#644880
Closest named color: Twilight (#4E518B). oklch(45.6% 0.094 306.1), rgb(100, 72, 128).
Aa
White text reads best on this color (7.55:1).
About this color
#644880 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.094 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.043 away. White text reads best on it, at 7.55:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.78:1 |
| White text | 7.55:1 |
Values
| HEX | #644880 |
| RGB | rgb(100, 72, 128) |
| HSL | hsl(270, 28%, 39%) |
| OKLCH | oklch(45.6% 0.094 306.1) |
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 #644880 | 7.55:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #644880 | 2.78:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #644880 text on white | 7.55:1 | AAA | Lc 86.1 | Fine for body text |
| #644880 text on black | 2.78:1 | 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 800.
-
Step 50
50
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#ECE7F2
oklch(93.5% 0.016 306.4)
-
Step 200
200
#DED4EA
oklch(88.5% 0.032 306.2)
-
Step 300
300
#C9B8DD
oklch(80.9% 0.054 306)
-
Step 400
400
#AE93CC
oklch(70.8% 0.087 305.9)
-
Step 500
500
#9A77BF
oklch(63.1% 0.112 305.8)
-
Step 600
600
#855FAB
oklch(55.7% 0.121 305.9)
-
Step 700
700
#714E93
oklch(49.2% 0.113 306.1)
-
Step 800
800 (this color)
#644880
oklch(45.6% 0.094 306.1)
-
Step 900
900
#4B3760
oklch(37.7% 0.072 305.7)
-
Step 950
950
#2C2038
oklch(26.9% 0.046 306.5)
#644880 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) | #3B5382 | 0.067 |
| Deuteranopia (no green cones) | #41547E | 0.062 |
| Tritanopia (no blue cones) | #60515E | 0.069 |
| Achromatopsia (no color) | #545454 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644880
#644880
oklch(45.6% 0.094 306.1)
- #4A6020
#4A6020
oklch(45.6% 0.093 126)
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 #644880, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.043
- Dusk #4E5481 ΔE 0.046
- Dusty Grape #545775 ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.064
- Rebecca Purple #663399 ΔE 0.069
- Blueberry #464196 ΔE 0.069
- Light Eggplant #894585 ΔE 0.069
- Dusky Blue #475F94 ΔE 0.074
Use #644880 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.