#642C39
Closest named color: Purple Brown (#673A3F). oklch(37.4% 0.082 7.3), rgb(100, 44, 57).
Aa
White text reads best on this color (10.70:1).
About this color
#642C39 is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.082 and its hue 7°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.037 away. White text reads best on it, at 10.70:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.96:1 |
| White text | 10.70:1 |
Values
| HEX | #642C39 |
| RGB | rgb(100, 44, 57) |
| HSL | hsl(346, 39%, 28%) |
| OKLCH | oklch(37.4% 0.082 7.3) |
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 #642C39 | 10.70:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #642C39 | 1.96:1 | Fails | Lc 9.5 | Not readable |
| #642C39 text on white | 10.70:1 | AAA | Lc 94.4 | Preferred for body text |
| #642C39 text on black | 1.96:1 | Fails | Lc -8.2 | 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
#F5E5E8
oklch(93.5% 0.018 4.5)
-
Step 200
200
#EED0D5
oklch(88.4% 0.034 6.4)
-
Step 300
300
#E5B1B9
oklch(81% 0.061 8.2)
-
Step 400
400
#D58696
oklch(70.6% 0.099 6.7)
-
Step 500
500
#C8667C
oklch(63.1% 0.126 7.1)
-
Step 600
600
#B34B65
oklch(55.5% 0.137 7.1)
-
Step 700
700
#9A3C54
oklch(49.2% 0.127 7.2)
-
Step 800
800
#7D3245
oklch(42.7% 0.106 6.9)
-
Step 900
900 (this color)
#642C39
oklch(37.4% 0.082 7.3)
-
Step 950
950
#3B1B22
oklch(27% 0.051 7.1)
#642C39 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) | #363739 | 0.091 |
| Deuteranopia (no green cones) | #454238 | 0.083 |
| Tritanopia (no blue cones) | #6C2631 | 0.021 |
| Achromatopsia (no color) | #3E3E3E | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642C39
#642C39
oklch(37.4% 0.082 7.3)
- #004C47
#004C47
oklch(37.5% 0.065 187.3)
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 #642C39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.037
- Merlot #730039 ΔE 0.067
- Wine Red #7B0323 ΔE 0.067
- Bordeaux #7B002C ΔE 0.067
- Chestnut #742802 ΔE 0.068
- Reddy Brown #6E1005 ΔE 0.068
- Claret #680018 ΔE 0.071
- Brownish Purple #76424E ΔE 0.072
Use #642C39 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.