#644495
Closest named color: Rebecca Purple (#663399). oklch(46.2% 0.129 299.6), rgb(100, 68, 149).
Aa
White text reads best on this color (7.49:1).
About this color
#644495 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.129 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.039 away. White text reads best on it, at 7.49:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #644495 |
| RGB | rgb(100, 68, 149) |
| HSL | hsl(264, 37%, 43%) |
| OKLCH | oklch(46.2% 0.129 299.6) |
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 #644495 | 7.49:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #644495 | 2.80:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #644495 text on white | 7.49:1 | AAA | Lc 85.8 | Fine for body text |
| #644495 text on black | 2.80:1 | Fails | Lc -16.3 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE7F5
oklch(93.5% 0.019 299.1)
-
Step 200
200
#DCD4ED
oklch(88.4% 0.035 300.3)
-
Step 300
300
#C6B8E4
oklch(80.9% 0.063 299.5)
-
Step 400
400
#AA92D6
oklch(70.7% 0.1 300.1)
-
Step 500
500
#9576CB
oklch(63% 0.128 299.5)
-
Step 600
600
#805DB8
oklch(55.5% 0.14 299.6)
-
Step 700
700 (this color)
#644495
oklch(46.2% 0.129 299.6)
-
Step 800
800
#583F80
oklch(42.6% 0.107 299.6)
-
Step 900
900
#483667
oklch(37.6% 0.083 299.3)
-
Step 950
950
#2A203C
oklch(26.9% 0.052 299.3)
#644495 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) | #255598 | 0.091 |
| Deuteranopia (no green cones) | #2F5493 | 0.083 |
| Tritanopia (no blue cones) | #5A5466 | 0.099 |
| Achromatopsia (no color) | #555555 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644495
#644495
oklch(46.2% 0.129 299.6)
- #526000
#526000
oklch(46.1% 0.108 119.1)
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 #644495, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.039
- Twilight #4E518B ΔE 0.052
- Blueberry #464196 ΔE 0.053
- Dark Slate Blue #483D8B ΔE 0.056
- Dusk #4E5481 ΔE 0.067
- Light Eggplant #894585 ΔE 0.076
- Bluey Purple #6241C7 ΔE 0.081
- Dusky Blue #475F94 ΔE 0.081
Use #644495 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.