#6B1643
Closest named color: Merlot (#730039). oklch(36.2% 0.126 353.1), rgb(107, 22, 67).
Aa
White text reads best on this color (11.53:1).
About this color
#6B1643 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.126 and its hue 353°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.027 away. White text reads best on it, at 11.53:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.126) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.82:1 |
| White text | 11.53:1 |
Values
| HEX | #6B1643 |
| RGB | rgb(107, 22, 67) |
| HSL | hsl(328, 66%, 25%) |
| OKLCH | oklch(36.2% 0.126 353.1) |
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 #6B1643 | 11.53:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #6B1643 | 1.82:1 | Fails | Lc 8.4 | Not readable |
| #6B1643 text on white | 11.53:1 | AAA | Lc 95.5 | Preferred for body text |
| #6B1643 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
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#FAE3EB
oklch(93.7% 0.027 354.5)
-
Step 200
200
#F6CCDC
oklch(88.6% 0.052 353.3)
-
Step 300
300
#F1A7C6
oklch(80.8% 0.095 352.6)
-
Step 400
400
#E675A8
oklch(70.6% 0.15 353.2)
-
Step 500
500
#DB4B93
oklch(63.1% 0.192 353.1)
-
Step 600
600
#C7227D
oklch(55.6% 0.21 353.4)
-
Step 700
700
#AB106A
oklch(49.1% 0.195 353)
-
Step 800
800
#8B1456
oklch(42.7% 0.161 353.3)
-
Step 900
900 (this color)
#6B1643
oklch(36.2% 0.126 353.1)
-
Step 950
950
#42122A
oklch(27% 0.08 352.8)
#6B1643 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) | #262F44 | 0.141 |
| Deuteranopia (no green cones) | #3E3F41 | 0.126 |
| Tritanopia (no blue cones) | #740E2A | 0.045 |
| Achromatopsia (no color) | #393939 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B1643
#6B1643
oklch(36.2% 0.126 353.1)
- #00493A
#00493A
oklch(36.1% 0.069 173.1)
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 #6B1643, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.027
- Velvet #750851 ΔE 0.035
- Grape Purple #5D1451 ΔE 0.043
- Wine #80013F ΔE 0.045
- Rich Purple #720058 ΔE 0.046
- Red Purple #820747 ΔE 0.049
- Bordeaux #7B002C ΔE 0.050
- Burgundy #610023 ΔE 0.059
Use #6B1643 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.