#645773
Closest named color: Dusty Grape (#545775). oklch(48% 0.047 305.8), rgb(100, 87, 115).
Aa
White text reads best on this color (6.66:1).
About this color
#645773 is a medium-dark, muted purple. In OKLCH its lightness is 48%, its chroma 0.047 and its hue 306°. 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 6.66:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.047) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.15:1 |
| White text | 6.66:1 |
Values
| HEX | #645773 |
| RGB | rgb(100, 87, 115) |
| HSL | hsl(268, 14%, 40%) |
| OKLCH | oklch(48% 0.047 305.8) |
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 #645773 | 6.66:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #645773 | 3.15:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #645773 text on white | 6.66:1 | AA | Lc 82.9 | Fine for body text |
| #645773 text on black | 3.15:1 | AA large text | Lc -19.0 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EBE9ED
oklch(93.7% 0.006 308.4)
-
Step 200
200
#DBD7E0
oklch(88.5% 0.013 306)
-
Step 300
300
#C4BDCD
oklch(80.9% 0.023 305.5)
-
Step 400
400
#A69BB3
oklch(70.7% 0.037 306.1)
-
Step 500
500
#9083A0
oklch(63.2% 0.045 305.4)
-
Step 600
600
#7A6C8B
oklch(55.6% 0.05 305.3)
-
Step 700
700 (this color)
#645773
oklch(48% 0.047 305.8)
-
Step 800
800
#544A60
oklch(42.8% 0.038 305.5)
-
Step 900
900
#453E4F
oklch(37.8% 0.03 303.7)
-
Step 950
950
#29242E
oklch(27% 0.02 307.7)
#645773 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) | #525C74 | 0.030 |
| Deuteranopia (no green cones) | #555C72 | 0.027 |
| Tritanopia (no blue cones) | #625B61 | 0.036 |
| Achromatopsia (no color) | #5C5C5C | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645773
#645773
oklch(48% 0.047 305.8)
- #576346
#576346
oklch(48.1% 0.047 126.4)
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 #645773, 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 0.044
- Slate #516572 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.051
- Twilight #4E518B ΔE 0.059
- Dull Purple #84597E ΔE 0.059
- Muted Purple #805B87 ΔE 0.059
- Dim Gray #696969 ΔE 0.062
Use #645773 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.