#64347E
Closest named color: Rebecca Purple (#663399). oklch(42% 0.127 312.1), rgb(100, 52, 126).
Aa
White text reads best on this color (8.99:1).
About this color
#64347E is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.127 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.045 away. White text reads best on it, at 8.99:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.33:1 |
| White text | 8.99:1 |
Values
| HEX | #64347E |
| RGB | rgb(100, 52, 126) |
| HSL | hsl(279, 42%, 35%) |
| OKLCH | oklch(42% 0.127 312.1) |
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 #64347E | 8.99:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #64347E | 2.33:1 | Fails | Lc 13.7 | Not readable |
| #64347E text on white | 8.99:1 | AAA | Lc 90.3 | Preferred for body text |
| #64347E text on black | 2.33:1 | Fails | Lc -12.0 | 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
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#EFE6F4
oklch(93.6% 0.021 313.8)
-
Step 200
200
#E2D2ED
oklch(88.5% 0.04 311.7)
-
Step 300
300
#D1B3E4
oklch(80.9% 0.075 312.2)
-
Step 400
400
#B98AD6
oklch(70.6% 0.119 311.9)
-
Step 500
500
#A86BCB
oklch(63.1% 0.152 312.1)
-
Step 600
600
#9351B7
oklch(55.6% 0.163 312.1)
-
Step 700
700
#7D419E
oklch(49.1% 0.152 311.9)
-
Step 800
800 (this color)
#64347E
oklch(42% 0.127 312.1)
-
Step 900
900
#533067
oklch(37.8% 0.098 311.9)
-
Step 950
950
#311C3C
oklch(27% 0.063 313.1)
#64347E 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) | #1E4780 | 0.111 |
| Deuteranopia (no green cones) | #2F4A7C | 0.098 |
| Tritanopia (no blue cones) | #614154 | 0.086 |
| Achromatopsia (no color) | #494949 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64347E
#64347E
oklch(42% 0.127 312.1)
- #335900
#335900
oklch(41.9% 0.117 132.2)
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 #64347E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.045
- Dark Slate Blue #483D8B ΔE 0.057
- Blueberry #464196 ΔE 0.070
- Twilight #4E518B ΔE 0.079
- Purple #800080 ΔE 0.080
- Light Eggplant #894585 ΔE 0.087
- Dusk #4E5481 ΔE 0.088
- Rich Purple #720058 ΔE 0.093
Use #64347E 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.