#644394
Closest named color: Rebecca Purple (#663399). oklch(45.9% 0.129 300.2), rgb(100, 67, 148).
Aa
White text reads best on this color (7.57:1).
About this color
#644394 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 0.037 away. White text reads best on it, at 7.57:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.77:1 |
| White text | 7.57:1 |
Values
| HEX | #644394 |
| RGB | rgb(100, 67, 148) |
| HSL | hsl(264, 38%, 42%) |
| OKLCH | oklch(45.9% 0.129 300.2) |
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 #644394 | 7.57:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #644394 | 2.77:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #644394 text on white | 7.57:1 | AAA | Lc 86.1 | Fine for body text |
| #644394 text on black | 2.77:1 | Fails | Lc -16.0 | 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
#EBE7F4
oklch(93.5% 0.018 300.1)
-
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
#9676CB
oklch(63.1% 0.128 300.1)
-
Step 600
600
#815DB8
oklch(55.6% 0.14 300.2)
-
Step 700
700 (this color)
#644394
oklch(45.9% 0.129 300.2)
-
Step 800
800
#593F80
oklch(42.7% 0.107 300.4)
-
Step 900
900
#493667
oklch(37.7% 0.084 300.3)
-
Step 950
950
#2B203C
oklch(27.1% 0.052 301.1)
#644394 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) | #245497 | 0.092 |
| Deuteranopia (no green cones) | #2E5392 | 0.084 |
| Tritanopia (no blue cones) | #5A5365 | 0.099 |
| Achromatopsia (no color) | #545454 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644394
#644394
oklch(45.9% 0.129 300.2)
- #506000
#506000
oklch(45.9% 0.109 120.3)
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 #644394, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.037
- Blueberry #464196 ΔE 0.053
- Twilight #4E518B ΔE 0.053
- Dark Slate Blue #483D8B ΔE 0.055
- Dusk #4E5481 ΔE 0.068
- Light Eggplant #894585 ΔE 0.076
- Bluey Purple #6241C7 ΔE 0.082
- Dusky Blue #475F94 ΔE 0.083
Use #644394 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.