#642B2B
Closest named color: Purple Brown (#673A3F). oklch(36.8% 0.083 22), rgb(100, 43, 43).
Aa
White text reads best on this color (10.92:1).
About this color
#642B2B is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.083 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.043 away. White text reads best on it, at 10.92:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.92:1 |
| White text | 10.92:1 |
Values
| HEX | #642B2B |
| RGB | rgb(100, 43, 43) |
| HSL | hsl(0, 40%, 28%) |
| OKLCH | oklch(36.8% 0.083 22) |
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 #642B2B | 10.92:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #642B2B | 1.92:1 | Fails | Lc 9.1 | Not readable |
| #642B2B text on white | 10.92:1 | AAA | Lc 94.9 | Preferred for body text |
| #642B2B text on black | 1.92:1 | Fails | Lc -7.8 | 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
#F6E5E4
oklch(93.5% 0.019 21.6)
-
Step 200
200
#EFD1CF
oklch(88.5% 0.034 22.4)
-
Step 300
300
#E6B1AF
oklch(80.8% 0.062 21)
-
Step 400
400
#D88785
oklch(70.7% 0.1 21.4)
-
Step 500
500
#CB6766
oklch(63.1% 0.127 21.9)
-
Step 600
600
#B64C4D
oklch(55.5% 0.138 22.1)
-
Step 700
700
#9C3D3E
oklch(49.1% 0.127 22.4)
-
Step 800
800
#7F3334
oklch(42.7% 0.106 21.9)
-
Step 900
900 (this color)
#642B2B
oklch(36.8% 0.083 22)
-
Step 950
950
#3C1B1B
oklch(26.9% 0.052 21.1)
#642B2B 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) | #38352B | 0.088 |
| Deuteranopia (no green cones) | #46412A | 0.082 |
| Tritanopia (no blue cones) | #6D222B | 0.025 |
| Achromatopsia (no color) | #3D3D3D | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642B2B
#642B2B
oklch(36.8% 0.083 22)
- #00494D
#00494D
oklch(36.9% 0.063 201.1)
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 #642B2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.043
- Chestnut #742802 ΔE 0.050
- Reddy Brown #6E1005 ΔE 0.053
- Claret #680018 ΔE 0.064
- Wine Red #7B0323 ΔE 0.064
- Blood #770001 ΔE 0.066
- Bordeaux #7B002C ΔE 0.069
- Burgundy #610023 ΔE 0.072
Use #642B2B 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.