#664474
Closest named color: Dusk (#4E5481). oklch(44.4% 0.086 315.6), rgb(102, 68, 116).
Aa
White text reads best on this color (7.94:1).
About this color
#664474 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.086 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.056 away. White text reads best on it, at 7.94:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.64:1 |
| White text | 7.94:1 |
Values
| HEX | #664474 |
| RGB | rgb(102, 68, 116) |
| HSL | hsl(283, 26%, 36%) |
| OKLCH | oklch(44.4% 0.086 315.6) |
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 #664474 | 7.94:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #664474 | 2.64:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #664474 text on white | 7.94:1 | AAA | Lc 87.4 | Fine for body text |
| #664474 text on black | 2.64:1 | Fails | Lc -14.7 | 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
#EEE7F1
oklch(93.6% 0.015 316)
-
Step 200
200
#E0D4E6
oklch(88.5% 0.028 314.7)
-
Step 300
300
#CDB7D7
oklch(80.8% 0.05 315.3)
-
Step 400
400
#B491C3
oklch(70.6% 0.081 315.6)
-
Step 500
500
#A176B4
oklch(63.1% 0.102 315.1)
-
Step 600
600
#8C5DA0
oklch(55.5% 0.113 315.3)
-
Step 700
700
#774D88
oklch(49.1% 0.103 315.7)
-
Step 800
800 (this color)
#664474
oklch(44.4% 0.086 315.6)
-
Step 900
900
#4F365A
oklch(37.7% 0.067 315.1)
-
Step 950
950
#2E2035
oklch(27% 0.043 314)
#664474 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) | #3C4F76 | 0.071 |
| Deuteranopia (no green cones) | #455273 | 0.064 |
| Tritanopia (no blue cones) | #654A56 | 0.058 |
| Achromatopsia (no color) | #515151 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664474
#664474
oklch(44.4% 0.086 315.6)
- #3D5E2C
#3D5E2C
oklch(44.3% 0.086 135.9)
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 #664474, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.056
- Twilight #4E518B ΔE 0.058
- Dusty Grape #545775 ΔE 0.059
- Brownish Purple #76424E ΔE 0.068
- Light Eggplant #894585 ΔE 0.072
- Dark Slate Blue #483D8B ΔE 0.072
- Dark Mauve #874C62 ΔE 0.077
- Rebecca Purple #663399 ΔE 0.078
Use #664474 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.