#645366
Closest named color: Dusty Grape (#545775). oklch(46.6% 0.037 322.8), rgb(100, 83, 102).
Aa
White text reads best on this color (7.06:1).
About this color
#645366 is a medium-dark, muted purple. In OKLCH its lightness is 47%, its chroma 0.037 and its hue 323°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.033 away. White text reads best on it, at 7.06:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.037) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.97:1 |
| White text | 7.06:1 |
Values
| HEX | #645366 |
| RGB | rgb(100, 83, 102) |
| HSL | hsl(294, 10%, 36%) |
| OKLCH | oklch(46.6% 0.037 322.8) |
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 #645366 | 7.06:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #645366 | 2.97:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #645366 text on white | 7.06:1 | AAA | Lc 84.5 | Fine for body text |
| #645366 text on black | 2.97:1 | Fails | Lc -17.5 | 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
#F6F5F6
oklch(97.1% 0.002 325.6)
-
Step 100
100
#EBE9EC
oklch(93.6% 0.005 314.8)
-
Step 200
200
#DCD7DD
oklch(88.5% 0.01 320.5)
-
Step 300
300
#C6BDC7
oklch(80.9% 0.017 322.7)
-
Step 400
400
#AA9BAB
oklch(70.7% 0.029 324)
-
Step 500
500
#958297
oklch(63.1% 0.038 323)
-
Step 600
600
#7F6C81
oklch(55.6% 0.039 323.1)
-
Step 700
700 (this color)
#645366
oklch(46.6% 0.037 322.8)
-
Step 800
800
#574A59
oklch(42.8% 0.03 321.8)
-
Step 900
900
#483D49
oklch(37.6% 0.025 323.4)
-
Step 950
950
#2A242B
oklch(27% 0.015 321.4)
#645366 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) | #515767 | 0.031 |
| Deuteranopia (no green cones) | #555965 | 0.029 |
| Tritanopia (no blue cones) | #655559 | 0.024 |
| Achromatopsia (no color) | #585858 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645366
#645366
oklch(46.6% 0.037 322.8)
- #4E5F4C
#4E5F4C
oklch(46.5% 0.037 142.2)
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 #645366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.033
- Dusk #4E5481 ΔE 0.055
- Slate #516572 ΔE 0.055
- YInMn Blue #415A77 ΔE 0.056
- Brownish Purple #76424E ΔE 0.056
- Dark Mauve #874C62 ΔE 0.063
- Dim Gray #696969 ΔE 0.066
- Dull Purple #84597E ΔE 0.070
Use #645366 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.