#642F28
Closest named color: Purple Brown (#673A3F). oklch(37.5% 0.078 29), rgb(100, 47, 40).
Aa
White text reads best on this color (10.61:1).
About this color
#642F28 is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.078 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.039 away. White text reads best on it, at 10.61:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.97:1 |
| White text | 10.61:1 |
Values
| HEX | #642F28 |
| RGB | rgb(100, 47, 40) |
| HSL | hsl(7, 43%, 27%) |
| OKLCH | oklch(37.5% 0.078 29) |
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 #642F28 | 10.61:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #642F28 | 1.97:1 | Fails | Lc 9.7 | Not readable |
| #642F28 text on white | 10.61:1 | AAA | Lc 94.2 | Preferred for body text |
| #642F28 text on black | 1.97:1 | Fails | Lc -8.3 | 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
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F5E6E3
oklch(93.6% 0.017 31.1)
-
Step 200
200
#EED2CD
oklch(88.6% 0.032 29.8)
-
Step 300
300
#E4B3AB
oklch(80.9% 0.059 29.1)
-
Step 400
400
#D58A7F
oklch(70.7% 0.094 28.7)
-
Step 500
500
#C76B5E
oklch(63% 0.119 29.2)
-
Step 600
600
#B35145
oklch(55.7% 0.13 29)
-
Step 700
700
#994136
oklch(49% 0.121 29.3)
-
Step 800
800
#7D362D
oklch(42.7% 0.101 29.2)
-
Step 900
900 (this color)
#642F28
oklch(37.5% 0.078 29)
-
Step 950
950
#3B1C18
oklch(26.9% 0.05 28.5)
#642F28 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) | #3C3827 | 0.080 |
| Deuteranopia (no green cones) | #494327 | 0.075 |
| Tritanopia (no blue cones) | #6D262D | 0.029 |
| Achromatopsia (no color) | #3F3F3F | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642F28
#642F28
oklch(37.5% 0.078 29)
- #004A53
#004A53
oklch(37.4% 0.064 208.7)
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 #642F28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.039
- Chestnut #742802 ΔE 0.044
- Reddy Brown #6E1005 ΔE 0.057
- Blood #770001 ΔE 0.071
- Wine Red #7B0323 ΔE 0.072
- Claret #680018 ΔE 0.073
- Maroon #800000 ΔE 0.076
- Brownish Purple #76424E ΔE 0.077
Use #642F28 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.