#642FA2
Closest named color: Rebecca Purple (#663399). oklch(44% 0.175 300.3), rgb(100, 47, 162).
Aa
White text reads best on this color (8.50:1).
About this color
#642FA2 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.175 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.018 away. White text reads best on it, at 8.50:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.175) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.47:1 |
| White text | 8.50:1 |
Values
| HEX | #642FA2 |
| RGB | rgb(100, 47, 162) |
| HSL | hsl(268, 55%, 41%) |
| OKLCH | oklch(44% 0.175 300.3) |
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 #642FA2 | 8.50:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #642FA2 | 2.47:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #642FA2 text on white | 8.50:1 | AAA | Lc 88.6 | Fine for body text |
| #642FA2 text on black | 2.47:1 | Fails | Lc -13.6 | 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
#F7F4FE
oklch(97.2% 0.014 299.8)
-
Step 100
100
#EDE6FB
oklch(93.7% 0.029 301)
-
Step 200
200
#DFD1FA
oklch(88.5% 0.058 300.8)
-
Step 300
300
#CBB2F9
oklch(81% 0.102 300.3)
-
Step 400
400
#B285F6
oklch(70.7% 0.165 300.6)
-
Step 500
500
#A061F2
oklch(63.1% 0.21 300.5)
-
Step 600
600
#8C41E1
oklch(55.6% 0.228 300.4)
-
Step 700
700
#7731C3
oklch(49.1% 0.212 300.4)
-
Step 800
800 (this color)
#642FA2
oklch(44% 0.175 300.3)
-
Step 900
900
#4F297D
oklch(37.7% 0.136 300.8)
-
Step 950
950
#2E1949
oklch(26.9% 0.086 300.9)
#642FA2 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) | #004CA5 | 0.123 |
| Deuteranopia (no green cones) | #004CA0 | 0.124 |
| Tritanopia (no blue cones) | #564B65 | 0.131 |
| Achromatopsia (no color) | #4D4D4D | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642FA2
#642FA2
oklch(44% 0.175 300.3)
- #4B5A00
#4B5A00
oklch(43.9% 0.104 120.2)
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 #642FA2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.018
- Grape #7209B7 ΔE 0.055
- Chrysanthemum #560BAD ΔE 0.058
- Blueberry #464196 ΔE 0.065
- Dark Slate Blue #483D8B ΔE 0.067
- Bluey Purple #6241C7 ΔE 0.069
- Blue With A Hint Of Purple #533CC6 ΔE 0.070
- Blurple #5539CC ΔE 0.076
Use #642FA2 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.