#642742
Closest named color: Purple Brown (#673A3F). oklch(36.9% 0.094 355), rgb(100, 39, 66).
Aa
White text reads best on this color (10.99:1).
About this color
#642742 is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.094 and its hue 355°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.053 away. White text reads best on it, at 10.99:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.094) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.91:1 |
| White text | 10.99:1 |
Values
| HEX | #642742 |
| RGB | rgb(100, 39, 66) |
| HSL | hsl(333, 44%, 27%) |
| OKLCH | oklch(36.9% 0.094 355) |
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 #642742 | 10.99:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #642742 | 1.91:1 | Fails | Lc 9.0 | Not readable |
| #642742 text on white | 10.99:1 | AAA | Lc 94.9 | Preferred for body text |
| #642742 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
#FBF3F6
oklch(97.1% 0.009 352.4)
-
Step 100
100
#F6E5EA
oklch(93.7% 0.02 357.6)
-
Step 200
200
#EFCFDA
oklch(88.4% 0.039 355.2)
-
Step 300
300
#E6AEC3
oklch(80.8% 0.071 354.5)
-
Step 400
400
#D782A4
oklch(70.6% 0.112 354.8)
-
Step 500
500
#CA608E
oklch(63% 0.143 354.7)
-
Step 600
600
#B64478
oklch(55.7% 0.156 355.1)
-
Step 700
700
#9C3565
oklch(49.2% 0.145 355)
-
Step 800
800
#7F2D52
oklch(42.8% 0.12 355.4)
-
Step 900
900 (this color)
#642742
oklch(36.9% 0.094 355)
-
Step 950
950
#3C1928
oklch(27% 0.059 354.7)
#642742 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) | #303543 | 0.103 |
| Deuteranopia (no green cones) | #404041 | 0.093 |
| Tritanopia (no blue cones) | #6C2331 | 0.031 |
| Achromatopsia (no color) | #3C3C3C | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642742
#642742
oklch(36.9% 0.094 355)
- #004B3D
#004B3D
oklch(36.8% 0.07 174.8)
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 #642742, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.053
- Merlot #730039 ΔE 0.054
- Grape Purple #5D1451 ΔE 0.057
- Velvet #750851 ΔE 0.062
- Bordeaux #7B002C ΔE 0.064
- Wine #80013F ΔE 0.067
- Wine Red #7B0323 ΔE 0.069
- Burgundy #610023 ΔE 0.069
Use #642742 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.