#642B10
Closest named color: Chestnut (#742802). oklch(36.4% 0.091 43.5), rgb(100, 43, 16).
Aa
White text reads best on this color (11.08:1).
About this color
#642B10 is a dark, moderately saturated brown. In OKLCH its lightness is 36%, its chroma 0.091 and its hue 44°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.033 away. White text reads best on it, at 11.08:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.091) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.89:1 |
| White text | 11.08:1 |
Values
| HEX | #642B10 |
| RGB | rgb(100, 43, 16) |
| HSL | hsl(19, 72%, 23%) |
| OKLCH | oklch(36.4% 0.091 43.5) |
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 #642B10 | 11.08:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #642B10 | 1.89:1 | Fails | Lc 8.8 | Not readable |
| #642B10 text on white | 11.08:1 | AAA | Lc 95.1 | Preferred for body text |
| #642B10 text on black | 1.89:1 | Fails | Lc -7.5 | 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
#F6E6E0
oklch(93.6% 0.019 41.8)
-
Step 200
200
#F0D2C5
oklch(88.5% 0.038 44.8)
-
Step 300
300
#E7B39D
oklch(80.8% 0.068 44)
-
Step 400
400
#D98968
oklch(70.6% 0.109 43)
-
Step 500
500
#CD693D
oklch(63% 0.14 43.2)
-
Step 600
600
#B94E17
oklch(55.6% 0.152 43.3)
-
Step 700
700
#9F3E06
oklch(49.1% 0.141 43.3)
-
Step 800
800
#81340C
oklch(42.7% 0.117 43.4)
-
Step 900
900 (this color)
#642B10
oklch(36.4% 0.091 43.5)
-
Step 950
950
#3D1C0D
oklch(27% 0.057 44)
#642B10 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) | #3B340C | 0.085 |
| Deuteranopia (no green cones) | #49410E | 0.079 |
| Tritanopia (no blue cones) | #6E1E25 | 0.047 |
| Achromatopsia (no color) | #3C3C3C | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642B10
#642B10
oklch(36.4% 0.091 43.5)
- #004558
#004558
oklch(36.3% 0.068 223.7)
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 #642B10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.033
- Reddy Brown #6E1005 ΔE 0.047
- Blood #770001 ΔE 0.063
- Purple Brown #673A3F ΔE 0.063
- Maroon #800000 ΔE 0.071
- Claret #680018 ΔE 0.072
- Mud Brown #60460F ΔE 0.074
- Wine Red #7B0323 ΔE 0.078
Use #642B10 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.