#631F2D
Closest named color: Claret (#680018). oklch(34.9% 0.098 11.4), rgb(99, 31, 45).
Aa
White text reads best on this color (11.90:1).
About this color
#631F2D is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.098 and its hue 11°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.042 away. White text reads best on it, at 11.90:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.098) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.76:1 |
| White text | 11.90:1 |
Values
| HEX | #631F2D |
| RGB | rgb(99, 31, 45) |
| HSL | hsl(348, 52%, 25%) |
| OKLCH | oklch(34.9% 0.098 11.4) |
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 #631F2D | 11.90:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #631F2D | 1.76:1 | Fails | Lc 7.3 | Not readable |
| #631F2D text on white | 11.90:1 | AAA | Lc 96.6 | Preferred for body text |
| #631F2D text on black | 1.76:1 | 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
#FCF3F4
oklch(97.1% 0.01 9.5)
-
Step 100
100
#F8E4E6
oklch(93.5% 0.022 10.6)
-
Step 200
200
#F3CFD2
oklch(88.6% 0.041 12.3)
-
Step 300
300
#ECADB4
oklch(80.8% 0.074 11.5)
-
Step 400
400
#DF808E
oklch(70.6% 0.118 11.1)
-
Step 500
500
#D45D72
oklch(63.2% 0.151 11.6)
-
Step 600
600
#BF3F5A
oklch(55.6% 0.164 11.7)
-
Step 700
700
#A42F4A
oklch(49% 0.153 11.3)
-
Step 800
800
#85293D
oklch(42.6% 0.126 11.3)
-
Step 900
900 (this color)
#631F2D
oklch(34.9% 0.098 11.4)
-
Step 950
950
#3F181F
oklch(27% 0.061 10.9)
#631F2D 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) | #2F2E2D | 0.108 |
| Deuteranopia (no green cones) | #403C2B | 0.100 |
| Tritanopia (no blue cones) | #6C1424 | 0.024 |
| Achromatopsia (no color) | #373737 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631F2D
#631F2D
oklch(34.9% 0.098 11.4)
- #004442
#004442
oklch(34.9% 0.06 191.4)
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 #631F2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.042
- Burgundy #610023 ΔE 0.044
- Reddy Brown #6E1005 ΔE 0.049
- Merlot #730039 ΔE 0.053
- Wine Red #7B0323 ΔE 0.054
- Bordeaux #7B002C ΔE 0.055
- Blood #770001 ΔE 0.061
- Purple Brown #673A3F ΔE 0.066
Use #631F2D 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.