#66564C
Closest named color: Dim Gray (#696969). oklch(46.6% 0.026 53.9), rgb(102, 86, 76).
Aa
White text reads best on this color (6.99:1).
About this color
#66564C is a medium-dark close to neutral grey. In OKLCH its lightness is 47%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Dim Gray (#696969), ΔE 0.061 away. White text reads best on it, at 6.99:1.
| Hue family | Neutrals |
| Lightness | medium-dark (47%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.00:1 |
| White text | 6.99:1 |
Values
| HEX | #66564C |
| RGB | rgb(102, 86, 76) |
| HSL | hsl(23, 15%, 35%) |
| OKLCH | oklch(46.6% 0.026 53.9) |
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 #66564C | 6.99:1 | AA | Lc -89.2 | Fine for body text |
| Black text on #66564C | 3.00:1 | AA large text | Lc 19.8 | Dividers and decoration only |
| #66564C text on white | 6.99:1 | AA | Lc 84.2 | Fine for body text |
| #66564C text on black | 3.00:1 | AA large text | Lc -17.7 | 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
#F6F5F4
oklch(97.1% 0.002 67.8)
-
Step 100
100
#ECE9E7
oklch(93.6% 0.004 56.4)
-
Step 200
200
#DDD8D5
oklch(88.5% 0.007 53.4)
-
Step 300
300
#C8BFB9
oklch(81% 0.013 56.2)
-
Step 400
400
#AB9D95
oklch(70.6% 0.02 51.9)
-
Step 500
500
#97867B
oklch(63.2% 0.026 55)
-
Step 600
600
#816F64
oklch(55.5% 0.028 53.4)
-
Step 700
700 (this color)
#66564C
oklch(46.6% 0.026 53.9)
-
Step 800
800
#594C44
oklch(42.7% 0.022 53.5)
-
Step 900
900
#493F39
oklch(37.6% 0.017 52.9)
-
Step 950
950
#2B2522
oklch(27% 0.011 48.3)
#66564C 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) | #5A574B | 0.020 |
| Deuteranopia (no green cones) | #5E5A4C | 0.017 |
| Tritanopia (no blue cones) | #6B5353 | 0.019 |
| Achromatopsia (no color) | #595959 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66564C
#66564C
oklch(46.6% 0.026 53.9)
- #4C5C66
#4C5C66
oklch(46.5% 0.026 235.5)
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 #66564C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.061
- Brownish Purple #76424E ΔE 0.063
- Milk Chocolate #7F4E1E ΔE 0.065
- Slate #516572 ΔE 0.065
- Cocoa #875F42 ΔE 0.068
- Dusty Grape #545775 ΔE 0.070
- Dark Taupe #7F684E ΔE 0.071
- Medium Brown #7F5112 ΔE 0.071
Use #66564C 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.