#642B27
Closest named color: Purple Brown (#673A3F). oklch(36.8% 0.083 26), rgb(100, 43, 39).
Aa
White text reads best on this color (10.95:1).
About this color
#642B27 is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.083 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.045 away. White text reads best on it, at 10.95:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.91:1 |
| White text | 10.95:1 |
Values
| HEX | #642B27 |
| RGB | rgb(100, 43, 39) |
| HSL | hsl(4, 44%, 27%) |
| OKLCH | oklch(36.8% 0.083 26) |
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 #642B27 | 10.95:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #642B27 | 1.91:1 | Fails | Lc 9.0 | Not readable |
| #642B27 text on white | 10.95:1 | AAA | Lc 94.9 | Preferred for body text |
| #642B27 text on black | 1.91:1 | Fails | Lc -7.7 | 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
#F6E6E4
oklch(93.7% 0.018 26.1)
-
Step 200
200
#EFD1CD
oklch(88.5% 0.034 26.8)
-
Step 300
300
#E7B2AC
oklch(81% 0.063 25.9)
-
Step 400
400
#D88880
oklch(70.8% 0.1 26.1)
-
Step 500
500
#CB6860
oklch(63.1% 0.127 26.1)
-
Step 600
600
#B74D46
oklch(55.7% 0.139 26.3)
-
Step 700
700
#9D3D38
oklch(49.1% 0.129 25.9)
-
Step 800
800
#7F332E
oklch(42.6% 0.107 26.3)
-
Step 900
900 (this color)
#642B27
oklch(36.8% 0.083 26)
-
Step 950
950
#3D1B18
oklch(27% 0.054 26.5)
#642B27 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) | #393526 | 0.087 |
| Deuteranopia (no green cones) | #474126 | 0.081 |
| Tritanopia (no blue cones) | #6E212A | 0.029 |
| Achromatopsia (no color) | #3C3C3C | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642B27
#642B27
oklch(36.8% 0.083 26)
- #00484F
#00484F
oklch(36.7% 0.063 205.9)
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 #642B27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.045
- Chestnut #742802 ΔE 0.046
- Reddy Brown #6E1005 ΔE 0.050
- Claret #680018 ΔE 0.064
- Blood #770001 ΔE 0.064
- Wine Red #7B0323 ΔE 0.066
- Bordeaux #7B002C ΔE 0.072
- Maroon #800000 ΔE 0.072
Use #642B27 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.