#573FA5
Closest named color: Blueberry (#464196). oklch(45.1% 0.157 289.4), rgb(87, 63, 165).
Aa
White text reads best on this color (7.89:1).
About this color
#573FA5 is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.157 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.037 away. White text reads best on it, at 7.89:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.157) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.65:1 |
| White text | 7.89:1 |
Values
| HEX | #573FA5 |
| RGB | rgb(87, 63, 165) |
| HSL | hsl(254, 45%, 45%) |
| OKLCH | oklch(45.1% 0.157 289.4) |
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 #573FA5 | 7.89:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #573FA5 | 2.65:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #573FA5 text on white | 7.89:1 | AAA | Lc 87.0 | Fine for body text |
| #573FA5 text on black | 2.65:1 | Fails | Lc -15.1 | 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
#9F8FF5
oklch(70.7% 0.146 289.3)
-
Step 500
500
#8A6FF1
oklch(63.1% 0.187 289.5)
-
Step 600
600
#7653E0
oklch(55.7% 0.204 289.5)
-
Step 700
700
#6342C2
oklch(49% 0.189 289.4)
-
Step 800
800 (this color)
#573FA5
oklch(45.1% 0.157 289.4)
-
Step 900
900
#42327D
oklch(37.8% 0.122 289)
-
Step 950
950
#261E49
oklch(27% 0.077 288.7)
#573FA5 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) | #0053A8 | 0.090 |
| Deuteranopia (no green cones) | #004FA3 | 0.089 |
| Tritanopia (no blue cones) | #3E576C | 0.129 |
| Achromatopsia (no color) | #515151 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573FA5
#573FA5
oklch(45.1% 0.157 289.4)
- #5A5A00
#5A5A00
oklch(45.3% 0.099 109.8)
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 #573FA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.037
- Rebecca Purple #663399 ΔE 0.040
- Dark Slate Blue #483D8B ΔE 0.050
- Blue With A Hint Of Purple #533CC6 ΔE 0.054
- Bluey Purple #6241C7 ΔE 0.057
- Blurple #5539CC ΔE 0.063
- Twilight #4E518B ΔE 0.067
- Majorelle Blue #3F37C9 ΔE 0.073
Use #573FA5 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.