#63121D
Closest named color: Claret (#680018). oklch(33.1% 0.113 19), rgb(99, 18, 29).
Aa
White text reads best on this color (12.84:1).
About this color
#63121D is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.113 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.019 away. White text reads best on it, at 12.84:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.113) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.63:1 |
| White text | 12.84:1 |
Values
| HEX | #63121D |
| RGB | rgb(99, 18, 29) |
| HSL | hsl(352, 69%, 23%) |
| OKLCH | oklch(33.1% 0.113 19) |
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 #63121D | 12.84:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #63121D | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #63121D text on white | 12.84:1 | AAA | Lc 97.8 | Preferred for body text |
| #63121D 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
#F7CDCD
oklch(88.4% 0.048 18.1)
-
Step 300
300
#F3ABAB
oklch(81% 0.085 19.1)
-
Step 400
400
#E97B7F
oklch(70.8% 0.136 18.8)
-
Step 500
500
#DE535E
oklch(63% 0.173 19)
-
Step 600
600
#CA3145
oklch(55.7% 0.188 19.1)
-
Step 700
700
#AE2136
oklch(49.1% 0.175 19.3)
-
Step 800
800
#8D1F2D
oklch(42.7% 0.145 19.3)
-
Step 900
900 (this color)
#63121D
oklch(33.1% 0.113 19)
-
Step 950
950
#431518
oklch(27.1% 0.071 19.4)
#63121D 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) | #2A271D | 0.124 |
| Deuteranopia (no green cones) | #3E381B | 0.114 |
| Tritanopia (no blue cones) | #6D0017 | 0.024 |
| Achromatopsia (no color) | #323232 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63121D
#63121D
oklch(33.1% 0.113 19)
- #003E40
#003E40
oklch(33% 0.056 198.4)
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 #63121D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.019
- Burgundy #610023 ΔE 0.028
- Reddy Brown #6E1005 ΔE 0.034
- Blood #770001 ΔE 0.048
- Wine Red #7B0323 ΔE 0.053
- Bordeaux #7B002C ΔE 0.057
- Merlot #730039 ΔE 0.060
- Maroon #800000 ΔE 0.066
Use #63121D 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.