#573F97
Closest named color: Blueberry (#464196). oklch(44.1% 0.138 292.4), rgb(87, 63, 151).
Aa
White text reads best on this color (8.19:1).
About this color
#573F97 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.138 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.028 away. White text reads best on it, at 8.19:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Blueberry (#464196) |
| Black text | 2.56:1 |
| White text | 8.19:1 |
Values
| HEX | #573F97 |
| RGB | rgb(87, 63, 151) |
| HSL | hsl(256, 41%, 42%) |
| OKLCH | oklch(44.1% 0.138 292.4) |
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 #573F97 | 8.19:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #573F97 | 2.56:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #573F97 text on white | 8.19:1 | AAA | Lc 88.0 | Fine for body text |
| #573F97 text on black | 2.56:1 | Fails | Lc -14.1 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#D9D4F5
oklch(88.4% 0.045 292.4)
-
Step 300
300
#C1B8F1
oklch(81% 0.08 291.7)
-
Step 400
400
#A390EA
oklch(70.6% 0.13 292.4)
-
Step 500
500
#8E72E3
oklch(63.1% 0.165 292.4)
-
Step 600
600
#7958D1
oklch(55.6% 0.179 292.2)
-
Step 700
700
#6647B5
oklch(49.1% 0.166 292.1)
-
Step 800
800 (this color)
#573F97
oklch(44.1% 0.138 292.4)
-
Step 900
900
#443475
oklch(37.8% 0.107 291.8)
-
Step 950
950
#281F44
oklch(27% 0.067 292.5)
#573F97 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) | #0B509A | 0.088 |
| Deuteranopia (no green cones) | #144D95 | 0.084 |
| Tritanopia (no blue cones) | #465265 | 0.111 |
| Achromatopsia (no color) | #4F4F4F | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573F97
#573F97
oklch(44.1% 0.138 292.4)
- #545800
#545800
oklch(44.2% 0.098 112.8)
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 #573F97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.028
- Dark Slate Blue #483D8B ΔE 0.033
- Rebecca Purple #663399 ΔE 0.036
- Twilight #4E518B ΔE 0.054
- Dusk #4E5481 ΔE 0.073
- Blue With A Hint Of Purple #533CC6 ΔE 0.076
- Bluey Purple #6241C7 ΔE 0.079
- Cobalt #1E488F ΔE 0.079
Use #573F97 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.