#642F40
Closest named color: Purple Brown (#673A3F). oklch(38.1% 0.079 1.2), rgb(100, 47, 64).
Aa
White text reads best on this color (10.38:1).
About this color
#642F40 is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.079 and its hue 1°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.032 away. White text reads best on it, at 10.38:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.079) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.02:1 |
| White text | 10.38:1 |
Values
| HEX | #642F40 |
| RGB | rgb(100, 47, 64) |
| HSL | hsl(341, 36%, 29%) |
| OKLCH | oklch(38.1% 0.079 1.2) |
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 #642F40 | 10.38:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #642F40 | 2.02:1 | Fails | Lc 10.2 | Not readable |
| #642F40 text on white | 10.38:1 | AAA | Lc 93.8 | Preferred for body text |
| #642F40 text on black | 2.02:1 | Fails | Lc -8.8 | 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
#FAF3F5
oklch(97% 0.008 357.8)
-
Step 100
100
#F4E5E9
oklch(93.5% 0.017 359.3)
-
Step 200
200
#EDD1D8
oklch(88.6% 0.033 0.9)
-
Step 300
300
#E2B1BE
oklch(80.8% 0.059 0.9)
-
Step 400
400
#D2879D
oklch(70.7% 0.096 0.8)
-
Step 500
500
#C46885
oklch(63.1% 0.121 1)
-
Step 600
600
#AF4E6E
oklch(55.6% 0.131 1.5)
-
Step 700
700
#963E5C
oklch(49.1% 0.122 1.3)
-
Step 800
800
#7A344B
oklch(42.7% 0.101 1.6)
-
Step 900
900 (this color)
#642F40
oklch(38.1% 0.079 1.2)
-
Step 950
950
#3A1B25
oklch(26.9% 0.051 0.5)
#642F40 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) | #373A41 | 0.087 |
| Deuteranopia (no green cones) | #45443F | 0.080 |
| Tritanopia (no blue cones) | #6C2B35 | 0.023 |
| Achromatopsia (no color) | #404040 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642F40
#642F40
oklch(38.1% 0.079 1.2)
- #004E45
#004E45
oklch(38% 0.068 181.8)
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 #642F40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.032
- Brownish Purple #76424E ΔE 0.065
- Merlot #730039 ΔE 0.070
- Bordeaux #7B002C ΔE 0.073
- Wine Red #7B0323 ΔE 0.074
- Chestnut #742802 ΔE 0.076
- Grape Purple #5D1451 ΔE 0.077
- Wine #80013F ΔE 0.078
Use #642F40 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.