#644093
Closest named color: Rebecca Purple (#663399). oklch(45.3% 0.133 301.3), rgb(100, 64, 147).
Aa
White text reads best on this color (7.78:1).
About this color
#644093 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.133 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.031 away. White text reads best on it, at 7.78:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.69:1 |
| White text | 7.78:1 |
Values
| HEX | #644093 |
| RGB | rgb(100, 64, 147) |
| HSL | hsl(266, 39%, 41%) |
| OKLCH | oklch(45.3% 0.133 301.3) |
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 #644093 | 7.78:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #644093 | 2.69:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #644093 text on white | 7.78:1 | AAA | Lc 86.7 | Fine for body text |
| #644093 text on black | 2.69:1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F7
oklch(93.7% 0.022 300.2)
-
Step 200
200
#DED3F2
oklch(88.5% 0.044 301.7)
-
Step 300
300
#C9B5EB
oklch(80.8% 0.078 301.6)
-
Step 400
400
#AE8DE1
oklch(70.6% 0.124 301.4)
-
Step 500
500
#9B6FD9
oklch(63.2% 0.158 301.2)
-
Step 600
600
#8654C6
oklch(55.6% 0.172 301.2)
-
Step 700
700
#7244AB
oklch(49.2% 0.16 301.3)
-
Step 800
800 (this color)
#644093
oklch(45.3% 0.133 301.3)
-
Step 900
900
#4C326F
oklch(37.8% 0.103 301.3)
-
Step 950
950
#2C1E41
oklch(27.1% 0.065 300.6)
#644093 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) | #1F5296 | 0.098 |
| Deuteranopia (no green cones) | #2B5291 | 0.090 |
| Tritanopia (no blue cones) | #5B5063 | 0.100 |
| Achromatopsia (no color) | #525252 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644093
#644093
oklch(45.3% 0.133 301.3)
- #4D5F00
#4D5F00
oklch(45.4% 0.11 121.6)
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 #644093, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.031
- Blueberry #464196 ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.053
- Twilight #4E518B ΔE 0.058
- Dusk #4E5481 ΔE 0.073
- Light Eggplant #894585 ΔE 0.078
- Bluey Purple #6241C7 ΔE 0.083
- Blue With A Hint Of Purple #533CC6 ΔE 0.089
Use #644093 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.