#645379
Closest named color: Dusty Grape (#545775). oklch(47.4% 0.063 304.6), rgb(100, 83, 121).
Aa
White text reads best on this color (6.87:1).
About this color
#645379 is a medium-dark, muted purple. In OKLCH its lightness is 47%, its chroma 0.063 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.029 away. White text reads best on it, at 6.87:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.063) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.05:1 |
| White text | 6.87:1 |
Values
| HEX | #645379 |
| RGB | rgb(100, 83, 121) |
| HSL | hsl(267, 19%, 40%) |
| OKLCH | oklch(47.4% 0.063 304.6) |
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 #645379 | 6.87:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #645379 | 3.05:1 | AA large text | Lc 20.3 | Dividers and decoration only |
| #645379 text on white | 6.87:1 | AA | Lc 83.7 | Fine for body text |
| #645379 text on black | 3.05:1 | AA large text | Lc -18.2 | 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
#EBE8EF
oklch(93.5% 0.01 305.4)
-
Step 200
200
#DBD6E2
oklch(88.4% 0.017 304.8)
-
Step 300
300
#C5BCD1
oklch(80.9% 0.031 305)
-
Step 400
400
#A799BA
oklch(70.6% 0.05 304.4)
-
Step 500
500
#9280A9
oklch(63.1% 0.064 304.6)
-
Step 600
600
#7C6994
oklch(55.5% 0.069 304.5)
-
Step 700
700 (this color)
#645379
oklch(47.4% 0.063 304.6)
-
Step 800
800
#554866
oklch(42.7% 0.051 304.1)
-
Step 900
900
#463C53
oklch(37.6% 0.041 304.4)
-
Step 950
950
#292331
oklch(26.9% 0.027 304.2)
#645379 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) | #4B5A7B | 0.041 |
| Deuteranopia (no green cones) | #4F5A78 | 0.037 |
| Tritanopia (no blue cones) | #615961 | 0.049 |
| Achromatopsia (no color) | #5A5A5A | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645379
#645379
oklch(47.4% 0.063 304.6)
- #54623A
#54623A
oklch(47.4% 0.063 124.5)
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 #645379, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.029
- Dusk #4E5481 ΔE 0.036
- Twilight #4E518B ΔE 0.047
- YInMn Blue #415A77 ΔE 0.055
- Muted Purple #805B87 ΔE 0.058
- Dusky Blue #475F94 ΔE 0.060
- Dull Purple #84597E ΔE 0.060
- Slate #516572 ΔE 0.063
Use #645379 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.