#645883
Closest named color: Dusty Grape (#545775). oklch(49% 0.069 296.6), rgb(100, 88, 131).
Aa
White text reads best on this color (6.43:1).
About this color
#645883 is a medium-dark, muted purple. In OKLCH its lightness is 49%, its chroma 0.069 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.035 away. White text reads best on it, at 6.43:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | muted (0.069) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.26:1 |
| White text | 6.43:1 |
Values
| HEX | #645883 |
| RGB | rgb(100, 88, 131) |
| HSL | hsl(257, 20%, 43%) |
| OKLCH | oklch(49% 0.069 296.6) |
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 #645883 | 6.43:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #645883 | 3.26:1 | AA large text | Lc 22.1 | Dividers and decoration only |
| #645883 text on white | 6.43:1 | AA | Lc 81.9 | Fine for body text |
| #645883 text on black | 3.26:1 | AA large text | Lc -20.0 | 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
#F6F5F8
oklch(97.2% 0.004 301.4)
-
Step 100
100
#EAE9F0
oklch(93.7% 0.009 292.8)
-
Step 200
200
#DAD7E4
oklch(88.5% 0.018 296.6)
-
Step 300
300
#C2BDD4
oklch(81% 0.032 295.6)
-
Step 400
400
#A39ABF
oklch(70.7% 0.054 296.1)
-
Step 500
500
#8D81AE
oklch(63% 0.068 296.6)
-
Step 600
600
#776A9A
oklch(55.5% 0.075 296.3)
-
Step 700
700 (this color)
#645883
oklch(49% 0.069 296.6)
-
Step 800
800
#52486B
oklch(42.6% 0.058 297)
-
Step 900
900
#443D57
oklch(37.8% 0.045 296.6)
-
Step 950
950
#282433
oklch(27.1% 0.028 296.7)
#645883 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) | #4E5F85 | 0.036 |
| Deuteranopia (no green cones) | #4F5E82 | 0.035 |
| Tritanopia (no blue cones) | #5E5F68 | 0.055 |
| Achromatopsia (no color) | #5F5F5F | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645883
#645883
oklch(49% 0.069 296.6)
- #5E6536
#5E6536
oklch(48.9% 0.069 116)
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 #645883, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.035
- Dusk #4E5481 ΔE 0.038
- Twilight #4E518B ΔE 0.045
- Dusky Blue #475F94 ΔE 0.048
- Muted Purple #805B87 ΔE 0.050
- Dull Purple #84597E ΔE 0.056
- Dusty Purple #825F87 ΔE 0.056
- YInMn Blue #415A77 ΔE 0.057
Use #645883 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.