#631A35
Closest named color: Burgundy (#610023). oklch(34.6% 0.107 2), rgb(99, 26, 53).
Aa
White text reads best on this color (12.14:1).
About this color
#631A35 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.107 and its hue 2°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.039 away. White text reads best on it, at 12.14:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.107) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.72:1 |
| White text | 12.14:1 |
Values
| HEX | #631A35 |
| RGB | rgb(99, 26, 53) |
| HSL | hsl(338, 58%, 25%) |
| OKLCH | oklch(34.6% 0.107 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 #631A35 | 12.14:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #631A35 | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #631A35 text on white | 12.14:1 | AAA | Lc 96.9 | Preferred for body text |
| #631A35 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
#F8E4E8
oklch(93.6% 0.022 3.8)
-
Step 200
200
#F4CDD7
oklch(88.4% 0.046 0.9)
-
Step 300
300
#EDABBC
oklch(80.8% 0.08 2.1)
-
Step 400
400
#E17C9A
oklch(70.6% 0.129 1.9)
-
Step 500
500
#D65782
oklch(63.2% 0.164 1.9)
-
Step 600
600
#C1376B
oklch(55.6% 0.178 2.1)
-
Step 700
700
#A62859
oklch(49.1% 0.165 2.2)
-
Step 800
800
#872349
oklch(42.7% 0.138 2)
-
Step 900
900 (this color)
#631A35
oklch(34.6% 0.107 2)
-
Step 950
950
#401624
oklch(27% 0.067 1.8)
#631A35 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) | #292D36 | 0.120 |
| Deuteranopia (no green cones) | #3D3B33 | 0.109 |
| Tritanopia (no blue cones) | #6C1025 | 0.031 |
| Achromatopsia (no color) | #363636 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631A35
#631A35
oklch(34.6% 0.107 2)
- #00443C
#00443C
oklch(34.7% 0.062 181.8)
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 #631A35, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.039
- Merlot #730039 ΔE 0.041
- Claret #680018 ΔE 0.046
- Bordeaux #7B002C ΔE 0.053
- Wine Red #7B0323 ΔE 0.057
- Grape Purple #5D1451 ΔE 0.057
- Reddy Brown #6E1005 ΔE 0.063
- Velvet #750851 ΔE 0.065
Use #631A35 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.