#573FA4
Closest named color: Blueberry (#464196). oklch(45.1% 0.156 289.6), rgb(87, 63, 164).
Aa
White text reads best on this color (7.91:1).
About this color
#573FA4 is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.156 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.036 away. White text reads best on it, at 7.91:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.65:1 |
| White text | 7.91:1 |
Values
| HEX | #573FA4 |
| RGB | rgb(87, 63, 164) |
| HSL | hsl(254, 44%, 45%) |
| OKLCH | oklch(45.1% 0.156 289.6) |
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 #573FA4 | 7.91:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #573FA4 | 2.65:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #573FA4 text on white | 7.91:1 | AAA | Lc 87.1 | Fine for body text |
| #573FA4 text on black | 2.65:1 | Fails | Lc -15.0 | 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 800.
-
Step 50
50
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D8D4F9
oklch(88.5% 0.051 290.3)
-
Step 300
300
#BFB7F8
oklch(80.9% 0.091 289.8)
-
Step 400
400
#A08FF4
oklch(70.7% 0.145 289.9)
-
Step 500
500
#8A6FF0
oklch(63% 0.186 289.6)
-
Step 600
600
#7653DF
oklch(55.6% 0.203 289.7)
-
Step 700
700
#6342C1
oklch(49% 0.188 289.5)
-
Step 800
800 (this color)
#573FA4
oklch(45.1% 0.156 289.6)
-
Step 900
900
#42327C
oklch(37.7% 0.12 289.3)
-
Step 950
950
#271E49
oklch(27.1% 0.077 289.9)
#573FA4 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) | #0053A7 | 0.090 |
| Deuteranopia (no green cones) | #004FA2 | 0.089 |
| Tritanopia (no blue cones) | #3F566B | 0.127 |
| Achromatopsia (no color) | #515151 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573FA4
#573FA4
oklch(45.1% 0.156 289.6)
- #5A5900
#5A5900
oklch(45% 0.098 109)
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 #573FA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.036
- Rebecca Purple #663399 ΔE 0.040
- Dark Slate Blue #483D8B ΔE 0.048
- Blue With A Hint Of Purple #533CC6 ΔE 0.055
- Bluey Purple #6241C7 ΔE 0.059
- Blurple #5539CC ΔE 0.065
- Twilight #4E518B ΔE 0.066
- Majorelle Blue #3F37C9 ΔE 0.074
Use #573FA4 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.