#644484
Closest named color: Twilight (#4E518B). oklch(45.1% 0.106 305.6), rgb(100, 68, 132).
Aa
White text reads best on this color (7.77:1).
About this color
#644484 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.106 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.047 away. White text reads best on it, at 7.77:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.70:1 |
| White text | 7.77:1 |
Values
| HEX | #644484 |
| RGB | rgb(100, 68, 132) |
| HSL | hsl(270, 32%, 39%) |
| OKLCH | oklch(45.1% 0.106 305.6) |
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 #644484 | 7.77:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #644484 | 2.70:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #644484 text on white | 7.77:1 | AAA | Lc 86.8 | Fine for body text |
| #644484 text on black | 2.70:1 | Fails | Lc -15.3 | 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 800.
-
Step 50
50
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F4
oklch(93.6% 0.018 306.7)
-
Step 200
200
#DED4EC
oklch(88.5% 0.034 304.5)
-
Step 300
300
#CAB7E1
oklch(80.9% 0.062 305.6)
-
Step 400
400
#B090D2
oklch(70.7% 0.1 306.2)
-
Step 500
500
#9C74C6
oklch(63.1% 0.126 305.5)
-
Step 600
600
#875BB3
oklch(55.6% 0.138 305.5)
-
Step 700
700
#734A9A
oklch(49.1% 0.129 305.9)
-
Step 800
800 (this color)
#644484
oklch(45.1% 0.106 305.6)
-
Step 900
900
#4C3564
oklch(37.7% 0.082 305.4)
-
Step 950
950
#2D1F3B
oklch(27% 0.054 306.2)
#644484 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) | #335186 | 0.078 |
| Deuteranopia (no green cones) | #3B5382 | 0.073 |
| Tritanopia (no blue cones) | #5F4F5D | 0.080 |
| Achromatopsia (no color) | #525252 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644484
#644484
oklch(45.1% 0.106 305.6)
- #475F0F
#475F0F
oklch(45% 0.106 125.7)
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 #644484, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.047
- Dusk #4E5481 ΔE 0.055
- Rebecca Purple #663399 ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.057
- Blueberry #464196 ΔE 0.062
- Dusty Grape #545775 ΔE 0.068
- Light Eggplant #894585 ΔE 0.070
- Dusky Blue #475F94 ΔE 0.081
Use #644484 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.