#558FFF#558FFF

#558FFF is a light, vivid blue. Relative luminance 0.288; OKLCH L 66.6% C 0.177 H 262.1°. Best body text is #000000 at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#558FFF
RGB	rgb(85, 143, 255)
HSL	hsl(220, 100%, 67%)
HSV	hsv(220, 67%, 100%)
CMYK	cmyk(66.7%, 43.9%, 0%, 0%)
CIE-LAB	lab(60.60, 16.26, -61.35)
CIE-LCH	lch(60.60, 63.47, 284.84°)
OKLab	oklab(66.57% -0.0243 -0.1754)
OKLCH	oklch(66.57% 0.177 262.1)
XYZ	xyz(31.6124, 28.7931, 98.4800)
Luminance	0.2880 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558FFF #FFC555

analogous

#55E4FF #558FFF #7055FF

triadic

#558FFF #FF558F #8FFF55

tetradic

#558FFF #FF55E4 #FFC555 #55FF70

square

#558FFF #FF55E4 #FFC555 #55FF70

split-complementary

#558FFF #FF7055 #E4FF55

monochromatic

#004ADA #1867FF #558FFF #92B7FF #CFE0FF

Accessibility & contrast

On white

3.11

#558FFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.76

#558FFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558FFF

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558FFF	#FFFFFF	#000000	##000000
##558FFF	1.00	3.11	6.76	6.76
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.76	21.00	1.00	1.00
##000000	6.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#589BFF

Deuteranopia (green-blind)

#3A8BFD

Tritanopia (blue-blind)

#00A9BB

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #558fff;
/* rgb */ color: rgb(85, 143, 255);
/* oklch */ color: oklch(66.6% 0.177 262.1);

Tailwind

colors: {
  custom: {
    50: '#96afff',
    500: '#558fff',
    950: '#000000',
  },
}

SCSS

$custom: #558fff;
$custom-light: #96afff;
$custom-dark: #000000;

JSON

{
  "hex": "#558fff",
  "rgb": {
    "r": 85,
    "g": 143,
    "b": 255
  },
  "hsl": {
    "h": 219.529,
    "s": 100,
    "l": 66.667
  },
  "oklch": {
    "l": 0.66565,
    "c": 0.17709,
    "h": 262.1
  },
  "luminance": 0.28796
}

Semantic roles & 50–950 ramp

primary

#558FFF

secondary

#F3E1BD

accent

#9700E6

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #558FFF

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

Preview Lab → · Contrast checker → · Palette generator →