#645676
Closest named color: Dusty Grape (#545775). oklch(47.9% 0.053 304.4), rgb(100, 86, 118).
Aa
White text reads best on this color (6.69:1).
About this color
#645676 is a medium-dark, muted purple. In OKLCH its lightness is 48%, its chroma 0.053 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.026 away. White text reads best on it, at 6.69:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.13:1 |
| White text | 6.69:1 |
Values
| HEX | #645676 |
| RGB | rgb(100, 86, 118) |
| HSL | hsl(266, 16%, 40%) |
| OKLCH | oklch(47.9% 0.053 304.4) |
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 #645676 | 6.69:1 | AA | Lc -88.1 | Fine for body text |
| Black text on #645676 | 3.13:1 | AA large text | Lc 21.0 | Dividers and decoration only |
| #645676 text on white | 6.69:1 | AA | Lc 83.0 | Fine for body text |
| #645676 text on black | 3.13:1 | AA large text | Lc -18.9 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EBE9EE
oklch(93.7% 0.007 304.2)
-
Step 200
200
#DBD7E1
oklch(88.5% 0.014 304.1)
-
Step 300
300
#C4BDCE
oklch(80.9% 0.025 304.4)
-
Step 400
400
#A69BB6
oklch(70.8% 0.041 303.8)
-
Step 500
500
#9082A4
oklch(63.1% 0.053 303.7)
-
Step 600
600
#7B6B8F
oklch(55.6% 0.058 304.8)
-
Step 700
700 (this color)
#645676
oklch(47.9% 0.053 304.4)
-
Step 800
800
#544963
oklch(42.7% 0.044 303.9)
-
Step 900
900
#463D51
oklch(37.7% 0.035 305.2)
-
Step 950
950
#29242F
oklch(27.1% 0.021 305.6)
#645676 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) | #505B77 | 0.033 |
| Deuteranopia (no green cones) | #535C75 | 0.031 |
| Tritanopia (no blue cones) | #615A61 | 0.040 |
| Achromatopsia (no color) | #5C5C5C | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645676
#645676
oklch(47.9% 0.053 304.4)
- #576341
#576341
oklch(48% 0.054 124.2)
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 #645676, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.026
- Dusk #4E5481 ΔE 0.040
- YInMn Blue #415A77 ΔE 0.052
- Slate #516572 ΔE 0.053
- Twilight #4E518B ΔE 0.054
- Muted Purple #805B87 ΔE 0.057
- Dull Purple #84597E ΔE 0.059
- Dusky Blue #475F94 ΔE 0.061
Use #645676 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.