#66544C
Closest named color: Brownish Purple (#76424E). oklch(46.2% 0.027 45.3), rgb(102, 84, 76).
Aa
White text reads best on this color (7.14:1).
About this color
#66544C is a medium-dark close to neutral grey. In OKLCH its lightness is 46%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Brownish Purple (#76424E), ΔE 0.057 away. White text reads best on it, at 7.14:1.
| Hue family | Neutrals |
| Lightness | medium-dark (46%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.93:1 |
| White text | 7.14:1 |
Values
| HEX | #66544C |
| RGB | rgb(102, 84, 76) |
| HSL | hsl(18, 15%, 35%) |
| OKLCH | oklch(46.2% 0.027 45.3) |
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 #66544C | 7.14:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #66544C | 2.93:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #66544C text on white | 7.14:1 | AAA | Lc 84.8 | Fine for body text |
| #66544C text on black | 2.93:1 | Fails | Lc -17.2 | 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
#ECE9E8
oklch(93.6% 0.004 39.5)
-
Step 200
200
#DDD8D5
oklch(88.5% 0.007 53.4)
-
Step 300
300
#C8BEBA
oklch(80.9% 0.013 43.3)
-
Step 400
400
#AD9D96
oklch(70.8% 0.021 45.2)
-
Step 500
500
#98857C
oklch(63.1% 0.027 47)
-
Step 600
600
#836E65
oklch(55.6% 0.03 44.5)
-
Step 700
700 (this color)
#66544C
oklch(46.2% 0.027 45.3)
-
Step 800
800
#5A4B45
oklch(42.6% 0.023 43)
-
Step 900
900
#4A3F3A
oklch(37.7% 0.018 45.9)
-
Step 950
950
#2B2522
oklch(27% 0.011 48.3)
#66544C 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) | #59564B | 0.022 |
| Deuteranopia (no green cones) | #5D594C | 0.020 |
| Tritanopia (no blue cones) | #6B5152 | 0.017 |
| Achromatopsia (no color) | #585858 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66544C
#66544C
oklch(46.2% 0.027 45.3)
- #495C64
#495C64
oklch(46.2% 0.027 225.4)
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 #66544C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.057
- Dim Gray #696969 ΔE 0.065
- Milk Chocolate #7F4E1E ΔE 0.066
- Slate #516572 ΔE 0.068
- Dusty Grape #545775 ΔE 0.068
- Purple Brown #673A3F ΔE 0.071
- Cocoa #875F42 ΔE 0.072
- Medium Brown #7F5112 ΔE 0.073
Use #66544C 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.