#573FAE
Closest named color: Blue With A Hint Of Purple (#533CC6). oklch(45.9% 0.169 287.8), rgb(87, 63, 174).
Aa
White text reads best on this color (7.69:1).
About this color
#573FAE is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.169 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Blue With A Hint Of Purple (#533CC6), ΔE 0.039 away. White text reads best on it, at 7.69:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Blue With A Hint Of Purple (#533CC6) |
| Black text | 2.72:1 |
| White text | 7.69:1 |
Values
| HEX | #573FAE |
| RGB | rgb(87, 63, 174) |
| HSL | hsl(253, 47%, 46%) |
| OKLCH | oklch(45.9% 0.169 287.8) |
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 #573FAE | 7.69:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #573FAE | 2.72:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #573FAE text on white | 7.69:1 | AAA | Lc 86.3 | Fine for body text |
| #573FAE text on black | 2.72:1 | Fails | Lc -15.8 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E8E7FC
oklch(93.5% 0.028 288)
-
Step 200
200
#D6D4FC
oklch(88.4% 0.055 287.5)
-
Step 300
300
#BDB7FD
oklch(80.9% 0.098 287.9)
-
Step 400
400
#9D8EFC
oklch(70.7% 0.157 287.9)
-
Step 500
500
#876DFA
oklch(63.1% 0.202 287.7)
-
Step 600
600
#7350E9
oklch(55.7% 0.219 287.6)
-
Step 700
700
#613FCA
oklch(49.1% 0.203 287.7)
-
Step 800
800 (this color)
#573FAE
oklch(45.9% 0.169 287.8)
-
Step 900
900
#413082
oklch(37.7% 0.132 287.9)
-
Step 950
950
#261D4C
oklch(27% 0.083 288.3)
#573FAE 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) | #0056B2 | 0.090 |
| Deuteranopia (no green cones) | #0050AC | 0.087 |
| Tritanopia (no blue cones) | #385A70 | 0.140 |
| Achromatopsia (no color) | #535353 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573FAE
#573FAE
oklch(45.9% 0.169 287.8)
- #5E5B00
#5E5B00
oklch(45.9% 0.099 107.5)
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 #573FAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue With A Hint Of Purple #533CC6 ΔE 0.039
- Bluey Purple #6241C7 ΔE 0.044
- Blueberry #464196 ΔE 0.048
- Rebecca Purple #663399 ΔE 0.049
- Blurple #5539CC ΔE 0.049
- Majorelle Blue #3F37C9 ΔE 0.062
- Dark Slate Blue #483D8B ΔE 0.062
- Purple Blue #5D21D0 ΔE 0.069
Use #573FAE 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.