#642B3A
Closest named color: Purple Brown (#673A3F). oklch(37.3% 0.084 5.5), rgb(100, 43, 58).
Aa
White text reads best on this color (10.77:1).
About this color
#642B3A is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.084 and its hue 5°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.039 away. White text reads best on it, at 10.77:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.084) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.94:1 |
| White text | 10.77:1 |
Values
| HEX | #642B3A |
| RGB | rgb(100, 43, 58) |
| HSL | hsl(344, 40%, 28%) |
| OKLCH | oklch(37.3% 0.084 5.5) |
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 #642B3A | 10.77:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #642B3A | 1.94:1 | Fails | Lc 9.4 | Not readable |
| #642B3A text on white | 10.77:1 | AAA | Lc 94.6 | Preferred for body text |
| #642B3A text on black | 1.94:1 | Fails | Lc -8.0 | 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
#FBF3F4
oklch(97.1% 0.009 8.5)
-
Step 100
100
#F5E5E8
oklch(93.5% 0.018 4.5)
-
Step 200
200
#EFD0D6
oklch(88.5% 0.036 4.7)
-
Step 300
300
#E5B0BB
oklch(80.9% 0.063 4.8)
-
Step 400
400
#D68697
oklch(70.8% 0.1 6.1)
-
Step 500
500
#C9657E
oklch(63.1% 0.129 5.6)
-
Step 600
600
#B44A67
oklch(55.6% 0.14 5.8)
-
Step 700
700
#9A3B56
oklch(49.1% 0.129 5.5)
-
Step 800
800
#7D3146
oklch(42.6% 0.107 5.6)
-
Step 900
900 (this color)
#642B3A
oklch(37.3% 0.084 5.5)
-
Step 950
950
#3C1A23
oklch(27% 0.054 4.6)
#642B3A 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) | #35373A | 0.093 |
| Deuteranopia (no green cones) | #444239 | 0.086 |
| Tritanopia (no blue cones) | #6C2531 | 0.022 |
| Achromatopsia (no color) | #3E3E3E | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642B3A
#642B3A
oklch(37.3% 0.084 5.5)
- #004B45
#004B45
oklch(37.1% 0.065 185.7)
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 #642B3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.039
- Merlot #730039 ΔE 0.064
- Bordeaux #7B002C ΔE 0.066
- Wine Red #7B0323 ΔE 0.066
- Reddy Brown #6E1005 ΔE 0.069
- Claret #680018 ΔE 0.070
- Chestnut #742802 ΔE 0.070
- Burgundy #610023 ΔE 0.072
Use #642B3A 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.