#573B96
Closest named color: Blueberry (#464196). oklch(43.3% 0.143 293.8), rgb(87, 59, 150).
Aa
White text reads best on this color (8.49:1).
About this color
#573B96 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.143 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.031 away. White text reads best on it, at 8.49:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Blueberry (#464196) |
| Black text | 2.47:1 |
| White text | 8.49:1 |
Values
| HEX | #573B96 |
| RGB | rgb(87, 59, 150) |
| HSL | hsl(258, 44%, 41%) |
| OKLCH | oklch(43.3% 0.143 293.8) |
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 #573B96 | 8.49:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #573B96 | 2.47:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #573B96 text on white | 8.49:1 | AAA | Lc 88.9 | Fine for body text |
| #573B96 text on black | 2.47:1 | Fails | Lc -13.3 | Not readable |
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 800.
-
Step 50
50
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#DAD4F6
oklch(88.5% 0.047 293.5)
-
Step 300
300
#C3B7F2
oklch(81% 0.083 293.8)
-
Step 400
400
#A58FEB
oklch(70.7% 0.133 293.7)
-
Step 500
500
#9170E5
oklch(63.1% 0.171 294)
-
Step 600
600
#7C55D3
oklch(55.6% 0.185 293.8)
-
Step 700
700
#6944B7
oklch(49.1% 0.173 293.9)
-
Step 800
800 (this color)
#573B96
oklch(43.3% 0.143 293.8)
-
Step 900
900
#463276
oklch(37.7% 0.112 293.9)
-
Step 950
950
#291E45
oklch(27% 0.071 294.2)
#573B96 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) | #004E99 | 0.095 |
| Deuteranopia (no green cones) | #0A4B94 | 0.091 |
| Tritanopia (no blue cones) | #464F62 | 0.115 |
| Achromatopsia (no color) | #4D4D4D | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573B96
#573B96
oklch(43.3% 0.143 293.8)
- #515600
#515600
oklch(43.4% 0.097 113.6)
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 #573B96, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.031
- Rebecca Purple #663399 ΔE 0.032
- Dark Slate Blue #483D8B ΔE 0.032
- Twilight #4E518B ΔE 0.063
- Blue With A Hint Of Purple #533CC6 ΔE 0.077
- Chrysanthemum #560BAD ΔE 0.078
- Dusk #4E5481 ΔE 0.080
- Bluey Purple #6241C7 ΔE 0.081
Use #573B96 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.