#573EAF
Closest named color: Blue With A Hint Of Purple (#533CC6). oklch(45.8% 0.171 287.8), rgb(87, 62, 175).
Aa
White text reads best on this color (7.73:1).
About this color
#573EAF is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.171 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 0.038 away. White text reads best on it, at 7.73:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.171) |
| Temperature | cool |
| Nearest name | Blue With A Hint Of Purple (#533CC6) |
| Black text | 2.71:1 |
| White text | 7.73:1 |
Values
| HEX | #573EAF |
| RGB | rgb(87, 62, 175) |
| HSL | hsl(253, 48%, 46%) |
| OKLCH | oklch(45.8% 0.171 287.8) |
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 #573EAF | 7.73:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #573EAF | 2.71:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #573EAF text on white | 7.73:1 | AAA | Lc 86.4 | Fine for body text |
| #573EAF text on black | 2.71:1 | Fails | Lc -15.7 | 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
#E8E7FD
oklch(93.5% 0.03 287.9)
-
Step 200
200
#D6D4FD
oklch(88.5% 0.056 287.4)
-
Step 300
300
#BDB7FE
oklch(81% 0.099 287.8)
-
Step 400
400
#9D8EFE
oklch(70.8% 0.16 287.7)
-
Step 500
500
#886CFB
oklch(63.1% 0.204 288.1)
-
Step 600
600
#744EEA
oklch(55.6% 0.222 288.1)
-
Step 700
700
#613DCC
oklch(49% 0.207 287.7)
-
Step 800
800 (this color)
#573EAF
oklch(45.8% 0.171 287.8)
-
Step 900
900
#413083
oklch(37.8% 0.133 287.7)
-
Step 950
950
#261D4D
oklch(27.1% 0.085 288)
#573EAF 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) | #0055B3 | 0.090 |
| Deuteranopia (no green cones) | #0050AD | 0.088 |
| Tritanopia (no blue cones) | #385971 | 0.139 |
| Achromatopsia (no color) | #535353 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573EAF
#573EAF
oklch(45.8% 0.171 287.8)
- #5D5B00
#5D5B00
oklch(45.8% 0.099 108.3)
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 #573EAF, 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 0.038
- Bluey Purple #6241C7 ΔE 0.043
- Blurple #5539CC ΔE 0.047
- Rebecca Purple #663399 ΔE 0.049
- Blueberry #464196 ΔE 0.049
- Majorelle Blue #3F37C9 ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.064
- Purple Blue #5D21D0 ΔE 0.066
Use #573EAF 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.