#6B183B
Closest named color: Merlot (#730039). oklch(36% 0.12 359.6), rgb(107, 24, 59).
Aa
White text reads best on this color (11.54:1).
About this color
#6B183B is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.120 and its hue 360°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.026 away. White text reads best on it, at 11.54:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.120) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.81:1 |
| White text | 11.54:1 |
Values
| HEX | #6B183B |
| RGB | rgb(107, 24, 59) |
| HSL | hsl(335, 63%, 26%) |
| OKLCH | oklch(36% 0.12 359.6) |
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 #6B183B | 11.54:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #6B183B | 1.81:1 | Fails | Lc 8.4 | Not readable |
| #6B183B text on white | 11.54:1 | AAA | Lc 95.5 | Preferred for body text |
| #6B183B text on black | 1.81:1 | 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#FAE3E9
oklch(93.6% 0.026 359.9)
-
Step 200
200
#F6CCD8
oklch(88.5% 0.05 359.1)
-
Step 300
300
#F1A9BE
oklch(80.9% 0.088 0.2)
-
Step 400
400
#E7779D
oklch(70.7% 0.144 359.9)
-
Step 500
500
#DC4E86
oklch(63.1% 0.183 359.5)
-
Step 600
600
#C7286F
oklch(55.5% 0.2 359.7)
-
Step 700
700
#AC175D
oklch(49.1% 0.186 359.7)
-
Step 800
800
#8B194C
oklch(42.6% 0.153 359.6)
-
Step 900
900 (this color)
#6B183B
oklch(36% 0.12 359.6)
-
Step 950
950
#421325
oklch(27% 0.075 359.7)
#6B183B 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) | #2A2F3C | 0.134 |
| Deuteranopia (no green cones) | #403F39 | 0.122 |
| Tritanopia (no blue cones) | #740B27 | 0.036 |
| Achromatopsia (no color) | #393939 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B183B
#6B183B
oklch(36% 0.12 359.6)
- #00483E
#00483E
oklch(36% 0.065 179.5)
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 #6B183B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.026
- Bordeaux #7B002C ΔE 0.041
- Wine #80013F ΔE 0.046
- Velvet #750851 ΔE 0.048
- Wine Red #7B0323 ΔE 0.049
- Burgundy #610023 ΔE 0.051
- Red Purple #820747 ΔE 0.053
- Claret #680018 ΔE 0.054
Use #6B183B 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.