#631939
Closest named color: Merlot (#730039). oklch(34.6% 0.11 358.2), rgb(99, 25, 57).
Aa
White text reads best on this color (12.14:1).
About this color
#631939 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.110 and its hue 358°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.038 away. White text reads best on it, at 12.14:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.110) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.72:1 |
| White text | 12.14:1 |
Values
| HEX | #631939 |
| RGB | rgb(99, 25, 57) |
| HSL | hsl(334, 60%, 24%) |
| OKLCH | oklch(34.6% 0.11 358.2) |
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 #631939 | 12.14:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #631939 | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #631939 text on white | 12.14:1 | AAA | Lc 96.9 | Preferred for body text |
| #631939 text on black | 1.72:1 | 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
#FCF3F5
oklch(97.2% 0.01 2)
-
Step 100
100
#F8E4EA
oklch(93.7% 0.023 357.4)
-
Step 200
200
#F4CDD9
oklch(88.5% 0.046 357.6)
-
Step 300
300
#EDABC0
oklch(80.9% 0.082 358.3)
-
Step 400
400
#E17BA0
oklch(70.6% 0.132 357.9)
-
Step 500
500
#D65589
oklch(63.1% 0.169 358)
-
Step 600
600
#C13572
oklch(55.7% 0.183 358.5)
-
Step 700
700
#A62560
oklch(49.1% 0.171 358.1)
-
Step 800
800
#87224E
oklch(42.8% 0.141 358.5)
-
Step 900
900 (this color)
#631939
oklch(34.6% 0.11 358.2)
-
Step 950
950
#401526
oklch(27% 0.07 358.2)
#631939 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) | #282D3A | 0.122 |
| Deuteranopia (no green cones) | #3C3B37 | 0.111 |
| Tritanopia (no blue cones) | #6C1026 | 0.035 |
| Achromatopsia (no color) | #363636 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631939
#631939
oklch(34.6% 0.11 358.2)
- #00443A
#00443A
oklch(34.6% 0.063 178.9)
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 #631939, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.038
- Burgundy #610023 ΔE 0.042
- Grape Purple #5D1451 ΔE 0.049
- Claret #680018 ΔE 0.051
- Bordeaux #7B002C ΔE 0.055
- Velvet #750851 ΔE 0.059
- Wine Red #7B0323 ΔE 0.060
- Wine #80013F ΔE 0.063
Use #631939 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.