#642B76
Closest named color: Rebecca Purple (#663399). oklch(40.2% 0.132 317.3), rgb(100, 43, 118).
Aa
White text reads best on this color (9.77:1).
About this color
#642B76 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.132 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.059 away. White text reads best on it, at 9.77:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.14:1 |
| White text | 9.77:1 |
Values
| HEX | #642B76 |
| RGB | rgb(100, 43, 118) |
| HSL | hsl(286, 47%, 32%) |
| OKLCH | oklch(40.2% 0.132 317.3) |
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 #642B76 | 9.77:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #642B76 | 2.14:1 | Fails | Lc 11.8 | Not readable |
| #642B76 text on white | 9.77:1 | AAA | Lc 92.1 | Preferred for body text |
| #642B76 text on black | 2.14:1 | Fails | Lc -10.3 | 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 800.
-
Step 50
50
#F8F3FA
oklch(97% 0.011 316.5)
-
Step 100
100
#F0E6F4
oklch(93.7% 0.021 316.5)
-
Step 200
200
#E5D1EC
oklch(88.5% 0.042 317.4)
-
Step 300
300
#D5B2E2
oklch(81% 0.076 316.8)
-
Step 400
400
#C087D3
oklch(70.7% 0.124 317.4)
-
Step 500
500
#AF67C7
oklch(63.1% 0.157 317.2)
-
Step 600
600
#9B4BB4
oklch(55.6% 0.173 317.5)
-
Step 700
700
#843C9B
oklch(49.2% 0.16 317.2)
-
Step 800
800 (this color)
#642B76
oklch(40.2% 0.132 317.3)
-
Step 900
900
#572D65
oklch(37.7% 0.103 317.1)
-
Step 950
950
#331B3B
oklch(27% 0.065 317.2)
#642B76 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) | #154078 | 0.126 |
| Deuteranopia (no green cones) | #2D4674 | 0.110 |
| Tritanopia (no blue cones) | #63384C | 0.085 |
| Achromatopsia (no color) | #444444 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642B76
#642B76
oklch(40.2% 0.132 317.3)
- #225600
#225600
oklch(40.1% 0.122 137.3)
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 #642B76, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.059
- Dark Slate Blue #483D8B ΔE 0.071
- Purple #800080 ΔE 0.071
- Grape Purple #5D1451 ΔE 0.074
- Rich Purple #720058 ΔE 0.074
- Velvet #750851 ΔE 0.080
- Blueberry #464196 ΔE 0.086
- Indigo #4B0082 ΔE 0.089
Use #642B76 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.