#631518
Closest named color: Claret (#680018). oklch(33.3% 0.111 23.7), rgb(99, 21, 24).
Aa
White text reads best on this color (12.71:1).
About this color
#631518 is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.111 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.024 away. White text reads best on it, at 12.71:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.111) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.65:1 |
| White text | 12.71:1 |
Values
| HEX | #631518 |
| RGB | rgb(99, 21, 24) |
| HSL | hsl(358, 65%, 24%) |
| OKLCH | oklch(33.3% 0.111 23.7) |
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 #631518 | 12.71:1 | AAA | Lc -101.2 | Preferred for body text |
| Black text on #631518 | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #631518 text on white | 12.71:1 | AAA | Lc 97.7 | Preferred for body text |
| #631518 text on black | 1.65:1 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FAE4E2
oklch(93.6% 0.024 23.9)
-
Step 200
200
#F6CECB
oklch(88.5% 0.046 23.1)
-
Step 300
300
#F2ACA7
oklch(80.9% 0.083 23.6)
-
Step 400
400
#E87D78
oklch(70.8% 0.133 23.8)
-
Step 500
500
#DD5655
oklch(63% 0.17 23.7)
-
Step 600
600
#C9353A
oklch(55.7% 0.185 23.9)
-
Step 700
700
#AD252D
oklch(49.1% 0.172 23.6)
-
Step 800
800
#8C2226
oklch(42.7% 0.141 23.7)
-
Step 900
900 (this color)
#631518
oklch(33.3% 0.111 23.7)
-
Step 950
950
#431615
oklch(27.1% 0.07 24.2)
#631518 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) | #2C2817 | 0.120 |
| Deuteranopia (no green cones) | #3F3915 | 0.111 |
| Tritanopia (no blue cones) | #6E0017 | 0.028 |
| Achromatopsia (no color) | #333333 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631518
#631518
oklch(33.3% 0.111 23.7)
- #003E43
#003E43
oklch(33.2% 0.057 203.8)
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 #631518, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.024
- Reddy Brown #6E1005 ΔE 0.028
- Burgundy #610023 ΔE 0.037
- Blood #770001 ΔE 0.045
- Wine Red #7B0323 ΔE 0.055
- Bordeaux #7B002C ΔE 0.062
- Maroon #800000 ΔE 0.064
- Chestnut #742802 ΔE 0.064
Use #631518 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.