#66536D
Closest named color: Dusty Grape (#545775). oklch(47.1% 0.047 316.9), rgb(102, 83, 109).
Aa
White text reads best on this color (6.94:1).
About this color
#66536D is a medium-dark, muted purple. In OKLCH its lightness is 47%, its chroma 0.047 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.031 away. White text reads best on it, at 6.94:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.047) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.02:1 |
| White text | 6.94:1 |
Values
| HEX | #66536D |
| RGB | rgb(102, 83, 109) |
| HSL | hsl(284, 14%, 38%) |
| OKLCH | oklch(47.1% 0.047 316.9) |
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 #66536D | 6.94:1 | AA | Lc -89.0 | Fine for body text |
| Black text on #66536D | 3.02:1 | AA large text | Lc 20.0 | Dividers and decoration only |
| #66536D text on white | 6.94:1 | AA | Lc 84.0 | Fine for body text |
| #66536D text on black | 3.02:1 | AA large text | Lc -17.9 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#ECE8ED
oklch(93.6% 0.008 319.4)
-
Step 200
200
#DDD7DF
oklch(88.6% 0.013 317.7)
-
Step 300
300
#C7BCCB
oklch(80.9% 0.024 317.1)
-
Step 400
400
#AA9AB0
oklch(70.7% 0.036 316.9)
-
Step 500
500
#95819D
oklch(63.1% 0.047 316.3)
-
Step 600
600
#806A87
oklch(55.6% 0.051 317.9)
-
Step 700
700 (this color)
#66536D
oklch(47.1% 0.047 316.9)
-
Step 800
800
#58485D
oklch(42.6% 0.04 318.1)
-
Step 900
900
#483D4D
oklch(37.8% 0.03 315.3)
-
Step 950
950
#2A242D
oklch(27.1% 0.018 314.5)
#66536D 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) | #50586E | 0.036 |
| Deuteranopia (no green cones) | #545A6C | 0.034 |
| Tritanopia (no blue cones) | #66565C | 0.032 |
| Achromatopsia (no color) | #5A5A5A | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66536D
#66536D
oklch(47.1% 0.047 316.9)
- #4F6247
#4F6247
oklch(47.2% 0.048 136.6)
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 #66536D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.031
- Dusk #4E5481 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.057
- Slate #516572 ΔE 0.058
- Brownish Purple #76424E ΔE 0.061
- Dark Mauve #874C62 ΔE 0.061
- Dull Purple #84597E ΔE 0.062
- Twilight #4E518B ΔE 0.064
Use #66536D 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.