#578BF4#578BF4

#578BF4 is a light, vivid blue. Relative luminance 0.270; OKLCH L 65.2% C 0.167 H 262.8°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#578BF4
RGB	rgb(87, 139, 244)
HSL	hsl(220, 88%, 65%)
HSV	hsv(220, 64%, 96%)
CMYK	cmyk(64.3%, 43%, 0%, 4.3%)
CIE-LAB	lab(58.99, 15.23, -57.86)
CIE-LCH	lch(58.99, 59.83, 284.75°)
OKLab	oklab(65.15% -0.0209 -0.1652)
OKLCH	oklch(65.15% 0.167 262.8)
XYZ	xyz(29.4865, 27.0203, 89.2319)
Luminance	0.2702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578BF4 #F4C057

analogous

#57DAF4 #578BF4 #7157F4

triadic

#578BF4 #F4578B #8BF457

tetradic

#578BF4 #F457DA #F4C057 #57F471

square

#578BF4 #F457DA #F4C057 #57F471

split-complementary

#578BF4 #F47157 #DAF457

monochromatic

#0D49C4 #1E63F0 #578BF4 #90B3F8 #CADAFC

Accessibility & contrast

On white

3.28

#578BF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#578BF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578BF4

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578BF4	#FFFFFF	#000000	##000000
##578BF4	1.00	3.28	6.40	6.40
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.40	21.00	1.00	1.00
##000000	6.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5996F8

Deuteranopia (green-blind)

#4087F2

Tritanopia (blue-blind)

#00A3B4

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #578bf4;
/* rgb */ color: rgb(87, 139, 244);
/* oklch */ color: oklch(65.2% 0.167 262.8);

Tailwind

colors: {
  custom: {
    50: '#95acf8',
    500: '#578bf4',
    950: '#000000',
  },
}

SCSS

$custom: #578bf4;
$custom-light: #95acf8;
$custom-dark: #000000;

JSON

{
  "hex": "#578bf4",
  "rgb": {
    "r": 87,
    "g": 139,
    "b": 244
  },
  "hsl": {
    "h": 220.127,
    "s": 87.709,
    "l": 64.902
  },
  "oklch": {
    "l": 0.65151,
    "c": 0.1665,
    "h": 262.8
  },
  "luminance": 0.27023
}

Semantic roles & 50–950 ramp

primary

#578BF4

secondary

#EEDCB9

accent

#9901E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #578BF4

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

Preview Lab → · Contrast checker → · Palette generator →