#645355
Closest named color: Brownish Purple (#76424E). oklch(46% 0.023 10), rgb(100, 83, 85).
Aa
White text reads best on this color (7.21:1).
About this color
#645355 is a medium-dark close to neutral grey. In OKLCH its lightness is 46%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Brownish Purple (#76424E), ΔE 0.053 away. White text reads best on it, at 7.21:1.
| Hue family | Neutrals |
| Lightness | medium-dark (46%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.91:1 |
| White text | 7.21:1 |
Values
| HEX | #645355 |
| RGB | rgb(100, 83, 85) |
| HSL | hsl(353, 9%, 36%) |
| OKLCH | oklch(46% 0.023 10) |
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 #645355 | 7.21:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #645355 | 2.91:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #645355 text on white | 7.21:1 | AAA | Lc 85.1 | Fine for body text |
| #645355 text on black | 2.91:1 | Fails | Lc -17.0 | 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
#ECE9E9
oklch(93.6% 0.003 17.2)
-
Step 200
200
#DDD7D8
oklch(88.4% 0.007 5.6)
-
Step 300
300
#C7BEBF
oklch(80.9% 0.01 9.6)
-
Step 400
400
#AB9C9E
oklch(70.6% 0.018 8.4)
-
Step 500
500
#968486
oklch(63% 0.022 10.1)
-
Step 600
600
#816E70
oklch(55.7% 0.024 10.7)
-
Step 700
700 (this color)
#645355
oklch(46% 0.023 10)
-
Step 800
800
#594B4D
oklch(42.8% 0.019 8.2)
-
Step 900
900
#493E40
oklch(37.6% 0.016 5.5)
-
Step 950
950
#2B2525
oklch(27.1% 0.009 17.7)
#645355 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) | #555555 | 0.025 |
| Deuteranopia (no green cones) | #595855 | 0.023 |
| Tritanopia (no blue cones) | #685254 | 0.007 |
| Achromatopsia (no color) | #575757 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645355
#645355
oklch(46% 0.023 10)
- #4A5C5B
#4A5C5B
oklch(45.9% 0.022 192.2)
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 #645355, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.053
- Dusty Grape #545775 ΔE 0.054
- Slate #516572 ΔE 0.061
- Dim Gray #696969 ΔE 0.065
- Purple Brown #673A3F ΔE 0.069
- YInMn Blue #415A77 ΔE 0.070
- Dark Mauve #874C62 ΔE 0.070
- Dusk #4E5481 ΔE 0.078
Use #645355 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.