#6B183C
Closest named color: Merlot (#730039). oklch(36.1% 0.12 358.9), rgb(107, 24, 60).
Aa
White text reads best on this color (11.53:1).
About this color
#6B183C is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.120 and its hue 359°. 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 11.53:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.120) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.82:1 |
| White text | 11.53:1 |
Values
| HEX | #6B183C |
| RGB | rgb(107, 24, 60) |
| HSL | hsl(334, 63%, 26%) |
| OKLCH | oklch(36.1% 0.12 358.9) |
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 #6B183C | 11.53:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #6B183C | 1.82:1 | Fails | Lc 8.4 | Not readable |
| #6B183C text on white | 11.53:1 | AAA | Lc 95.5 | Preferred for body text |
| #6B183C text on black | 1.82:1 | 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
#F1A8BF
oklch(80.8% 0.09 358.8)
-
Step 400
400
#E7779F
oklch(70.8% 0.144 358.8)
-
Step 500
500
#DC4E87
oklch(63.1% 0.184 359)
-
Step 600
600
#C72871
oklch(55.6% 0.2 358.8)
-
Step 700
700
#AB175F
oklch(49% 0.186 358.5)
-
Step 800
800
#8B194D
oklch(42.7% 0.153 359)
-
Step 900
900 (this color)
#6B183C
oklch(36.1% 0.12 358.9)
-
Step 950
950
#421326
oklch(27% 0.076 358.4)
#6B183C 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) | #2A2F3D | 0.134 |
| Deuteranopia (no green cones) | #403F3A | 0.122 |
| Tritanopia (no blue cones) | #740C27 | 0.037 |
| Achromatopsia (no color) | #393939 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B183C
#6B183C
oklch(36.1% 0.12 358.9)
- #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 #6B183C, 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 0.042
- Wine #80013F ΔE 0.046
- Velvet #750851 ΔE 0.046
- Wine Red #7B0323 ΔE 0.050
- Burgundy #610023 ΔE 0.052
- Red Purple #820747 ΔE 0.052
- Grape Purple #5D1451 ΔE 0.054
Use #6B183C 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.