#642A23
Closest named color: Chestnut (#742802). oklch(36.5% 0.086 28.9), rgb(100, 42, 35).
Aa
White text reads best on this color (11.06:1).
About this color
#642A23 is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.086 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.043 away. White text reads best on it, at 11.06:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.086) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.89:1 |
| White text | 11.06:1 |
Values
| HEX | #642A23 |
| RGB | rgb(100, 42, 35) |
| HSL | hsl(6, 48%, 26%) |
| OKLCH | oklch(36.5% 0.086 28.9) |
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 #642A23 | 11.06:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #642A23 | 1.89:1 | Fails | Lc 8.8 | Not readable |
| #642A23 text on white | 11.06:1 | AAA | Lc 95.1 | Preferred for body text |
| #642A23 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E6E3
oklch(93.7% 0.018 30.3)
-
Step 200
200
#F0D1CC
oklch(88.5% 0.036 28.7)
-
Step 300
300
#E7B2A9
oklch(80.9% 0.064 29.5)
-
Step 400
400
#D9877B
oklch(70.6% 0.103 28.9)
-
Step 500
500
#CD675A
oklch(63.1% 0.132 28.8)
-
Step 600
600
#B84C40
oklch(55.6% 0.143 28.8)
-
Step 700
700
#9E3C32
oklch(49.1% 0.133 28.6)
-
Step 800
800
#80332A
oklch(42.7% 0.109 29.1)
-
Step 900
900 (this color)
#642A23
oklch(36.5% 0.086 28.9)
-
Step 950
950
#3D1B17
oklch(27% 0.054 28.1)
#642A23 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) | #393422 | 0.088 |
| Deuteranopia (no green cones) | #474022 | 0.081 |
| Tritanopia (no blue cones) | #6E1F29 | 0.032 |
| Achromatopsia (no color) | #3C3C3C | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642A23
#642A23
oklch(36.5% 0.086 28.9)
- #004750
#004750
oklch(36.4% 0.063 209.1)
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 #642A23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.043
- Reddy Brown #6E1005 ΔE 0.047
- Purple Brown #673A3F ΔE 0.050
- Blood #770001 ΔE 0.061
- Claret #680018 ΔE 0.062
- Wine Red #7B0323 ΔE 0.066
- Maroon #800000 ΔE 0.070
- Bordeaux #7B002C ΔE 0.072
Use #642A23 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.