#642F2D
Closest named color: Purple Brown (#673A3F). oklch(37.6% 0.077 23.7), rgb(100, 47, 45).
Aa
White text reads best on this color (10.57:1).
About this color
#642F2D is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.077 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.035 away. White text reads best on it, at 10.57:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.98:1 |
| White text | 10.57:1 |
Values
| HEX | #642F2D |
| RGB | rgb(100, 47, 45) |
| HSL | hsl(2, 38%, 28%) |
| OKLCH | oklch(37.6% 0.077 23.7) |
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 #642F2D | 10.57:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #642F2D | 1.98:1 | Fails | Lc 9.8 | Not readable |
| #642F2D text on white | 10.57:1 | AAA | Lc 94.2 | Preferred for body text |
| #642F2D 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
#FBF4F3
oklch(97.2% 0.008 27.2)
-
Step 100
100
#F5E6E4
oklch(93.6% 0.017 26.7)
-
Step 200
200
#EED1CF
oklch(88.4% 0.033 22.5)
-
Step 300
300
#E4B3AF
oklch(81% 0.058 23.8)
-
Step 400
400
#D48A85
oklch(70.8% 0.092 23.9)
-
Step 500
500
#C76B66
oklch(63.2% 0.118 24.2)
-
Step 600
600
#B2504E
oklch(55.5% 0.129 23.3)
-
Step 700
700
#99403F
oklch(49% 0.12 23.2)
-
Step 800
800
#7C3634
oklch(42.7% 0.098 23.8)
-
Step 900
900 (this color)
#642F2D
oklch(37.6% 0.077 23.7)
-
Step 950
950
#3B1C1B
oklch(27% 0.049 22.8)
#642F2D 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) | #3B382D | 0.081 |
| Deuteranopia (no green cones) | #48432C | 0.076 |
| Tritanopia (no blue cones) | #6D272F | 0.025 |
| Achromatopsia (no color) | #3F3F3F | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642F2D
#642F2D
oklch(37.6% 0.077 23.7)
- #004B51
#004B51
oklch(37.6% 0.064 204)
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 #642F2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.035
- Chestnut #742802 ΔE 0.050
- Reddy Brown #6E1005 ΔE 0.060
- Wine Red #7B0323 ΔE 0.071
- Blood #770001 ΔE 0.073
- Claret #680018 ΔE 0.073
- Brownish Purple #76424E ΔE 0.074
- Bordeaux #7B002C ΔE 0.075
Use #642F2D 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.