#6B1437
Closest named color: Merlot (#730039). oklch(35.5% 0.123 1.8), rgb(107, 20, 55).
Aa
White text reads best on this color (11.79:1).
About this color
#6B1437 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.123 and its hue 2°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.023 away. White text reads best on it, at 11.79:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.123) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.78:1 |
| White text | 11.79:1 |
Values
| HEX | #6B1437 |
| RGB | rgb(107, 20, 55) |
| HSL | hsl(336, 69%, 25%) |
| OKLCH | oklch(35.5% 0.123 1.8) |
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 #6B1437 | 11.79:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #6B1437 | 1.78:1 | Fails | Lc 8.0 | Not readable |
| #6B1437 text on white | 11.79:1 | AAA | Lc 95.9 | Preferred for body text |
| #6B1437 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#FAE3E8
oklch(93.6% 0.026 2.8)
-
Step 200
200
#F7CCD6
oklch(88.5% 0.05 2.5)
-
Step 300
300
#F3A8BC
oklch(80.9% 0.091 1.9)
-
Step 400
400
#E9769A
oklch(70.7% 0.146 1.7)
-
Step 500
500
#DF4B81
oklch(63.1% 0.188 1.8)
-
Step 600
600
#CA236A
oklch(55.6% 0.204 1.9)
-
Step 700
700
#AE1059
oklch(49.1% 0.19 1.6)
-
Step 800
800
#8E1548
oklch(42.8% 0.158 2.3)
-
Step 900
900 (this color)
#6B1437
oklch(35.5% 0.123 1.8)
-
Step 950
950
#431224
oklch(27% 0.078 1.1)
#6B1437 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) | #292D38 | 0.138 |
| Deuteranopia (no green cones) | #403E35 | 0.125 |
| Tritanopia (no blue cones) | #750223 | 0.036 |
| Achromatopsia (no color) | #383838 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B1437
#6B1437
oklch(35.5% 0.123 1.8)
- #00463E
#00463E
oklch(35.4% 0.063 182.1)
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 #6B1437, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.023
- Bordeaux #7B002C ΔE 0.038
- Burgundy #610023 ΔE 0.044
- Wine Red #7B0323 ΔE 0.045
- Wine #80013F ΔE 0.047
- Claret #680018 ΔE 0.047
- Velvet #750851 ΔE 0.051
- Red Purple #820747 ΔE 0.055
Use #6B1437 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.