#558FE4#558FE4

#558FE4 is a light, vivid blue. Relative luminance 0.272; OKLCH L 65.0% C 0.142 H 257.9°. Best body text is #000000 at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#558FE4
RGB	rgb(85, 143, 228)
HSL	hsl(216, 73%, 61%)
HSV	hsv(216, 63%, 89%)
CMYK	cmyk(62.7%, 37.3%, 0%, 10.6%)
CIE-LAB	lab(59.14, 7.11, -48.78)
CIE-LCH	lch(59.14, 49.29, 278.29°)
OKLab	oklab(64.96% -0.0297 -0.1385)
OKLCH	oklch(64.96% 0.142 257.9)
XYZ	xyz(27.5674, 27.1751, 77.1763)
Luminance	0.2718 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558FE4 #E4AA55

analogous

#55D7E4 #558FE4 #6355E4

triadic

#558FE4 #E4558F #8FE455

tetradic

#558FE4 #E455D7 #E4AA55 #55E463

square

#558FE4 #E455D7 #E4AA55 #55E463

split-complementary

#558FE4 #E46355 #D7E455

monochromatic

#1A52A4 #236DD9 #558FE4 #8AB2EC #BFD5F5

Accessibility & contrast

On white

3.26

#558FE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.44

#558FE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558FE4

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558FE4	#FFFFFF	#000000	##000000
##558FE4	1.00	3.26	6.44	6.44
#FFFFFF	3.26	1.00	21.00	21.00
#000000	6.44	21.00	1.00	1.00
##000000	6.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A96E7

Deuteranopia (green-blind)

#5688E2

Tritanopia (blue-blind)

#00A2AF

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #558fe4;
/* rgb */ color: rgb(85, 143, 228);
/* oklch */ color: oklch(65.0% 0.142 257.9);

Tailwind

colors: {
  custom: {
    50: '#91afed',
    500: '#558fe4',
    950: '#000000',
  },
}

SCSS

$custom: #558fe4;
$custom-light: #91afed;
$custom-dark: #000000;

JSON

{
  "hex": "#558fe4",
  "rgb": {
    "r": 85,
    "g": 143,
    "b": 228
  },
  "hsl": {
    "h": 215.664,
    "s": 72.589,
    "l": 61.373
  },
  "oklch": {
    "l": 0.64959,
    "c": 0.14167,
    "h": 257.9
  },
  "luminance": 0.27178
}

Semantic roles & 50–950 ramp

primary

#558FE4

secondary

#E5CFB0

accent

#8511D5

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #558FE4

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

Preview Lab → · Contrast checker → · Palette generator →