#558FF3#558FF3

#558FF3 is a light, vivid blue. Relative luminance 0.280; OKLCH L 65.8% C 0.161 H 260.6°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#558FF3
RGB	rgb(85, 143, 243)
HSL	hsl(218, 87%, 64%)
HSV	hsv(218, 65%, 95%)
CMYK	cmyk(65%, 41.2%, 0%, 4.7%)
CIE-LAB	lab(59.93, 12.17, -55.82)
CIE-LCH	lch(59.93, 57.13, 282.30°)
OKLab	oklab(65.83% -0.0265 -0.1592)
OKLCH	oklch(65.83% 0.161 260.6)
XYZ	xyz(29.7407, 28.0444, 88.6224)
Luminance	0.2805 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558FF3 #F3B955

analogous

#55DEF3 #558FF3 #6A55F3

triadic

#558FF3 #F3558F #8FF355

tetradic

#558FF3 #F355DE #F3B955 #55F36A

square

#558FF3 #F355DE #F3B955 #55F36A

split-complementary

#558FF3 #F36A55 #DEF355

monochromatic

#0E4FC0 #1C69EF #558FF3 #8EB5F7 #C7DAFB

Accessibility & contrast

On white

3.18

#558FF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#558FF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558FF3

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558FF3	#FFFFFF	#000000	##000000
##558FF3	1.00	3.18	6.61	6.61
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6198F7

Deuteranopia (green-blind)

#488AF1

Tritanopia (blue-blind)

#00A6B5

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #558ff3;
/* rgb */ color: rgb(85, 143, 243);
/* oklch */ color: oklch(65.8% 0.161 260.6);

Tailwind

colors: {
  custom: {
    50: '#94aff7',
    500: '#558ff3',
    950: '#000000',
  },
}

SCSS

$custom: #558ff3;
$custom-light: #94aff7;
$custom-dark: #000000;

JSON

{
  "hex": "#558ff3",
  "rgb": {
    "r": 85,
    "g": 143,
    "b": 243
  },
  "hsl": {
    "h": 217.975,
    "s": 86.813,
    "l": 64.314
  },
  "oklch": {
    "l": 0.65831,
    "c": 0.16136,
    "h": 260.6
  },
  "luminance": 0.28047
}

Semantic roles & 50–950 ramp

primary

#558FF3

secondary

#EDD9B6

accent

#9102E3

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #558FF3

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

Preview Lab → · Contrast checker → · Palette generator →