#642C29
Closest named color: Purple Brown (#673A3F). oklch(37% 0.082 25), rgb(100, 44, 41).
Aa
White text reads best on this color (10.85:1).
About this color
#642C29 is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.082 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.042 away. White text reads best on it, at 10.85:1.
| 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 | 10.85:1 |
Values
| HEX | #642C29 |
| RGB | rgb(100, 44, 41) |
| HSL | hsl(3, 42%, 28%) |
| OKLCH | oklch(37% 0.082 25) |
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 #642C29 | 10.85:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #642C29 | 1.93:1 | Fails | Lc 9.2 | Not readable |
| #642C29 text on white | 10.85:1 | AAA | Lc 94.7 | Preferred for body text |
| #642C29 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F6E6E4
oklch(93.7% 0.018 26.1)
-
Step 200
200
#EFD1CE
oklch(88.5% 0.034 24.6)
-
Step 300
300
#E6B2AD
oklch(80.9% 0.061 24.8)
-
Step 400
400
#D78882
oklch(70.7% 0.098 24.6)
-
Step 500
500
#CA6862
oklch(63% 0.126 24.9)
-
Step 600
600
#B54E49
oklch(55.6% 0.135 25.2)
-
Step 700
700
#9C3E3A
oklch(49.1% 0.127 25.3)
-
Step 800
800
#7F3431
oklch(42.8% 0.105 24.8)
-
Step 900
900 (this color)
#642C29
oklch(37% 0.082 25)
-
Step 950
950
#3C1B19
oklch(26.9% 0.052 24.7)
#642C29 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) | #393628 | 0.087 |
| Deuteranopia (no green cones) | #474228 | 0.081 |
| Tritanopia (no blue cones) | #6D232C | 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°).
- #642C29
#642C29
oklch(37% 0.082 25)
- #00494F
#00494F
oklch(37% 0.063 204.2)
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 #642C29, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.042
- Chestnut #742802 ΔE 0.047
- Reddy Brown #6E1005 ΔE 0.053
- Claret #680018 ΔE 0.066
- Blood #770001 ΔE 0.066
- Wine Red #7B0323 ΔE 0.067
- Bordeaux #7B002C ΔE 0.072
- Maroon #800000 ΔE 0.074
Use #642C29 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.