#642C6E
Closest named color: Grape Purple (#5D1451). oklch(39.9% 0.122 321.4), rgb(100, 44, 110).
Aa
White text reads best on this color (9.87:1).
About this color
#642C6E is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.122 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.065 away. White text reads best on it, at 9.87:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 2.12:1 |
| White text | 9.87:1 |
Values
| HEX | #642C6E |
| RGB | rgb(100, 44, 110) |
| HSL | hsl(291, 43%, 30%) |
| OKLCH | oklch(39.9% 0.122 321.4) |
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 #642C6E | 9.87:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #642C6E | 2.12:1 | Fails | Lc 11.5 | Not readable |
| #642C6E text on white | 9.87:1 | AAA | Lc 92.4 | Preferred for body text |
| #642C6E text on black | 2.12:1 | Fails | Lc -10.0 | 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
#F9F3FB
oklch(97.1% 0.012 317.7)
-
Step 100
100
#F2E4F5
oklch(93.5% 0.027 320.2)
-
Step 200
200
#E9CFEE
oklch(88.5% 0.05 320.8)
-
Step 300
300
#DCADE5
oklch(80.8% 0.092 320.9)
-
Step 400
400
#CA80D7
oklch(70.8% 0.146 321.4)
-
Step 500
500
#BB5BCC
oklch(63.1% 0.187 321.4)
-
Step 600
600
#A63CB9
oklch(55.6% 0.204 321.2)
-
Step 700
700
#8E2D9F
oklch(49.1% 0.188 321.3)
-
Step 800
800
#742781
oklch(42.7% 0.157 321.6)
-
Step 900
900 (this color)
#642C6E
oklch(39.9% 0.122 321.4)
-
Step 950
950
#37173D
oklch(27% 0.078 321.1)
#642C6E 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) | #1F3F70 | 0.118 |
| Deuteranopia (no green cones) | #33456C | 0.102 |
| Tritanopia (no blue cones) | #653648 | 0.076 |
| Achromatopsia (no color) | #434343 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642C6E
#642C6E
oklch(39.9% 0.122 321.4)
- #16560C
#16560C
oklch(39.8% 0.122 141.3)
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 #642C6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.065
- Rich Purple #720058 ΔE 0.068
- Velvet #750851 ΔE 0.071
- Rebecca Purple #663399 ΔE 0.071
- Dark Slate Blue #483D8B ΔE 0.077
- Purple #800080 ΔE 0.077
- Blueberry #464196 ΔE 0.093
- Royal Purple #4B006E ΔE 0.093
Use #642C6E 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.