#642A17
Closest named color: Chestnut (#742802). oklch(36.3% 0.089 38.4), rgb(100, 42, 23).
Aa
White text reads best on this color (11.13:1).
About this color
#642A17 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.089 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.035 away. White text reads best on it, at 11.13:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.089) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.88:1 |
| White text | 11.13:1 |
Values
| HEX | #642A17 |
| RGB | rgb(100, 42, 23) |
| HSL | hsl(15, 63%, 24%) |
| OKLCH | oklch(36.3% 0.089 38.4) |
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 #642A17 | 11.13:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #642A17 | 1.88:1 | Fails | Lc 8.7 | Not readable |
| #642A17 text on white | 11.13:1 | AAA | Lc 95.2 | Preferred for body text |
| #642A17 text on black | 1.88:1 | Fails | Lc -7.4 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6E1
oklch(93.6% 0.019 38.1)
-
Step 200
200
#F0D1C8
oklch(88.4% 0.037 36.8)
-
Step 300
300
#E8B2A1
oklch(80.8% 0.068 38.2)
-
Step 400
400
#DA886E
oklch(70.6% 0.108 38.4)
-
Step 500
500
#CE6848
oklch(63.1% 0.137 38.1)
-
Step 600
600
#B94D28
oklch(55.6% 0.149 38.6)
-
Step 700
700
#9F3D1B
oklch(49.1% 0.138 38.4)
-
Step 800
800
#813319
oklch(42.6% 0.115 38.3)
-
Step 900
900 (this color)
#642A17
oklch(36.3% 0.089 38.4)
-
Step 950
950
#3D1B11
oklch(26.9% 0.056 37.2)
#642A17 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) | #3A3315 | 0.087 |
| Deuteranopia (no green cones) | #484016 | 0.079 |
| Tritanopia (no blue cones) | #6E1E26 | 0.041 |
| Achromatopsia (no color) | #3B3B3B | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642A17
#642A17
oklch(36.3% 0.089 38.4)
- #004655
#004655
oklch(36.4% 0.065 218.2)
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 #642A17, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.035
- Reddy Brown #6E1005 ΔE 0.044
- Purple Brown #673A3F ΔE 0.059
- Blood #770001 ΔE 0.060
- Claret #680018 ΔE 0.066
- Maroon #800000 ΔE 0.069
- Wine Red #7B0323 ΔE 0.072
- Mud Brown #60460F ΔE 0.079
Use #642A17 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.