#64509B
Closest named color: Twilight (#4E518B). oklch(48.7% 0.118 293.9), rgb(100, 80, 155).
Aa
White text reads best on this color (6.64:1).
About this color
#64509B is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.118 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.045 away. White text reads best on it, at 6.64:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.16:1 |
| White text | 6.64:1 |
Values
| HEX | #64509B |
| RGB | rgb(100, 80, 155) |
| HSL | hsl(256, 32%, 46%) |
| OKLCH | oklch(48.7% 0.118 293.9) |
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 #64509B | 6.64:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #64509B | 3.16:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #64509B text on white | 6.64:1 | AA | Lc 82.7 | Fine for body text |
| #64509B text on black | 3.16:1 | AA large text | Lc -19.3 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#EAE8F4
oklch(93.6% 0.016 293.7)
-
Step 200
200
#DAD6ED
oklch(88.6% 0.032 293.7)
-
Step 300
300
#C2BAE3
oklch(80.9% 0.058 294)
-
Step 400
400
#A396D4
oklch(70.7% 0.09 293.6)
-
Step 500
500
#8D7BC9
oklch(63.1% 0.116 293.4)
-
Step 600
600
#7862B6
oklch(55.5% 0.128 293.9)
-
Step 700
700 (this color)
#64509B
oklch(48.7% 0.118 293.9)
-
Step 800
800
#52437F
oklch(42.7% 0.098 293.3)
-
Step 900
900
#443966
oklch(37.8% 0.076 293.7)
-
Step 950
950
#28223C
oklch(27.2% 0.048 293.6)
#64509B 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) | #365D9E | 0.068 |
| Deuteranopia (no green cones) | #395B99 | 0.064 |
| Tritanopia (no blue cones) | #575E6E | 0.094 |
| Achromatopsia (no color) | #5C5C5C | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64509B
#64509B
oklch(48.7% 0.118 293.9)
- #5F6600
#5F6600
oklch(48.7% 0.11 114.4)
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 #64509B, closest first.
No curated palette has a color within ΔE 0.04 of #64509B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.045
- Dusk #4E5481 ΔE 0.058
- Dusky Blue #475F94 ΔE 0.059
- Iris #6258C4 ΔE 0.065
- Denim Blue #3B5B92 ΔE 0.066
- Blueberry #464196 ΔE 0.067
- Rebecca Purple #663399 ΔE 0.067
- Muted Purple #805B87 ΔE 0.071
Use #64509B 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.