#631D24
Closest named color: Claret (#680018). oklch(34.4% 0.101 18.5), rgb(99, 29, 36).
Aa
White text reads best on this color (12.12:1).
About this color
#631D24 is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.101 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.035 away. White text reads best on it, at 12.12:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.101) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.73:1 |
| White text | 12.12:1 |
Values
| HEX | #631D24 |
| RGB | rgb(99, 29, 36) |
| HSL | hsl(354, 55%, 25%) |
| OKLCH | oklch(34.4% 0.101 18.5) |
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 #631D24 | 12.12:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #631D24 | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #631D24 text on white | 12.12:1 | AAA | Lc 96.9 | Preferred for body text |
| #631D24 text on black | 1.73:1 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E4E4
oklch(93.5% 0.022 17.6)
-
Step 200
200
#F4CFCE
oklch(88.6% 0.042 19.8)
-
Step 300
300
#EEADAE
oklch(80.9% 0.077 17.9)
-
Step 400
400
#E28083
oklch(70.7% 0.121 18.7)
-
Step 500
500
#D65C64
oklch(63% 0.154 18.7)
-
Step 600
600
#C23D4C
oklch(55.6% 0.169 18.2)
-
Step 700
700
#A72E3D
oklch(49.1% 0.156 18.3)
-
Step 800
800
#872832
oklch(42.6% 0.129 18.6)
-
Step 900
900 (this color)
#631D24
oklch(34.4% 0.101 18.5)
-
Step 950
950
#40171A
oklch(26.9% 0.064 18)
#631D24 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) | #2F2C24 | 0.110 |
| Deuteranopia (no green cones) | #413B22 | 0.100 |
| Tritanopia (no blue cones) | #6D0E20 | 0.026 |
| Achromatopsia (no color) | #363636 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631D24
#631D24
oklch(34.4% 0.101 18.5)
- #004244
#004244
oklch(34.4% 0.059 198.2)
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 #631D24, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.035
- Reddy Brown #6E1005 ΔE 0.038
- Burgundy #610023 ΔE 0.043
- Blood #770001 ΔE 0.053
- Wine Red #7B0323 ΔE 0.053
- Bordeaux #7B002C ΔE 0.058
- Merlot #730039 ΔE 0.061
- Chestnut #742802 ΔE 0.062
Use #631D24 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.