#645653
Closest named color: Slate (#516572). oklch(46.6% 0.019 32.1), rgb(100, 86, 83).
Aa
White text reads best on this color (7.00:1).
About this color
#645653 is a medium-dark close to neutral grey. In OKLCH its lightness is 47%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.058 away. White text reads best on it, at 7.00:1.
| Hue family | Neutrals |
| Lightness | medium-dark (47%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 2.99:1 |
| White text | 7.00:1 |
Values
| HEX | #645653 |
| RGB | rgb(100, 86, 83) |
| HSL | hsl(11, 9%, 36%) |
| OKLCH | oklch(46.6% 0.019 32.1) |
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 #645653 | 7.00:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #645653 | 2.99:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #645653 text on white | 7.00:1 | AAA | Lc 84.3 | Fine for body text |
| #645653 text on black | 2.99:1 | Fails | 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
#F6F5F5
oklch(97.1% 0.001 17.2)
-
Step 100
100
#EBE9E9
oklch(93.6% 0.002 17.2)
-
Step 200
200
#DCD8D7
oklch(88.5% 0.005 34.3)
-
Step 300
300
#C6BEBD
oklch(80.8% 0.009 26)
-
Step 400
400
#AA9D9B
oklch(70.7% 0.016 28.1)
-
Step 500
500
#958682
oklch(63.2% 0.019 35.3)
-
Step 600
600
#7F6F6C
oklch(55.6% 0.021 30.4)
-
Step 700
700 (this color)
#645653
oklch(46.6% 0.019 32.1)
-
Step 800
800
#574C4A
oklch(42.7% 0.015 30)
-
Step 900
900
#483F3D
oklch(37.6% 0.013 32.6)
-
Step 950
950
#2A2524
oklch(27% 0.008 31.1)
#645653 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) | #595753 | 0.018 |
| Deuteranopia (no green cones) | #5C5A53 | 0.017 |
| Tritanopia (no blue cones) | #685455 | 0.010 |
| Achromatopsia (no color) | #595959 | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645653
#645653
oklch(46.6% 0.019 32.1)
- #4E5D60
#4E5D60
oklch(46.7% 0.019 211.1)
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 #645653, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.058
- Dim Gray #696969 ΔE 0.058
- Dusty Grape #545775 ΔE 0.059
- Brownish Purple #76424E ΔE 0.060
- YInMn Blue #415A77 ΔE 0.072
- Cocoa #875F42 ΔE 0.074
- Dark Mauve #874C62 ΔE 0.074
- Milk Chocolate #7F4E1E ΔE 0.075
Use #645653 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.