#642C28
Closest named color: Purple Brown (#673A3F). oklch(36.9% 0.082 26), rgb(100, 44, 40).
Aa
White text reads best on this color (10.86:1).
About this color
#642C28 is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.082 and its hue 26°. 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 10.86:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.93:1 |
| White text | 10.86:1 |
Values
| HEX | #642C28 |
| RGB | rgb(100, 44, 40) |
| HSL | hsl(4, 43%, 27%) |
| OKLCH | oklch(36.9% 0.082 26) |
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 #642C28 | 10.86:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #642C28 | 1.93:1 | Fails | Lc 9.2 | Not readable |
| #642C28 text on white | 10.86:1 | AAA | Lc 94.7 | Preferred for body text |
| #642C28 text on black | 1.93:1 | Fails | Lc -7.9 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E6E4
oklch(93.7% 0.018 26.1)
-
Step 200
200
#EFD1CD
oklch(88.5% 0.034 26.8)
-
Step 300
300
#E6B2AC
oklch(80.9% 0.062 26.1)
-
Step 400
400
#D78880
oklch(70.6% 0.098 26.1)
-
Step 500
500
#CA6861
oklch(63% 0.126 25.5)
-
Step 600
600
#B64E47
oklch(55.7% 0.137 26.3)
-
Step 700
700
#9C3E39
oklch(49.1% 0.127 25.9)
-
Step 800
800
#7F342F
oklch(42.8% 0.105 26.3)
-
Step 900
900 (this color)
#642C28
oklch(36.9% 0.082 26)
-
Step 950
950
#3C1B19
oklch(26.9% 0.052 24.7)
#642C28 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) | #393627 | 0.087 |
| Deuteranopia (no green cones) | #474127 | 0.079 |
| Tritanopia (no blue cones) | #6D232B | 0.027 |
| Achromatopsia (no color) | #3D3D3D | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642C28
#642C28
oklch(36.9% 0.082 26)
- #004950
#004950
oklch(37% 0.063 205.8)
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 #642C28, 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 0.046
- Reddy Brown #6E1005 ΔE 0.052
- Blood #770001 ΔE 0.066
- Claret #680018 ΔE 0.066
- Wine Red #7B0323 ΔE 0.067
- Bordeaux #7B002C ΔE 0.073
- Maroon #800000 ΔE 0.073
Use #642C28 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.