#558CF3#558CF3

#558CF3 is a light, vivid blue. Relative luminance 0.272; OKLCH L 65.2% C 0.165 H 261.8°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#558CF3
RGB	rgb(85, 140, 243)
HSL	hsl(219, 87%, 64%)
HSV	hsv(219, 65%, 95%)
CMYK	cmyk(65%, 42.4%, 0%, 4.7%)
CIE-LAB	lab(59.12, 13.96, -57.12)
CIE-LCH	lch(59.12, 58.80, 283.74°)
OKLab	oklab(65.21% -0.0236 -0.163)
OKLCH	oklch(65.21% 0.165 261.8)
XYZ	xyz(29.2963, 27.1557, 88.4743)
Luminance	0.2716 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558CF3 #F3BC55

analogous

#55DBF3 #558CF3 #6D55F3

triadic

#558CF3 #F3558C #8CF355

tetradic

#558CF3 #F355DB #F3BC55 #55F36D

square

#558CF3 #F355DB #F3BC55 #55F36D

split-complementary

#558CF3 #F36D55 #DBF355

monochromatic

#0E4CC0 #1C65EF #558CF3 #8EB3F7 #C7D9FB

Accessibility & contrast

On white

3.27

#558CF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.43

#558CF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558CF3

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558CF3	#FFFFFF	#000000	##000000
##558CF3	1.00	3.27	6.43	6.43
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.43	21.00	1.00	1.00
##000000	6.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C96F7

Deuteranopia (green-blind)

#4288F1

Tritanopia (blue-blind)

#00A4B4

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #558cf3;
/* rgb */ color: rgb(85, 140, 243);
/* oklch */ color: oklch(65.2% 0.165 261.8);

Tailwind

colors: {
  custom: {
    50: '#94adf7',
    500: '#558cf3',
    950: '#000000',
  },
}

SCSS

$custom: #558cf3;
$custom-light: #94adf7;
$custom-dark: #000000;

JSON

{
  "hex": "#558cf3",
  "rgb": {
    "r": 85,
    "g": 140,
    "b": 243
  },
  "hsl": {
    "h": 219.114,
    "s": 86.813,
    "l": 64.314
  },
  "oklch": {
    "l": 0.65205,
    "c": 0.16471,
    "h": 261.8
  },
  "luminance": 0.27159
}

Semantic roles & 50–950 ramp

primary

#558CF3

secondary

#EDDAB6

accent

#9502E3

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #558CF3

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

Preview Lab → · Contrast checker → · Palette generator →