#64409C
Closest named color: Rebecca Purple (#663399). oklch(46% 0.144 298.6), rgb(100, 64, 156).
Aa
White text reads best on this color (7.62:1).
About this color
#64409C is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.144 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.028 away. White text reads best on it, at 7.62:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.75:1 |
| White text | 7.62:1 |
Values
| HEX | #64409C |
| RGB | rgb(100, 64, 156) |
| HSL | hsl(263, 42%, 43%) |
| OKLCH | oklch(46% 0.144 298.6) |
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 #64409C | 7.62:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #64409C | 2.75:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #64409C text on white | 7.62:1 | AAA | Lc 86.1 | Fine for body text |
| #64409C text on black | 2.75:1 | Fails | Lc -15.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F6
oklch(93.5% 0.021 298.2)
-
Step 200
200
#DCD4F0
oklch(88.5% 0.039 298.7)
-
Step 300
300
#C6B7E8
oklch(80.8% 0.07 298.8)
-
Step 400
400
#AA91DD
oklch(70.8% 0.112 298.6)
-
Step 500
500
#9674D3
oklch(63.2% 0.142 298.8)
-
Step 600
600
#815AC0
oklch(55.6% 0.155 298.9)
-
Step 700
700 (this color)
#64409C
oklch(46% 0.144 298.6)
-
Step 800
800
#593D87
oklch(42.8% 0.12 298.7)
-
Step 900
900
#49356C
oklch(37.9% 0.093 298.7)
-
Step 950
950
#2A1F3F
oklch(26.9% 0.059 298.2)
#64409C 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) | #10549F | 0.105 |
| Deuteranopia (no green cones) | #21539A | 0.097 |
| Tritanopia (no blue cones) | #585368 | 0.110 |
| Achromatopsia (no color) | #545454 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64409C
#64409C
oklch(46% 0.144 298.6)
- #525F00
#525F00
oklch(45.8% 0.107 118.6)
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 #64409C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.028
- Blueberry #464196 ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.057
- Twilight #4E518B ΔE 0.063
- Bluey Purple #6241C7 ΔE 0.069
- Blue With A Hint Of Purple #533CC6 ΔE 0.075
- Dusk #4E5481 ΔE 0.081
- Iris #6258C4 ΔE 0.081
Use #64409C 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.