#558EF4#558EF4

#558EF4 is a light, vivid blue. Relative luminance 0.278; OKLCH L 65.7% C 0.164 H 261.1°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#558EF4
RGB	rgb(85, 142, 244)
HSL	hsl(218, 88%, 65%)
HSV	hsv(218, 65%, 96%)
CMYK	cmyk(65.2%, 41.8%, 0%, 4.3%)
CIE-LAB	lab(59.71, 13.11, -56.72)
CIE-LCH	lch(59.71, 58.21, 283.01°)
OKLab	oklab(65.68% -0.0253 -0.1618)
OKLCH	oklch(65.68% 0.164 261.1)
XYZ	xyz(29.7427, 27.8061, 89.3701)
Luminance	0.2781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558EF4 #F4BB55

analogous

#55DDF4 #558EF4 #6C55F4

triadic

#558EF4 #F4558E #8EF455

tetradic

#558EF4 #F455DD #F4BB55 #55F46C

square

#558EF4 #F455DD #F4BB55 #55F46C

split-complementary

#558EF4 #F46C55 #DDF455

monochromatic

#0D4EC2 #1C68F0 #558EF4 #8EB4F8 #C8DAFB

Accessibility & contrast

On white

3.20

#558EF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#558EF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558EF4

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558EF4	#FFFFFF	#000000	##000000
##558EF4	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F98F8

Deuteranopia (green-blind)

#4589F2

Tritanopia (blue-blind)

#00A5B5

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #558ef4;
/* rgb */ color: rgb(85, 142, 244);
/* oklch */ color: oklch(65.7% 0.164 261.1);

Tailwind

colors: {
  custom: {
    50: '#94aef8',
    500: '#558ef4',
    950: '#000000',
  },
}

SCSS

$custom: #558ef4;
$custom-light: #94aef8;
$custom-dark: #000000;

JSON

{
  "hex": "#558ef4",
  "rgb": {
    "r": 85,
    "g": 142,
    "b": 244
  },
  "hsl": {
    "h": 218.491,
    "s": 87.845,
    "l": 64.51
  },
  "oklch": {
    "l": 0.65682,
    "c": 0.16379,
    "h": 261.1
  },
  "luminance": 0.27809
}

Semantic roles & 50–950 ramp

primary

#558EF4

secondary

#EEDAB7

accent

#9301E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #558EF4

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

Preview Lab → · Contrast checker → · Palette generator →