#644883
Closest named color: Twilight (#4E518B). oklch(45.8% 0.098 304.7), rgb(100, 72, 131).
Aa
White text reads best on this color (7.50:1).
About this color
#644883 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.098 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.042 away. White text reads best on it, at 7.50:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.79:1 |
| White text | 7.50:1 |
Values
| HEX | #644883 |
| RGB | rgb(100, 72, 131) |
| HSL | hsl(268, 29%, 40%) |
| OKLCH | oklch(45.8% 0.098 304.7) |
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 #644883 | 7.50:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #644883 | 2.79:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #644883 text on white | 7.50:1 | AAA | Lc 86.0 | Fine for body text |
| #644883 text on black | 2.79:1 | Fails | Lc -16.1 | 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 800.
-
Step 50
50
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#ECE7F3
oklch(93.5% 0.017 304.8)
-
Step 200
200
#DED4EB
oklch(88.5% 0.033 305.3)
-
Step 300
300
#C9B8DF
oklch(80.9% 0.057 304.9)
-
Step 400
400
#AD92CF
oklch(70.6% 0.092 304.4)
-
Step 500
500
#9A76C2
oklch(63.1% 0.117 305.1)
-
Step 600
600
#855EAF
oklch(55.7% 0.127 304.8)
-
Step 700
700
#704D96
oklch(49.1% 0.118 304.6)
-
Step 800
800 (this color)
#644883
oklch(45.8% 0.098 304.7)
-
Step 900
900
#4B3662
oklch(37.7% 0.077 305)
-
Step 950
950
#2C2039
oklch(27% 0.048 305.5)
#644883 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) | #395485 | 0.069 |
| Deuteranopia (no green cones) | #405581 | 0.064 |
| Tritanopia (no blue cones) | #5F525F | 0.074 |
| Achromatopsia (no color) | #555555 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644883
#644883
oklch(45.8% 0.098 304.7)
- #4B601B
#4B601B
oklch(45.7% 0.097 124.8)
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 #644883, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.042
- Dusk #4E5481 ΔE 0.047
- Dusty Grape #545775 ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.063
- Rebecca Purple #663399 ΔE 0.065
- Blueberry #464196 ΔE 0.066
- Light Eggplant #894585 ΔE 0.069
- Dusky Blue #475F94 ΔE 0.073
Use #644883 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.