#66536F
Closest named color: Dusty Grape (#545775). oklch(47.2% 0.05 314.8), rgb(102, 83, 111).
Aa
White text reads best on this color (6.92:1).
About this color
#66536F is a medium-dark, muted purple. In OKLCH its lightness is 47%, its chroma 0.050 and its hue 315°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.030 away. White text reads best on it, at 6.92:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.050) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.03:1 |
| White text | 6.92:1 |
Values
| HEX | #66536F |
| RGB | rgb(102, 83, 111) |
| HSL | hsl(281, 14%, 38%) |
| OKLCH | oklch(47.2% 0.05 314.8) |
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 #66536F | 6.92:1 | AA | Lc -88.9 | Fine for body text |
| Black text on #66536F | 3.03:1 | AA large text | Lc 20.1 | Dividers and decoration only |
| #66536F text on white | 6.92:1 | AA | Lc 83.9 | Fine for body text |
| #66536F text on black | 3.03:1 | AA large text | Lc -18.0 | 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
#DCD7DF
oklch(88.5% 0.012 313.2)
-
Step 300
300
#C7BCCC
oklch(80.9% 0.025 315.5)
-
Step 400
400
#AA9AB2
oklch(70.8% 0.039 314.6)
-
Step 500
500
#95819F
oklch(63.2% 0.05 314.4)
-
Step 600
600
#7F6A89
oklch(55.5% 0.053 314.8)
-
Step 700
700 (this color)
#66536F
oklch(47.2% 0.05 314.8)
-
Step 800
800
#58485F
oklch(42.7% 0.042 315.5)
-
Step 900
900
#483D4E
oklch(37.8% 0.032 313.6)
-
Step 950
950
#2A242D
oklch(27.1% 0.018 314.5)
#66536F 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) | #4F5970 | 0.039 |
| Deuteranopia (no green cones) | #535A6E | 0.035 |
| Tritanopia (no blue cones) | #66565D | 0.034 |
| Achromatopsia (no color) | #5A5A5A | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66536F
#66536F
oklch(47.2% 0.05 314.8)
- #4F6245
#4F6245
oklch(47.2% 0.051 135.1)
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 #66536F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.030
- Dusk #4E5481 ΔE 0.047
- YInMn Blue #415A77 ΔE 0.056
- Slate #516572 ΔE 0.058
- Dull Purple #84597E ΔE 0.061
- Twilight #4E518B ΔE 0.061
- Dark Mauve #874C62 ΔE 0.061
- Muted Purple #805B87 ΔE 0.063
Use #66536F 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.