#664D76
Closest named color: Dusty Grape (#545775). oklch(46.3% 0.071 311.6), rgb(102, 77, 118).
Aa
White text reads best on this color (7.27:1).
About this color
#664D76 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.071 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.040 away. White text reads best on it, at 7.27:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.88:1 |
| White text | 7.27:1 |
Values
| HEX | #664D76 |
| RGB | rgb(102, 77, 118) |
| HSL | hsl(277, 21%, 38%) |
| OKLCH | oklch(46.3% 0.071 311.6) |
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 #664D76 | 7.27:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #664D76 | 2.88:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #664D76 text on white | 7.27:1 | AAA | Lc 85.2 | Fine for body text |
| #664D76 text on black | 2.88:1 | Fails | Lc -16.8 | 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
#F6F5F8
oklch(97.2% 0.004 301.4)
-
Step 100
100
#ECE8EF
oklch(93.6% 0.01 311.2)
-
Step 200
200
#DDD6E3
oklch(88.5% 0.019 309.8)
-
Step 300
300
#C8BBD1
oklch(81% 0.034 311.7)
-
Step 400
400
#AC97BA
oklch(70.7% 0.055 311.8)
-
Step 500
500
#987DA9
oklch(63.1% 0.072 312.1)
-
Step 600
600
#826694
oklch(55.5% 0.077 311.7)
-
Step 700
700 (this color)
#664D76
oklch(46.3% 0.071 311.6)
-
Step 800
800
#5A4667
oklch(42.8% 0.059 311.6)
-
Step 900
900
#4A3B54
oklch(37.9% 0.046 311.5)
-
Step 950
950
#2B2231
oklch(26.9% 0.03 311.5)
#664D76 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) | #465578 | 0.053 |
| Deuteranopia (no green cones) | #4C5775 | 0.049 |
| Tritanopia (no blue cones) | #64525C | 0.050 |
| Achromatopsia (no color) | #575757 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664D76
#664D76
oklch(46.3% 0.071 311.6)
- #4A6136
#4A6136
oklch(46.2% 0.071 131.6)
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 #664D76, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.040
- Dusk #4E5481 ΔE 0.043
- Twilight #4E518B ΔE 0.050
- YInMn Blue #415A77 ΔE 0.064
- Muted Purple #805B87 ΔE 0.065
- Dull Purple #84597E ΔE 0.066
- Brownish Purple #76424E ΔE 0.068
- Dark Mauve #874C62 ΔE 0.068
Use #664D76 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.