#642A3A
Closest named color: Purple Brown (#673A3F). oklch(37.1% 0.085 4.8), rgb(100, 42, 58).
Aa
White text reads best on this color (10.85:1).
About this color
#642A3A is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.085 and its hue 5°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.042 away. White text reads best on it, at 10.85:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.085) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.93:1 |
| White text | 10.85:1 |
Values
| HEX | #642A3A |
| RGB | rgb(100, 42, 58) |
| HSL | hsl(343, 41%, 28%) |
| OKLCH | oklch(37.1% 0.085 4.8) |
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 #642A3A | 10.85:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #642A3A | 1.93:1 | Fails | Lc 9.2 | Not readable |
| #642A3A text on white | 10.85:1 | AAA | Lc 94.7 | Preferred for body text |
| #642A3A text on black | 1.93:1 | Fails | Lc -7.9 | 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
#FBF3F5
oklch(97.1% 0.009 0.1)
-
Step 100
100
#F6E5E8
oklch(93.6% 0.019 5.3)
-
Step 200
200
#EFD0D6
oklch(88.5% 0.036 4.7)
-
Step 300
300
#E6B0BB
oklch(81% 0.064 5)
-
Step 400
400
#D78598
oklch(70.8% 0.103 5)
-
Step 500
500
#C9647F
oklch(63% 0.131 4.6)
-
Step 600
600
#B54968
oklch(55.7% 0.143 5.1)
-
Step 700
700
#9B3A57
oklch(49.2% 0.132 4.8)
-
Step 800
800
#7E3047
oklch(42.6% 0.11 4.7)
-
Step 900
900 (this color)
#642A3A
oklch(37.1% 0.085 4.8)
-
Step 950
950
#3C1A23
oklch(27% 0.054 4.6)
#642A3A 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) | #35363A | 0.094 |
| Deuteranopia (no green cones) | #444139 | 0.085 |
| Tritanopia (no blue cones) | #6C2430 | 0.022 |
| Achromatopsia (no color) | #3D3D3D | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642A3A
#642A3A
oklch(37.1% 0.085 4.8)
- #004B44
#004B44
oklch(37.1% 0.066 184.2)
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 #642A3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.042
- Merlot #730039 ΔE 0.062
- Bordeaux #7B002C ΔE 0.065
- Wine Red #7B0323 ΔE 0.065
- Reddy Brown #6E1005 ΔE 0.068
- Claret #680018 ΔE 0.068
- Burgundy #610023 ΔE 0.070
- Chestnut #742802 ΔE 0.071
Use #642A3A 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.