#642F3D
Closest named color: Purple Brown (#673A3F). oklch(38% 0.078 4.7), rgb(100, 47, 61).
Aa
White text reads best on this color (10.41:1).
About this color
#642F3D is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.078 and its hue 5°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.030 away. White text reads best on it, at 10.41:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.01:1 |
| White text | 10.41:1 |
Values
| HEX | #642F3D |
| RGB | rgb(100, 47, 61) |
| HSL | hsl(344, 36%, 29%) |
| OKLCH | oklch(38% 0.078 4.7) |
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 #642F3D | 10.41:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #642F3D | 2.01:1 | Fails | Lc 10.1 | Not readable |
| #642F3D text on white | 10.41:1 | AAA | Lc 93.8 | Preferred for body text |
| #642F3D text on black | 2.01:1 | Fails | Lc -8.7 | 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
#F5E5E8
oklch(93.5% 0.018 4.5)
-
Step 200
200
#EDD1D6
oklch(88.5% 0.032 5.6)
-
Step 300
300
#E3B1BC
oklch(80.9% 0.06 3.8)
-
Step 400
400
#D28899
oklch(70.7% 0.093 4.7)
-
Step 500
500
#C56880
oklch(63.1% 0.121 4.7)
-
Step 600
600
#B04E69
oklch(55.6% 0.13 5)
-
Step 700
700
#973E58
oklch(49.1% 0.122 4.5)
-
Step 800
800
#7A3448
oklch(42.6% 0.1 4.3)
-
Step 900
900 (this color)
#642F3D
oklch(38% 0.078 4.7)
-
Step 950
950
#3A1B23
oklch(26.9% 0.05 4.5)
#642F3D 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) | #38393D | 0.086 |
| Deuteranopia (no green cones) | #46443C | 0.079 |
| Tritanopia (no blue cones) | #6C2A34 | 0.021 |
| Achromatopsia (no color) | #404040 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642F3D
#642F3D
oklch(38% 0.078 4.7)
- #004E47
#004E47
oklch(38.1% 0.067 184.6)
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 #642F3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.030
- Brownish Purple #76424E ΔE 0.065
- Chestnut #742802 ΔE 0.071
- Merlot #730039 ΔE 0.071
- Bordeaux #7B002C ΔE 0.072
- Wine Red #7B0323 ΔE 0.073
- Reddy Brown #6E1005 ΔE 0.075
- Wine #80013F ΔE 0.079
Use #642F3D 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.