#66535B
Closest named color: Dusty Grape (#545775). oklch(46.4% 0.028 351), rgb(102, 83, 91).
Aa
White text reads best on this color (7.11:1).
About this color
#66535B is a medium-dark close to neutral grey. In OKLCH its lightness is 46%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Dusty Grape (#545775), ΔE 0.048 away. White text reads best on it, at 7.11:1.
| Hue family | Neutrals |
| Lightness | medium-dark (46%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.95:1 |
| White text | 7.11:1 |
Values
| HEX | #66535B |
| RGB | rgb(102, 83, 91) |
| HSL | hsl(335, 10%, 36%) |
| OKLCH | oklch(46.4% 0.028 351) |
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 #66535B | 7.11:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #66535B | 2.95:1 | Fails | Lc 19.4 | Dividers and decoration only |
| #66535B text on white | 7.11:1 | AAA | Lc 84.7 | Fine for body text |
| #66535B text on black | 2.95:1 | Fails | Lc -17.3 | 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
#ECE9EA
oklch(93.7% 0.003 354.7)
-
Step 200
200
#DDD7DA
oklch(88.5% 0.008 345.4)
-
Step 300
300
#C8BDC1
oklch(80.9% 0.014 353.2)
-
Step 400
400
#AC9BA2
oklch(70.6% 0.022 350.8)
-
Step 500
500
#97838B
oklch(63.1% 0.027 351.8)
-
Step 600
600
#826C75
oklch(55.5% 0.031 351.6)
-
Step 700
700 (this color)
#66535B
oklch(46.4% 0.028 351)
-
Step 800
800
#594A50
oklch(42.6% 0.022 352)
-
Step 900
900
#493E43
oklch(37.7% 0.017 348.8)
-
Step 950
950
#2B2427
oklch(26.9% 0.012 350.2)
#66535B 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) | #55565B | 0.029 |
| Deuteranopia (no green cones) | #59595B | 0.027 |
| Tritanopia (no blue cones) | #695356 | 0.009 |
| Achromatopsia (no color) | #585858 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66535B
#66535B
oklch(46.4% 0.028 351)
- #4A5E57
#4A5E57
oklch(46.3% 0.027 171.8)
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 #66535B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.048
- Brownish Purple #76424E ΔE 0.050
- Slate #516572 ΔE 0.059
- Dim Gray #696969 ΔE 0.063
- Dark Mauve #874C62 ΔE 0.063
- YInMn Blue #415A77 ΔE 0.067
- Purple Brown #673A3F ΔE 0.071
- Dusk #4E5481 ΔE 0.071
Use #66535B 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.