#644486
Closest named color: Twilight (#4E518B). oklch(45.2% 0.109 304.8), rgb(100, 68, 134).
Aa
White text reads best on this color (7.74:1).
About this color
#644486 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.109 and its hue 305°. 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 7.74:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.109) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.71:1 |
| White text | 7.74:1 |
Values
| HEX | #644486 |
| RGB | rgb(100, 68, 134) |
| HSL | hsl(269, 33%, 40%) |
| OKLCH | oklch(45.2% 0.109 304.8) |
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 #644486 | 7.74:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #644486 | 2.71:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #644486 text on white | 7.74:1 | AAA | Lc 86.7 | Fine for body text |
| #644486 text on black | 2.71:1 | Fails | Lc -15.4 | 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
#ECE7F4
oklch(93.6% 0.018 303.4)
-
Step 200
200
#DED4EC
oklch(88.5% 0.034 304.5)
-
Step 300
300
#CAB7E2
oklch(80.9% 0.063 305.1)
-
Step 400
400
#AF90D4
oklch(70.6% 0.102 304.8)
-
Step 500
500
#9C73C8
oklch(63% 0.131 305.2)
-
Step 600
600
#875AB5
oklch(55.6% 0.142 305.1)
-
Step 700
700
#724A9C
oklch(49.1% 0.131 304.5)
-
Step 800
800 (this color)
#644486
oklch(45.2% 0.109 304.8)
-
Step 900
900
#4C3565
oklch(37.8% 0.083 304.8)
-
Step 950
950
#2C1F3B
oklch(26.9% 0.053 304.5)
#644486 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) | #325288 | 0.080 |
| Deuteranopia (no green cones) | #3A5384 | 0.073 |
| Tritanopia (no blue cones) | #5E4F5E | 0.081 |
| Achromatopsia (no color) | #535353 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644486
#644486
oklch(45.2% 0.109 304.8)
- #486009
#486009
oklch(45.3% 0.11 125.2)
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 #644486, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.047
- Rebecca Purple #663399 ΔE 0.053
- Dark Slate Blue #483D8B ΔE 0.056
- Dusk #4E5481 ΔE 0.056
- Blueberry #464196 ΔE 0.060
- Dusty Grape #545775 ΔE 0.069
- Light Eggplant #894585 ΔE 0.070
- Dusky Blue #475F94 ΔE 0.080
Use #644486 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.