#63131A
Closest named color: Claret (#680018). oklch(33.1% 0.112 21.5), rgb(99, 19, 26).
Aa
White text reads best on this color (12.81:1).
About this color
#63131A is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.112 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.020 away. White text reads best on it, at 12.81:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.112) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.63:1 |
| White text | 12.81:1 |
Values
| HEX | #63131A |
| RGB | rgb(99, 19, 26) |
| HSL | hsl(355, 68%, 23%) |
| OKLCH | oklch(33.1% 0.112 21.5) |
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 #63131A | 12.81:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #63131A | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #63131A text on white | 12.81:1 | AAA | Lc 97.8 | Preferred for body text |
| #63131A text on black | 1.63:1 | 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
#FAE4E3
oklch(93.6% 0.024 20.7)
-
Step 200
200
#F7CECC
oklch(88.6% 0.047 21.4)
-
Step 300
300
#F2ABA9
oklch(80.8% 0.084 20.9)
-
Step 400
400
#E87C7B
oklch(70.7% 0.134 21.6)
-
Step 500
500
#DE5559
oklch(63.1% 0.171 21.7)
-
Step 600
600
#CA323F
oklch(55.7% 0.188 21.5)
-
Step 700
700
#AE2231
oklch(49.1% 0.174 21.5)
-
Step 800
800
#8D2029
oklch(42.7% 0.144 21.7)
-
Step 900
900 (this color)
#63131A
oklch(33.1% 0.112 21.5)
-
Step 950
950
#431516
oklch(27% 0.071 21.9)
#63131A 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) | #2B271A | 0.122 |
| Deuteranopia (no green cones) | #3F3817 | 0.112 |
| Tritanopia (no blue cones) | #6D0016 | 0.025 |
| Achromatopsia (no color) | #323232 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63131A
#63131A
oklch(33.1% 0.112 21.5)
- #003E42
#003E42
oklch(33.1% 0.056 202)
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 #63131A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.020
- Reddy Brown #6E1005 ΔE 0.031
- Burgundy #610023 ΔE 0.032
- Blood #770001 ΔE 0.046
- Wine Red #7B0323 ΔE 0.054
- Bordeaux #7B002C ΔE 0.060
- Merlot #730039 ΔE 0.064
- Maroon #800000 ΔE 0.065
Use #63131A 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.