#642679
Closest named color: Rebecca Purple (#663399). oklch(39.8% 0.143 316.4), rgb(100, 38, 121).
Aa
White text reads best on this color (10.02:1).
About this color
#642679 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.143 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.057 away. White text reads best on it, at 10.02:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.09:1 |
| White text | 10.02:1 |
Values
| HEX | #642679 |
| RGB | rgb(100, 38, 121) |
| HSL | hsl(285, 52%, 31%) |
| OKLCH | oklch(39.8% 0.143 316.4) |
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 #642679 | 10.02:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #642679 | 2.09:1 | Fails | Lc 11.3 | Not readable |
| #642679 text on white | 10.02:1 | AAA | Lc 92.6 | Preferred for body text |
| #642679 text on black | 2.09:1 | Fails | Lc -9.8 | 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
#F9F3FC
oklch(97.1% 0.013 314.8)
-
Step 100
100
#F2E4F8
oklch(93.6% 0.031 315.9)
-
Step 200
200
#E9CEF4
oklch(88.6% 0.059 316.2)
-
Step 300
300
#DCABEF
oklch(80.8% 0.107 316.4)
-
Step 400
400
#CA7BE7
oklch(70.7% 0.171 316.4)
-
Step 500
500
#BB52E0
oklch(63.1% 0.219 316.1)
-
Step 600
600
#A72CCD
oklch(55.6% 0.238 316.5)
-
Step 700
700
#8F1BB1
oklch(49.1% 0.221 316.6)
-
Step 800
800
#741C90
oklch(42.7% 0.183 316.2)
-
Step 900
900 (this color)
#642679
oklch(39.8% 0.143 316.4)
-
Step 950
950
#371443
oklch(26.9% 0.091 316.5)
#642679 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) | #023E7B | 0.139 |
| Deuteranopia (no green cones) | #274477 | 0.119 |
| Tritanopia (no blue cones) | #63364C | 0.093 |
| Achromatopsia (no color) | #424242 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #642679
#642679
oklch(39.8% 0.143 316.4)
- #245400
#245400
oklch(39.6% 0.119 136.4)
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 #642679, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.057
- Purple #800080 ΔE 0.065
- Rich Purple #720058 ΔE 0.073
- Grape Purple #5D1451 ΔE 0.074
- Dark Slate Blue #483D8B ΔE 0.074
- Indigo #4B0082 ΔE 0.080
- Velvet #750851 ΔE 0.081
- Royal Purple #4B006E ΔE 0.083
Use #642679 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.