#6C181D
Closest named color: Reddy Brown (#6E1005). oklch(35.4% 0.117 22.5), rgb(108, 24, 29).
Aa
White text reads best on this color (11.75:1).
About this color
#6C181D is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.117 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.022 away. White text reads best on it, at 11.75:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.117) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.78:1 |
| White text | 11.75:1 |
Values
| HEX | #6C181D |
| RGB | rgb(108, 24, 29) |
| HSL | hsl(356, 64%, 26%) |
| OKLCH | oklch(35.4% 0.117 22.5) |
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 #6C181D | 11.75:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #6C181D | 1.78:1 | Fails | Lc 8.0 | Not readable |
| #6C181D text on white | 11.75:1 | AAA | Lc 95.9 | Preferred for body text |
| #6C181D text on black | 1.78:1 | 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
#F8CDCA
oklch(88.4% 0.049 22.8)
-
Step 300
300
#F4AAA7
oklch(80.8% 0.088 21.8)
-
Step 400
400
#EB7A77
oklch(70.7% 0.14 22.8)
-
Step 500
500
#E15155
oklch(63% 0.179 22.3)
-
Step 600
600
#CD2C39
oklch(55.6% 0.196 22.7)
-
Step 700
700
#B11C2C
oklch(49.2% 0.182 22.6)
-
Step 800
800
#8F1C25
oklch(42.7% 0.15 22.7)
-
Step 900
900 (this color)
#6C181D
oklch(35.4% 0.117 22.5)
-
Step 950
950
#441415
oklch(27% 0.074 22.3)
#6C181D 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) | #302C1C | 0.128 |
| Deuteranopia (no green cones) | #453E1A | 0.117 |
| Tritanopia (no blue cones) | #77001B | 0.029 |
| Achromatopsia (no color) | #383838 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C181D
#6C181D
oklch(35.4% 0.117 22.5)
- #004549
#004549
oklch(35.5% 0.06 201.4)
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 #6C181D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.022
- Claret #680018 ΔE 0.031
- Blood #770001 ΔE 0.033
- Wine Red #7B0323 ΔE 0.037
- Bordeaux #7B002C ΔE 0.045
- Maroon #800000 ΔE 0.046
- Burgundy #610023 ΔE 0.049
- Chestnut #742802 ΔE 0.050
Use #6C181D 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.