#644476
Closest named color: Dusk (#4E5481). oklch(44.3% 0.088 312.6), rgb(100, 68, 118).
Aa
White text reads best on this color (7.98:1).
About this color
#644476 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.088 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.054 away. White text reads best on it, at 7.98:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.088) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.63:1 |
| White text | 7.98:1 |
Values
| HEX | #644476 |
| RGB | rgb(100, 68, 118) |
| HSL | hsl(278, 27%, 36%) |
| OKLCH | oklch(44.3% 0.088 312.6) |
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 #644476 | 7.98:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #644476 | 2.63:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #644476 text on white | 7.98:1 | AAA | Lc 87.5 | Fine for body text |
| #644476 text on black | 2.63:1 | Fails | Lc -14.6 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F1
oklch(93.6% 0.015 312.2)
-
Step 200
200
#E0D4E7
oklch(88.5% 0.029 313.3)
-
Step 300
300
#CCB8D9
oklch(81% 0.051 312.1)
-
Step 400
400
#B292C6
oklch(70.7% 0.082 312.1)
-
Step 500
500
#9F76B7
oklch(63.1% 0.105 312.4)
-
Step 600
600
#8A5EA3
oklch(55.6% 0.114 312.5)
-
Step 700
700
#754D8B
oklch(49% 0.106 312.7)
-
Step 800
800 (this color)
#644476
oklch(44.3% 0.088 312.6)
-
Step 900
900
#4E365C
oklch(37.7% 0.07 312.3)
-
Step 950
950
#2E2036
oklch(27.1% 0.044 312.7)
#644476 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) | #3B4F78 | 0.069 |
| Deuteranopia (no green cones) | #425175 | 0.063 |
| Tritanopia (no blue cones) | #624B57 | 0.061 |
| Achromatopsia (no color) | #515151 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #644476
#644476
oklch(44.3% 0.088 312.6)
- #405D27
#405D27
oklch(44.2% 0.088 132.4)
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 #644476, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.054
- Twilight #4E518B ΔE 0.054
- Dusty Grape #545775 ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.067
- Brownish Purple #76424E ΔE 0.073
- Light Eggplant #894585 ΔE 0.074
- Rebecca Purple #663399 ΔE 0.075
- Blueberry #464196 ΔE 0.076
Use #644476 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.