#66517C
Closest named color: Dusty Grape (#545775). oklch(47.4% 0.072 306.2), rgb(102, 81, 124).
Aa
White text reads best on this color (6.92:1).
About this color
#66517C is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.072 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.036 away. White text reads best on it, at 6.92:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.03:1 |
| White text | 6.92:1 |
Values
| HEX | #66517C |
| RGB | rgb(102, 81, 124) |
| HSL | hsl(269, 21%, 40%) |
| OKLCH | oklch(47.4% 0.072 306.2) |
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 #66517C | 6.92:1 | AA | Lc -88.9 | Fine for body text |
| Black text on #66517C | 3.03:1 | AA large text | Lc 20.1 | Dividers and decoration only |
| #66517C text on white | 6.92:1 | AA | Lc 83.9 | Fine for body text |
| #66517C text on black | 3.03:1 | AA large text | Lc -18.1 | 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
#EBE8EF
oklch(93.5% 0.01 305.4)
-
Step 200
200
#DCD6E4
oklch(88.5% 0.02 305.2)
-
Step 300
300
#C6BBD3
oklch(80.9% 0.035 306.2)
-
Step 400
400
#A998BD
oklch(70.7% 0.056 305.8)
-
Step 500
500
#947EAC
oklch(63% 0.072 306.2)
-
Step 600
600
#7F6797
oklch(55.5% 0.078 306.9)
-
Step 700
700 (this color)
#66517C
oklch(47.4% 0.072 306.2)
-
Step 800
800
#574669
oklch(42.6% 0.06 306.2)
-
Step 900
900
#483B55
oklch(37.7% 0.046 307.1)
-
Step 950
950
#2A2332
oklch(27.1% 0.029 305.8)
#66517C 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) | #48597E | 0.049 |
| Deuteranopia (no green cones) | #4D5A7B | 0.045 |
| Tritanopia (no blue cones) | #635761 | 0.053 |
| Achromatopsia (no color) | #5A5A5A | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66517C
#66517C
oklch(47.4% 0.072 306.2)
- #526335
#526335
oklch(47.4% 0.072 125.6)
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 #66517C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.036
- Dusk #4E5481 ΔE 0.039
- Twilight #4E518B ΔE 0.045
- Muted Purple #805B87 ΔE 0.057
- Dull Purple #84597E ΔE 0.060
- YInMn Blue #415A77 ΔE 0.061
- Dusky Blue #475F94 ΔE 0.062
- Dusty Purple #825F87 ΔE 0.066
Use #66517C 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.