#645667
Closest named color: Dusty Grape (#545775). oklch(47.3% 0.032 320.3), rgb(100, 86, 103).
Aa
White text reads best on this color (6.84:1).
About this color
#645667 is a medium-dark, muted purple. In OKLCH its lightness is 47%, its chroma 0.032 and its hue 320°. 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 6.84:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.032) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.06:1 |
| White text | 6.84:1 |
Values
| HEX | #645667 |
| RGB | rgb(100, 86, 103) |
| HSL | hsl(289, 9%, 37%) |
| OKLCH | oklch(47.3% 0.032 320.3) |
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 #645667 | 6.84:1 | AA | Lc -88.6 | Fine for body text |
| Black text on #645667 | 3.06:1 | AA large text | Lc 20.4 | Dividers and decoration only |
| #645667 text on white | 6.84:1 | AA | Lc 83.6 | Fine for body text |
| #645667 text on black | 3.06:1 | 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
#A89CAA
oklch(70.7% 0.024 321.4)
-
Step 500
500
#928496
oklch(63.2% 0.031 318.7)
-
Step 600
600
#7D6D80
oklch(55.6% 0.035 320.9)
-
Step 700
700 (this color)
#645667
oklch(47.3% 0.032 320.3)
-
Step 800
800
#564A58
oklch(42.6% 0.027 321.4)
-
Step 900
900
#473E48
oklch(37.7% 0.021 322.8)
-
Step 950
950
#29242A
oklch(26.8% 0.013 320.6)
#645667 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) | #545A68 | 0.027 |
| Deuteranopia (no green cones) | #575B66 | 0.025 |
| Tritanopia (no blue cones) | #64585C | 0.021 |
| Achromatopsia (no color) | #5B5B5B | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645667
#645667
oklch(47.3% 0.032 320.3)
- #52604F
#52604F
oklch(47.2% 0.032 140.1)
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 #645667, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.033
- Slate #516572 ΔE 0.048
- YInMn Blue #415A77 ΔE 0.055
- Dusk #4E5481 ΔE 0.056
- Dim Gray #696969 ΔE 0.058
- Brownish Purple #76424E ΔE 0.062
- Dark Mauve #874C62 ΔE 0.065
- Dull Purple #84597E ΔE 0.068
Use #645667 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.