#66575E
Closest named color: Dusty Grape (#545775). oklch(47.4% 0.022 348.1), rgb(102, 87, 94).
Aa
White text reads best on this color (6.79:1).
About this color
#66575E is a medium-dark close to neutral grey. In OKLCH its lightness is 47%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Dusty Grape (#545775), ΔE 0.046 away. White text reads best on it, at 6.79:1.
| Hue family | Neutrals |
| Lightness | medium-dark (47%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.08:1 |
| White text | 6.79:1 |
Values
| HEX | #66575E |
| RGB | rgb(102, 87, 94) |
| HSL | hsl(332, 8%, 37%) |
| OKLCH | oklch(47.4% 0.022 348.1) |
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 #66575E | 6.79:1 | AA | Lc -88.5 | Fine for body text |
| Black text on #66575E | 3.08:1 | AA large text | Lc 20.6 | Dividers and decoration only |
| #66575E text on white | 6.79:1 | AA | Lc 83.5 | Fine for body text |
| #66575E text on black | 3.08:1 | AA large text | Lc -18.5 | 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
#F6F5F5
oklch(97.1% 0.001 17.2)
-
Step 100
100
#EBE9EA
oklch(93.6% 0.003 345.2)
-
Step 200
200
#DCD7DA
oklch(88.4% 0.007 340.4)
-
Step 300
300
#C6BEC2
oklch(80.9% 0.01 345.5)
-
Step 400
400
#A99CA2
oklch(70.6% 0.017 347.8)
-
Step 500
500
#94848C
oklch(63% 0.022 346.1)
-
Step 600
600
#7F6E76
oklch(55.7% 0.024 347.8)
-
Step 700
700 (this color)
#66575E
oklch(47.4% 0.022 348.1)
-
Step 800
800
#574B51
oklch(42.7% 0.019 346.2)
-
Step 900
900
#483F43
oklch(37.8% 0.014 349.1)
-
Step 950
950
#2A2527
oklch(27.1% 0.008 351.5)
#66575E 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) | #585A5E | 0.024 |
| Deuteranopia (no green cones) | #5B5C5E | 0.022 |
| Tritanopia (no blue cones) | #685759 | 0.009 |
| Achromatopsia (no color) | #5B5B5B | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66575E
#66575E
oklch(47.4% 0.022 348.1)
- #506059
#506059
oklch(47.3% 0.023 167.1)
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 #66575E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.046
- Slate #516572 ΔE 0.050
- Dim Gray #696969 ΔE 0.052
- Brownish Purple #76424E ΔE 0.060
- YInMn Blue #415A77 ΔE 0.064
- Dark Mauve #874C62 ΔE 0.065
- Dusk #4E5481 ΔE 0.071
- Dull Purple #84597E ΔE 0.075
Use #66575E 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.