch(35.2% 0.117 25.5)
-
Step 950
950
#441413
oklch(27% 0.075 24.6)
#6B1818 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) | #312C17 | 0.125 |
| Deuteranopia (no green cones) | #453E15 | 0.116 |
| Tritanopia (no blue cones) | #760019 | 0.030 |
| Achromatopsia (no color) | #373737 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B1818
#6B1818
oklch(35.2% 0.117 25.5)
- #00444A
#00444A
oklch(35.3% 0.06 204.8)
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 #6B1818, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.017
- Blood #770001 ΔE 0.032
- Claret #680018 ΔE 0.032
- Wine Red #7B0323 ΔE 0.041
- Maroon #800000 ΔE 0.046
- Chestnut #742802 ΔE 0.047
- Bordeaux #7B002C ΔE 0.050
- Burgundy #610023 ΔE 0.050
Use #6B1818 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.