#578EEB#578EEB

#578EEB is a light, vivid blue. Relative luminance 0.274; OKLCH L 65.2% C 0.151 H 260.3°. Best body text is #000000 at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#578EEB
RGB	rgb(87, 142, 235)
HSL	hsl(218, 79%, 63%)
HSV	hsv(218, 63%, 92%)
CMYK	cmyk(63%, 39.6%, 0%, 7.8%)
CIE-LAB	lab(59.31, 10.40, -52.38)
CIE-LCH	lch(59.31, 53.40, 281.23°)
OKLab	oklab(65.24% -0.0255 -0.149)
OKLCH	oklch(65.24% 0.151 260.3)
XYZ	xyz(28.5936, 27.3677, 82.3568)
Luminance	0.2737 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578EEB #EBB457

analogous

#57D8EB #578EEB #6A57EB

triadic

#578EEB #EB578E #8EEB57

tetradic

#578EEB #EB57D8 #EBB457 #57EB6A

square

#578EEB #EB57D8 #EBB457 #57EB6A

split-complementary

#578EEB #EB6A57 #D8EB57

monochromatic

#1550B2 #2069E4 #578EEB #8EB3F2 #C4D8F8

Accessibility & contrast

On white

3.24

#578EEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.47

#578EEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578EEB

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578EEB	#FFFFFF	#000000	##000000
##578EEB	1.00	3.24	6.47	6.47
#FFFFFF	3.24	1.00	21.00	21.00
#000000	6.47	21.00	1.00	1.00
##000000	6.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6596EF

Deuteranopia (green-blind)

#4F88E9

Tritanopia (blue-blind)

#00A3B1

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #578eeb;
/* rgb */ color: rgb(87, 142, 235);
/* oklch */ color: oklch(65.2% 0.151 260.3);

Tailwind

colors: {
  custom: {
    50: '#93aef2',
    500: '#578eeb',
    950: '#000000',
  },
}

SCSS

$custom: #578eeb;
$custom-light: #93aef2;
$custom-dark: #000000;

JSON

{
  "hex": "#578eeb",
  "rgb": {
    "r": 87,
    "g": 142,
    "b": 235
  },
  "hsl": {
    "h": 217.703,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.65239,
    "c": 0.15121,
    "h": 260.3
  },
  "luminance": 0.2737
}

Semantic roles & 50–950 ramp

primary

#578EEB

secondary

#E9D6B4

accent

#8E0ADB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #578EEB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →