#578EF4#578EF4

#578EF4 is a light, vivid blue. Relative luminance 0.279; OKLCH L 65.8% C 0.163 H 261.6°. Best body text is #000000 at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#578EF4
RGB	rgb(87, 142, 244)
HSL	hsl(219, 88%, 65%)
HSV	hsv(219, 64%, 96%)
CMYK	cmyk(64.3%, 41.8%, 0%, 4.3%)
CIE-LAB	lab(59.80, 13.44, -56.58)
CIE-LCH	lch(59.80, 58.15, 283.36°)
OKLab	oklab(65.77% -0.0237 -0.1614)
OKLCH	oklch(65.77% 0.163 261.6)
XYZ	xyz(29.9269, 27.9010, 89.3787)
Luminance	0.2790 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578EF4 #F4BD57

analogous

#57DCF4 #578EF4 #6F57F4

triadic

#578EF4 #F4578E #8EF457

tetradic

#578EF4 #F457DC #F4BD57 #57F46F

square

#578EF4 #F457DC #F4BD57 #57F46F

split-complementary

#578EF4 #F46F57 #DCF457

monochromatic

#0D4DC4 #1E67F0 #578EF4 #90B5F8 #CADBFC

Accessibility & contrast

On white

3.19

#578EF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.58

#578EF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578EF4

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578EF4	#FFFFFF	#000000	##000000
##578EF4	1.00	3.19	6.58	6.58
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.58	21.00	1.00	1.00
##000000	6.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F98F8

Deuteranopia (green-blind)

#4689F2

Tritanopia (blue-blind)

#00A5B5

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #578ef4;
/* rgb */ color: rgb(87, 142, 244);
/* oklch */ color: oklch(65.8% 0.163 261.6);

Tailwind

colors: {
  custom: {
    50: '#95aef8',
    500: '#578ef4',
    950: '#000000',
  },
}

SCSS

$custom: #578ef4;
$custom-light: #95aef8;
$custom-dark: #000000;

JSON

{
  "hex": "#578ef4",
  "rgb": {
    "r": 87,
    "g": 142,
    "b": 244
  },
  "hsl": {
    "h": 218.981,
    "s": 87.709,
    "l": 64.902
  },
  "oklch": {
    "l": 0.65772,
    "c": 0.16311,
    "h": 261.6
  },
  "luminance": 0.27904
}

Semantic roles & 50–950 ramp

primary

#578EF4

secondary

#EEDBB9

accent

#9501E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #578EF4

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

Preview Lab → · Contrast checker → · Palette generator →