#631030
Closest named color: Burgundy (#610023). oklch(33.4% 0.117 3.4), rgb(99, 16, 48).
Aa
White text reads best on this color (12.74:1).
About this color
#631030 is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.117 and its hue 3°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.025 away. White text reads best on it, at 12.74:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.117) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.64:1 |
| White text | 12.74:1 |
Values
| HEX | #631030 |
| RGB | rgb(99, 16, 48) |
| HSL | hsl(337, 72%, 23%) |
| OKLCH | oklch(33.4% 0.117 3.4) |
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 #631030 | 12.74:1 | AAA | Lc -101.2 | Preferred for body text |
| Black text on #631030 | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #631030 text on white | 12.74:1 | AAA | Lc 97.6 | Preferred for body text |
| #631030 text on black | 1.64:1 | 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
#FDF2F4
oklch(97% 0.012 4.7)
-
Step 100
100
#FAE3E8
oklch(93.6% 0.026 2.8)
-
Step 200
200
#F6CCD6
oklch(88.4% 0.049 2.2)
-
Step 300
300
#F2A9BB
oklch(80.9% 0.089 3.1)
-
Step 400
400
#E77897
oklch(70.7% 0.14 3.6)
-
Step 500
500
#DD4F7E
oklch(63.1% 0.181 3.5)
-
Step 600
600
#C82B67
oklch(55.7% 0.195 3.6)
-
Step 700
700
#AC1A56
oklch(49.1% 0.182 3.3)
-
Step 800
800
#8C1A46
oklch(42.7% 0.151 3.6)
-
Step 900
900 (this color)
#631030
oklch(33.4% 0.117 3.4)
-
Step 950
950
#421323
oklch(26.9% 0.075 2.4)
#631030 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) | #252831 | 0.132 |
| Deuteranopia (no green cones) | #3B382E | 0.119 |
| Tritanopia (no blue cones) | #6C001E | 0.033 |
| Achromatopsia (no color) | #323232 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631030
#631030
oklch(33.4% 0.117 3.4)
- #004039
#004039
oklch(33.4% 0.059 182.8)
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 #631030, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.025
- Claret #680018 ΔE 0.036
- Merlot #730039 ΔE 0.039
- Bordeaux #7B002C ΔE 0.052
- Wine Red #7B0323 ΔE 0.056
- Grape Purple #5D1451 ΔE 0.060
- Reddy Brown #6E1005 ΔE 0.061
- Wine #80013F ΔE 0.067
Use #631030 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.