#642D1E
Closest named color: Chestnut (#742802). oklch(36.9% 0.084 36.2), rgb(100, 45, 30).
Aa
White text reads best on this color (10.84:1).
About this color
#642D1E is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.084 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.037 away. White text reads best on it, at 10.84:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.084) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.93:1 |
| White text | 10.84:1 |
Values
| HEX | #642D1E |
| RGB | rgb(100, 45, 30) |
| HSL | hsl(13, 54%, 25%) |
| OKLCH | oklch(36.9% 0.084 36.2) |
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 #642D1E | 10.84:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #642D1E | 1.93:1 | Fails | Lc 9.2 | Not readable |
| #642D1E text on white | 10.84:1 | AAA | Lc 94.7 | Preferred for body text |
| #642D1E text on black | 1.93:1 | Fails | Lc -7.9 | 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
#F6E6E2
oklch(93.7% 0.018 34.3)
-
Step 200
200
#EFD2C9
oklch(88.6% 0.035 38)
-
Step 300
300
#E6B3A5
oklch(80.9% 0.063 35.9)
-
Step 400
400
#D78A74
oklch(70.7% 0.1 36.7)
-
Step 500
500
#CA6A50
oklch(63% 0.128 36.1)
-
Step 600
600
#B65034
oklch(55.7% 0.139 36.2)
-
Step 700
700
#9C4026
oklch(49.1% 0.129 36.5)
-
Step 800
800
#7F3521
oklch(42.7% 0.108 36.1)
-
Step 900
900 (this color)
#642D1E
oklch(36.9% 0.084 36.2)
-
Step 950
950
#3C1C13
oklch(26.9% 0.053 36.6)
#642D1E 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) | #3B361C | 0.084 |
| Deuteranopia (no green cones) | #49421D | 0.077 |
| Tritanopia (no blue cones) | #6E222A | 0.038 |
| Achromatopsia (no color) | #3D3D3D | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642D1E
#642D1E
oklch(36.9% 0.084 36.2)
- #004856
#004856
oklch(37% 0.066 216.3)
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 #642D1E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.037
- Purple Brown #673A3F ΔE 0.050
- Reddy Brown #6E1005 ΔE 0.051
- Blood #770001 ΔE 0.065
- Claret #680018 ΔE 0.071
- Maroon #800000 ΔE 0.073
- Wine Red #7B0323 ΔE 0.073
- Mud Brown #60460F ΔE 0.075
Use #642D1E 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.