#645F84
Closest named color: Dusty Grape (#545775). oklch(50.5% 0.058 290.3), rgb(100, 95, 132).
Aa
White text reads best on this color (5.97:1).
About this color
#645F84 is a medium-dark, muted purple. In OKLCH its lightness is 50%, its chroma 0.058 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.041 away. White text reads best on it, at 5.97:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.51:1 |
| White text | 5.97:1 |
Values
| HEX | #645F84 |
| RGB | rgb(100, 95, 132) |
| HSL | hsl(248, 16%, 45%) |
| OKLCH | oklch(50.5% 0.058 290.3) |
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 #645F84 | 5.97:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #645F84 | 3.51:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #645F84 text on white | 5.97:1 | AA | Lc 79.9 | Fine for body text |
| #645F84 text on black | 3.51:1 | AA large text | Lc -21.9 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9EF
oklch(93.6% 0.008 286.2)
-
Step 200
200
#D9D8E3
oklch(88.6% 0.015 290.3)
-
Step 300
300
#C0BED2
oklch(80.9% 0.028 290.4)
-
Step 400
400
#A09CBB
oklch(70.7% 0.045 291.1)
-
Step 500
500
#8984AB
oklch(63.2% 0.058 290.5)
-
Step 600
600
#736D96
oklch(55.6% 0.063 290.9)
-
Step 700
700 (this color)
#645F84
oklch(50.5% 0.058 290.3)
-
Step 800
800
#4E4B68
oklch(42.8% 0.048 289)
-
Step 900
900
#413E54
oklch(37.6% 0.037 290.7)
-
Step 950
950
#262531
oklch(27.1% 0.022 288.6)
#645F84 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) | #566486 | 0.023 |
| Deuteranopia (no green cones) | #566383 | 0.023 |
| Tritanopia (no blue cones) | #5D656C | 0.049 |
| Achromatopsia (no color) | #636363 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645F84
#645F84
oklch(50.5% 0.058 290.3)
- #666840
#666840
oklch(50.5% 0.059 110.8)
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 #645F84, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.041
- Dusky Blue #475F94 ΔE 0.047
- Muted Purple #805B87 ΔE 0.047
- Slate #516572 ΔE 0.048
- Dusk #4E5481 ΔE 0.049
- Dusty Purple #825F87 ΔE 0.050
- Denim #3B638C ΔE 0.054
- Dull Purple #84597E ΔE 0.054
Use #645F84 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.