#642D2B
Closest named color: Purple Brown (#673A3F). oklch(37.2% 0.08 23.8), rgb(100, 45, 43).
Aa
White text reads best on this color (10.75:1).
About this color
#642D2B is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.080 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.039 away. White text reads best on it, at 10.75:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.080) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.95:1 |
| White text | 10.75:1 |
Values
| HEX | #642D2B |
| RGB | rgb(100, 45, 43) |
| HSL | hsl(2, 40%, 28%) |
| OKLCH | oklch(37.2% 0.08 23.8) |
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 #642D2B | 10.75:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #642D2B | 1.95:1 | Fails | Lc 9.4 | Not readable |
| #642D2B text on white | 10.75:1 | AAA | Lc 94.5 | Preferred for body text |
| #642D2B text on black | 1.95:1 | Fails | Lc -8.1 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F5E6E4
oklch(93.6% 0.017 26.7)
-
Step 200
200
#EFD1CF
oklch(88.5% 0.034 22.4)
-
Step 300
300
#E5B2AE
oklch(80.9% 0.06 23.6)
-
Step 400
400
#D68883
oklch(70.6% 0.097 23.8)
-
Step 500
500
#C96965
oklch(63.1% 0.123 23.6)
-
Step 600
600
#B44E4C
oklch(55.5% 0.134 23.5)
-
Step 700
700
#9B3F3D
oklch(49.2% 0.124 24)
-
Step 800
800
#7E3433
oklch(42.7% 0.103 23.2)
-
Step 900
900 (this color)
#642D2B
oklch(37.2% 0.08 23.8)
-
Step 950
950
#3C1C1A
oklch(27.1% 0.051 24.7)
#642D2B 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) | #3A372B | 0.084 |
| Deuteranopia (no green cones) | #47422A | 0.079 |
| Tritanopia (no blue cones) | #6D242D | 0.026 |
| Achromatopsia (no color) | #3E3E3E | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642D2B
#642D2B
oklch(37.2% 0.08 23.8)
- #004A4F
#004A4F
oklch(37.3% 0.063 202.6)
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 #642D2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.039
- Chestnut #742802 ΔE 0.048
- Reddy Brown #6E1005 ΔE 0.056
- Wine Red #7B0323 ΔE 0.068
- Claret #680018 ΔE 0.068
- Blood #770001 ΔE 0.069
- Bordeaux #7B002C ΔE 0.073
- Maroon #800000 ΔE 0.075
Use #642D2B 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.