#578FF4#578FF4

#578FF4 is a light, vivid blue. Relative luminance 0.282; OKLCH L 66.0% C 0.162 H 261.2°. Best body text is #000000 at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#578FF4
RGB	rgb(87, 143, 244)
HSL	hsl(219, 88%, 65%)
HSV	hsv(219, 64%, 96%)
CMYK	cmyk(64.3%, 41.4%, 0%, 4.3%)
CIE-LAB	lab(60.07, 12.84, -56.15)
CIE-LCH	lch(60.07, 57.59, 282.88°)
OKLab	oklab(65.98% -0.0247 -0.1601)
OKLCH	oklch(65.98% 0.162 261.2)
XYZ	xyz(30.0763, 28.1999, 89.4285)
Luminance	0.2820 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578FF4 #F4BC57

analogous

#57DDF4 #578FF4 #6E57F4

triadic

#578FF4 #F4578F #8FF457

tetradic

#578FF4 #F457DD #F4BC57 #57F46E

square

#578FF4 #F457DD #F4BC57 #57F46E

split-complementary

#578FF4 #F46E57 #DDF457

monochromatic

#0D4EC4 #1E69F0 #578FF4 #90B5F8 #CADCFC

Accessibility & contrast

On white

3.16

#578FF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.64

#578FF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578FF4

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578FF4	#FFFFFF	#000000	##000000
##578FF4	1.00	3.16	6.64	6.64
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.64	21.00	1.00	1.00
##000000	6.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6199F8

Deuteranopia (green-blind)

#488AF2

Tritanopia (blue-blind)

#00A6B6

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #578ff4;
/* rgb */ color: rgb(87, 143, 244);
/* oklch */ color: oklch(66.0% 0.162 261.2);

Tailwind

colors: {
  custom: {
    50: '#95aff8',
    500: '#578ff4',
    950: '#000000',
  },
}

SCSS

$custom: #578ff4;
$custom-light: #95aff8;
$custom-dark: #000000;

JSON

{
  "hex": "#578ff4",
  "rgb": {
    "r": 87,
    "g": 143,
    "b": 244
  },
  "hsl": {
    "h": 218.599,
    "s": 87.709,
    "l": 64.902
  },
  "oklch": {
    "l": 0.65981,
    "c": 0.16198,
    "h": 261.2
  },
  "luminance": 0.28203
}

Semantic roles & 50–950 ramp

primary

#578FF4

secondary

#EEDBB9

accent

#9301E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #578FF4

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

Preview Lab → · Contrast checker → · Palette generator →