#63301E
Closest named color: Chestnut (#742802). oklch(37.3% 0.079 39.8), rgb(99, 48, 30).
Aa
White text reads best on this color (10.64:1).
About this color
#63301E is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.079 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.039 away. White text reads best on it, at 10.64:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.97:1 |
| White text | 10.64:1 |
Values
| HEX | #63301E |
| RGB | rgb(99, 48, 30) |
| HSL | hsl(16, 53%, 25%) |
| OKLCH | oklch(37.3% 0.079 39.8) |
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 #63301E | 10.64:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #63301E | 1.97:1 | Fails | Lc 9.6 | Not readable |
| #63301E text on white | 10.64:1 | AAA | Lc 94.3 | Preferred for body text |
| #63301E text on black | 1.97:1 | Fails | Lc -8.2 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F5E6E1
oklch(93.5% 0.018 39.4)
-
Step 200
200
#EED2C9
oklch(88.5% 0.034 38.6)
-
Step 300
300
#E3B4A4
oklch(80.8% 0.059 39.6)
-
Step 400
400
#D48C73
oklch(70.7% 0.095 39.9)
-
Step 500
500
#C76E4E
oklch(63.2% 0.122 40.3)
-
Step 600
600
#B25432
oklch(55.7% 0.132 39.9)
-
Step 700
700
#994324
oklch(49.1% 0.124 39.6)
-
Step 800
800
#7C3820
oklch(42.7% 0.102 39.5)
-
Step 900
900 (this color)
#63301E
oklch(37.3% 0.079 39.8)
-
Step 950
950
#3B1D13
oklch(27% 0.05 39.1)
#63301E 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) | #3E371C | 0.075 |
| Deuteranopia (no green cones) | #4A431D | 0.070 |
| Tritanopia (no blue cones) | #6D262C | 0.040 |
| Achromatopsia (no color) | #3E3E3E | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63301E
#63301E
oklch(37.3% 0.079 39.8)
- #004859
#004859
oklch(37.2% 0.068 220.3)
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 #63301E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.039
- Purple Brown #673A3F ΔE 0.048
- Reddy Brown #6E1005 ΔE 0.058
- Mud Brown #60460F ΔE 0.068
- Blood #770001 ΔE 0.072
- Maroon #800000 ΔE 0.078
- Claret #680018 ΔE 0.078
- Wine Red #7B0323 ΔE 0.080
Use #63301E 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.