#64281B
Closest named color: Chestnut (#742802). oklch(36% 0.09 33.7), rgb(100, 40, 27).
Aa
White text reads best on this color (11.28:1).
About this color
#64281B is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.090 and its hue 34°. 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 11.28:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.090) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.86:1 |
| White text | 11.28:1 |
Values
| HEX | #64281B |
| RGB | rgb(100, 40, 27) |
| HSL | hsl(11, 57%, 25%) |
| OKLCH | oklch(36% 0.09 33.7) |
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 #64281B | 11.28:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #64281B | 1.86:1 | Fails | Lc 8.4 | Not readable |
| #64281B text on white | 11.28:1 | AAA | Lc 95.5 | Preferred for body text |
| #64281B text on black | 1.86:1 | 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
#FBF3F1
oklch(97% 0.009 34.3)
-
Step 100
100
#F7E6E1
oklch(93.7% 0.02 37)
-
Step 200
200
#F1D1C9
oklch(88.5% 0.038 34.3)
-
Step 300
300
#E9B1A4
oklch(80.8% 0.068 33.4)
-
Step 400
400
#DB8773
oklch(70.7% 0.108 34.2)
-
Step 500
500
#CF664F
oklch(63.1% 0.138 33.7)
-
Step 600
600
#BB4A32
oklch(55.6% 0.151 33.7)
-
Step 700
700
#A03B25
oklch(49.1% 0.139 33.9)
-
Step 800
800
#823120
oklch(42.6% 0.116 33.5)
-
Step 900
900 (this color)
#64281B
oklch(36% 0.09 33.7)
-
Step 950
950
#3E1B13
oklch(27.1% 0.057 34.1)
#64281B 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) | #383219 | 0.091 |
| Deuteranopia (no green cones) | #473F1A | 0.082 |
| Tritanopia (no blue cones) | #6E1C25 | 0.036 |
| Achromatopsia (no color) | #3B3B3B | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64281B
#64281B
oklch(36% 0.09 33.7)
- #004551
#004551
oklch(35.9% 0.063 214.1)
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 #64281B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.039
- Reddy Brown #6E1005 ΔE 0.041
- Blood #770001 ΔE 0.057
- Purple Brown #673A3F ΔE 0.059
- Claret #680018 ΔE 0.060
- Wine Red #7B0323 ΔE 0.067
- Maroon #800000 ΔE 0.067
- Burgundy #610023 ΔE 0.073
Use #64281B 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.