#645471
Closest named color: Dusty Grape (#545775). oklch(47.3% 0.05 309.5), rgb(100, 84, 113).
Aa
White text reads best on this color (6.88:1).
About this color
#645471 is a medium-dark, muted purple. In OKLCH its lightness is 47%, its chroma 0.050 and its hue 310°. 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 6.88:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.050) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.04:1 |
| White text | 6.88:1 |
Values
| HEX | #645471 |
| RGB | rgb(100, 84, 113) |
| HSL | hsl(273, 15%, 39%) |
| OKLCH | oklch(47.3% 0.05 309.5) |
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 #645471 | 6.88:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #645471 | 3.04:1 | AA large text | Lc 20.2 | Dividers and decoration only |
| #645471 text on white | 6.88:1 | AA | Lc 83.8 | Fine for body text |
| #645471 text on black | 3.04:1 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EBE9ED
oklch(93.7% 0.006 308.4)
-
Step 200
200
#DCD7E0
oklch(88.6% 0.013 310.5)
-
Step 300
300
#C5BDCD
oklch(81% 0.024 308.1)
-
Step 400
400
#A89AB3
oklch(70.6% 0.039 310.3)
-
Step 500
500
#9282A0
oklch(63.1% 0.048 309)
-
Step 600
600
#7D6B8B
oklch(55.6% 0.053 310.1)
-
Step 700
700 (this color)
#645471
oklch(47.3% 0.05 309.5)
-
Step 800
800
#564960
oklch(42.7% 0.041 310.2)
-
Step 900
900
#473D4F
oklch(37.7% 0.033 309.9)
-
Step 950
950
#29242E
oklch(27% 0.02 307.7)
#645471 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) | #4F5972 | 0.034 |
| Deuteranopia (no green cones) | #535A70 | 0.031 |
| Tritanopia (no blue cones) | #63585E | 0.037 |
| Achromatopsia (no color) | #5A5A5A | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645471
#645471
oklch(47.3% 0.05 309.5)
- #536143
#536143
oklch(47.2% 0.049 128.5)
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 #645471, 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 0.043
- YInMn Blue #415A77 ΔE 0.053
- Slate #516572 ΔE 0.055
- Twilight #4E518B ΔE 0.058
- Dull Purple #84597E ΔE 0.062
- Muted Purple #805B87 ΔE 0.063
- Dark Mauve #874C62 ΔE 0.065
Use #645471 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.