#642B38
Closest named color: Purple Brown (#673A3F). oklch(37.2% 0.083 7.7), rgb(100, 43, 56).
Aa
White text reads best on this color (10.79:1).
About this color
#642B38 is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.083 and its hue 8°. 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 10.79:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.94:1 |
| White text | 10.79:1 |
Values
| HEX | #642B38 |
| RGB | rgb(100, 43, 56) |
| HSL | hsl(346, 40%, 28%) |
| OKLCH | oklch(37.2% 0.083 7.7) |
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 #642B38 | 10.79:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #642B38 | 1.94:1 | Fails | Lc 9.3 | Not readable |
| #642B38 text on white | 10.79:1 | AAA | Lc 94.6 | Preferred for body text |
| #642B38 text on black | 1.94:1 | Fails | Lc -8.0 | 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
#FBF3F4
oklch(97.1% 0.009 8.5)
-
Step 100
100
#F5E5E7
oklch(93.5% 0.018 8.8)
-
Step 200
200
#EFD0D5
oklch(88.5% 0.035 6.8)
-
Step 300
300
#E5B0B9
oklch(80.8% 0.063 7.2)
-
Step 400
400
#D68695
oklch(70.7% 0.1 7.7)
-
Step 500
500
#C9657B
oklch(63% 0.128 7.5)
-
Step 600
600
#B44A64
oklch(55.5% 0.139 7.6)
-
Step 700
700
#9B3B53
oklch(49.2% 0.129 7.8)
-
Step 800
800
#7E3144
oklch(42.7% 0.108 7.6)
-
Step 900
900 (this color)
#642B38
oklch(37.2% 0.083 7.7)
-
Step 950
950
#3C1A22
oklch(27% 0.054 6.5)
#642B38 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) | #363638 | 0.091 |
| Deuteranopia (no green cones) | #444237 | 0.086 |
| Tritanopia (no blue cones) | #6C2530 | 0.021 |
| Achromatopsia (no color) | #3D3D3D | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642B38
#642B38
oklch(37.2% 0.083 7.7)
- #004B46
#004B46
oklch(37.2% 0.065 187.2)
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 #642B38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.039
- Merlot #730039 ΔE 0.065
- Wine Red #7B0323 ΔE 0.065
- Bordeaux #7B002C ΔE 0.066
- Reddy Brown #6E1005 ΔE 0.066
- Chestnut #742802 ΔE 0.067
- Claret #680018 ΔE 0.068
- Burgundy #610023 ΔE 0.071
Use #642B38 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.