#642C55
Closest named color: Grape Purple (#5D1451). oklch(38.5% 0.098 338.7), rgb(100, 44, 85).
Aa
White text reads best on this color (10.32:1).
About this color
#642C55 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.098 and its hue 339°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.053 away. White text reads best on it, at 10.32:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.098) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 2.03:1 |
| White text | 10.32:1 |
Values
| HEX | #642C55 |
| RGB | rgb(100, 44, 85) |
| HSL | hsl(316, 39%, 28%) |
| OKLCH | oklch(38.5% 0.098 338.7) |
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 #642C55 | 10.32:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #642C55 | 2.03:1 | Fails | Lc 10.4 | Not readable |
| #642C55 text on white | 10.32:1 | AAA | Lc 93.6 | Preferred for body text |
| #642C55 text on black | 2.03:1 | Fails | Lc -8.9 | 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
#FAF3F8
oklch(97.1% 0.01 335.5)
-
Step 100
100
#F4E5EF
oklch(93.7% 0.021 337.7)
-
Step 200
200
#ECCFE2
oklch(88.4% 0.041 338.7)
-
Step 300
300
#E1AFD1
oklch(81% 0.073 338.4)
-
Step 400
400
#D083B9
oklch(70.7% 0.117 338.7)
-
Step 500
500
#C261A8
oklch(63.1% 0.151 338.5)
-
Step 600
600
#AD4593
oklch(55.6% 0.163 338.5)
-
Step 700
700
#94367D
oklch(49% 0.151 338.5)
-
Step 800
800
#792E66
oklch(42.8% 0.126 338.7)
-
Step 900
900 (this color)
#642C55
oklch(38.5% 0.098 338.7)
-
Step 950
950
#391930
oklch(26.9% 0.061 338.9)
#642C55 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) | #2E3B56 | 0.102 |
| Deuteranopia (no green cones) | #3E4354 | 0.090 |
| Tritanopia (no blue cones) | #692E3C | 0.046 |
| Achromatopsia (no color) | #404040 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642C55
#642C55
oklch(38.5% 0.098 338.7)
- #005231
#005231
oklch(38.6% 0.09 158.2)
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 #642C55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.053
- Velvet #750851 ΔE 0.058
- Purple Brown #673A3F ΔE 0.061
- Rich Purple #720058 ΔE 0.064
- Merlot #730039 ΔE 0.071
- Red Purple #820747 ΔE 0.073
- Wine #80013F ΔE 0.076
- Brownish Purple #76424E ΔE 0.076
Use #642C55 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.