#644270
Closest named color: Dusk (#4E5481). oklch(43.6% 0.084 316.9), rgb(100, 66, 112).
Aa
White text reads best on this color (8.21:1).
About this color
#644270 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.084 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.059 away. White text reads best on it, at 8.21:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.084) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.55:1 |
| White text | 8.21:1 |
Values
| HEX | #644270 |
| RGB | rgb(100, 66, 112) |
| HSL | hsl(284, 26%, 35%) |
| OKLCH | oklch(43.6% 0.084 316.9) |
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 #644270 | 8.21:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #644270 | 2.55:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #644270 text on white | 8.21:1 | AAA | Lc 88.3 | Fine for body text |
| #644270 text on black | 2.55:1 | Fails | Lc -13.9 | Not readable |
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
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EEE7F0
oklch(93.6% 0.014 318.7)
-
Step 200
200
#E1D4E5
oklch(88.5% 0.027 318.2)
-
Step 300
300
#CEB7D6
oklch(80.9% 0.05 317.4)
-
Step 400
400
#B592C1
oklch(70.8% 0.078 317.4)
-
Step 500
500
#A276B2
oklch(63.1% 0.1 316.8)
-
Step 600
600
#8D5E9D
oklch(55.6% 0.108 317.2)
-
Step 700
700
#784D87
oklch(49.2% 0.102 317)
-
Step 800
800 (this color)
#644270
oklch(43.6% 0.084 316.9)
-
Step 900
900
#503659
oklch(37.8% 0.067 317.1)
-
Step 950
950
#2F2034
oklch(27.1% 0.042 317.5)
#644270 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) | #3B4D72 | 0.070 |
| Deuteranopia (no green cones) | #43506F | 0.065 |
| Tritanopia (no blue cones) | #644853 | 0.056 |
| Achromatopsia (no color) | #4F4F4F | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644270
#644270
oklch(43.6% 0.084 316.9)
- #3B5C2C
#3B5C2C
oklch(43.7% 0.083 136.7)
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 #644270, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.059
- Dusty Grape #545775 ΔE 0.061
- Twilight #4E518B ΔE 0.062
- Brownish Purple #76424E ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.072
- Light Eggplant #894585 ΔE 0.078
- Purple Brown #673A3F ΔE 0.078
- Dark Mauve #874C62 ΔE 0.081
Use #644270 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.