#645668
Closest named color: Dusty Grape (#545775). oklch(47.3% 0.033 318.7), rgb(100, 86, 104).
Aa
White text reads best on this color (6.83:1).
About this color
#645668 is a medium-dark, muted purple. In OKLCH its lightness is 47%, its chroma 0.033 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.032 away. White text reads best on it, at 6.83:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.07:1 |
| White text | 6.83:1 |
Values
| HEX | #645668 |
| RGB | rgb(100, 86, 104) |
| HSL | hsl(287, 9%, 37%) |
| OKLCH | oklch(47.3% 0.033 318.7) |
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 #645668 | 6.83:1 | AA | Lc -88.6 | Fine for body text |
| Black text on #645668 | 3.07:1 | AA large text | Lc 20.4 | Dividers and decoration only |
| #645668 text on white | 6.83:1 | AA | Lc 83.6 | Fine for body text |
| #645668 text on black | 3.07:1 | AA large text | Lc -18.3 | 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
#C5BDC7
oklch(80.8% 0.016 319.5)
-
Step 400
400
#A89CAB
oklch(70.8% 0.025 319.5)
-
Step 500
500
#928397
oklch(63% 0.034 317.7)
-
Step 600
600
#7D6D81
oklch(55.7% 0.036 319.5)
-
Step 700
700 (this color)
#645668
oklch(47.3% 0.033 318.7)
-
Step 800
800
#564A59
oklch(42.7% 0.029 319.5)
-
Step 900
900
#473E49
oklch(37.7% 0.022 320.1)
-
Step 950
950
#29242B
oklch(26.9% 0.015 316.4)
#645668 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) | #545A69 | 0.027 |
| Deuteranopia (no green cones) | #575B67 | 0.025 |
| Tritanopia (no blue cones) | #64585C | 0.022 |
| Achromatopsia (no color) | #5B5B5B | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645668
#645668
oklch(47.3% 0.033 318.7)
- #52614E
#52614E
oklch(47.4% 0.035 139.1)
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 #645668, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.032
- Slate #516572 ΔE 0.048
- YInMn Blue #415A77 ΔE 0.054
- Dusk #4E5481 ΔE 0.055
- Dim Gray #696969 ΔE 0.058
- Brownish Purple #76424E ΔE 0.063
- Dark Mauve #874C62 ΔE 0.065
- Dull Purple #84597E ΔE 0.067
Use #645668 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.