#64368C
Closest named color: Rebecca Purple (#663399). oklch(43.3% 0.14 306), rgb(100, 54, 140).
Aa
White text reads best on this color (8.57:1).
About this color
#64368C is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.140 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.023 away. White text reads best on it, at 8.57:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.44:1 |
| White text | 8.57:1 |
Values
| HEX | #64368C |
| RGB | rgb(100, 54, 140) |
| HSL | hsl(272, 44%, 38%) |
| OKLCH | oklch(43.3% 0.14 306) |
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 #64368C | 8.57:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #64368C | 2.44:1 | Fails | Lc 14.9 | Not readable |
| #64368C text on white | 8.57:1 | AAA | Lc 89.1 | Fine for body text |
| #64368C text on black | 2.44:1 | Fails | Lc -13.2 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EEE6F7
oklch(93.6% 0.024 307)
-
Step 200
200
#E0D2F2
oklch(88.5% 0.046 305.2)
-
Step 300
300
#CEB3EB
oklch(80.9% 0.083 306.5)
-
Step 400
400
#B58AE1
oklch(70.7% 0.131 306.1)
-
Step 500
500
#A36AD8
oklch(63.1% 0.167 306.1)
-
Step 600
600
#8E4EC5
oklch(55.5% 0.182 306.1)
-
Step 700
700
#793EAB
oklch(49.1% 0.17 306)
-
Step 800
800 (this color)
#64368C
oklch(43.3% 0.14 306)
-
Step 900
900
#502F6F
oklch(37.8% 0.109 305.6)
-
Step 950
950
#2F1C41
oklch(27% 0.07 306)
#64368C 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) | #0E4B8F | 0.116 |
| Deuteranopia (no green cones) | #254C8A | 0.104 |
| Tritanopia (no blue cones) | #5D475B | 0.102 |
| Achromatopsia (no color) | #4C4C4C | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64368C
#64368C
oklch(43.3% 0.14 306)
- #415B00
#415B00
oklch(43.4% 0.111 126.4)
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 #64368C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.023
- Dark Slate Blue #483D8B ΔE 0.052
- Blueberry #464196 ΔE 0.058
- Twilight #4E518B ΔE 0.075
- Purple #800080 ΔE 0.084
- Light Eggplant #894585 ΔE 0.086
- Dusk #4E5481 ΔE 0.088
- Chrysanthemum #560BAD ΔE 0.089
Use #64368C 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.