#642D3E
Closest named color: Purple Brown (#673A3F). oklch(37.7% 0.082 2.2), rgb(100, 45, 62).
Aa
White text reads best on this color (10.56:1).
About this color
#642D3E is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.082 and its hue 2°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.036 away. White text reads best on it, at 10.56:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.98:1 |
| White text | 10.56:1 |
Values
| HEX | #642D3E |
| RGB | rgb(100, 45, 62) |
| HSL | hsl(341, 38%, 28%) |
| OKLCH | oklch(37.7% 0.082 2.2) |
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 #642D3E | 10.56:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #642D3E | 1.98:1 | Fails | Lc 9.8 | Not readable |
| #642D3E text on white | 10.56:1 | AAA | Lc 94.1 | Preferred for body text |
| #642D3E text on black | 1.98:1 | Fails | Lc -8.4 | 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
#FBF3F5
oklch(97.1% 0.009 0.1)
-
Step 100
100
#F5E5E9
oklch(93.6% 0.018 0.4)
-
Step 200
200
#EED0D7
oklch(88.5% 0.035 2)
-
Step 300
300
#E4B1BD
oklch(81% 0.061 2.9)
-
Step 400
400
#D4869B
oklch(70.7% 0.099 2.5)
-
Step 500
500
#C66683
oklch(63% 0.126 2.1)
-
Step 600
600
#B14C6D
oklch(55.6% 0.135 2)
-
Step 700
700
#983C5B
oklch(49.1% 0.127 1.9)
-
Step 800
800
#7C324A
oklch(42.7% 0.106 2.3)
-
Step 900
900 (this color)
#642D3E
oklch(37.7% 0.082 2.2)
-
Step 950
950
#3B1B24
oklch(27.1% 0.052 3.2)
#642D3E 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) | #36383E | 0.090 |
| Deuteranopia (no green cones) | #44433D | 0.084 |
| Tritanopia (no blue cones) | #6C2833 | 0.023 |
| Achromatopsia (no color) | #3F3F3F | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642D3E
#642D3E
oklch(37.7% 0.082 2.2)
- #004D44
#004D44
oklch(37.7% 0.068 181.7)
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 #642D3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.036
- Merlot #730039 ΔE 0.066
- Brownish Purple #76424E ΔE 0.069
- Bordeaux #7B002C ΔE 0.069
- Wine Red #7B0323 ΔE 0.071
- Chestnut #742802 ΔE 0.074
- Grape Purple #5D1451 ΔE 0.074
- Reddy Brown #6E1005 ΔE 0.075
Use #642D3E 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.