#558FEB#558FEB

#558FEB is a light, vivid blue. Relative luminance 0.276; OKLCH L 65.4% C 0.151 H 259.3°. Best body text is #000000 at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#558FEB
RGB	rgb(85, 143, 235)
HSL	hsl(217, 79%, 63%)
HSV	hsv(217, 64%, 92%)
CMYK	cmyk(63.8%, 39.1%, 0%, 7.8%)
CIE-LAB	lab(59.50, 9.46, -52.08)
CIE-LCH	lch(59.50, 52.94, 280.30°)
OKLab	oklab(65.36% -0.0281 -0.1482)
OKLCH	oklch(65.36% 0.151 259.3)
XYZ	xyz(28.5588, 27.5716, 82.3980)
Luminance	0.2757 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558FEB #EBB155

analogous

#55DAEB #558FEB #6655EB

triadic

#558FEB #EB558F #8FEB55

tetradic

#558FEB #EB55DA #EBB155 #55EB66

square

#558FEB #EB55DA #EBB155 #55EB66

split-complementary

#558FEB #EB6655 #DAEB55

monochromatic

#1551B1 #1E6BE5 #558FEB #8CB3F1 #C3D7F8

Accessibility & contrast

On white

3.22

#558FEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.51

#558FEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558FEB

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558FEB	#FFFFFF	#000000	##000000
##558FEB	1.00	3.22	6.51	6.51
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.51	21.00	1.00	1.00
##000000	6.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6697EF

Deuteranopia (green-blind)

#5089E9

Tritanopia (blue-blind)

#00A4B2

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #558feb;
/* rgb */ color: rgb(85, 143, 235);
/* oklch */ color: oklch(65.4% 0.151 259.3);

Tailwind

colors: {
  custom: {
    50: '#92aff2',
    500: '#558feb',
    950: '#000000',
  },
}

SCSS

$custom: #558feb;
$custom-light: #92aff2;
$custom-dark: #000000;

JSON

{
  "hex": "#558feb",
  "rgb": {
    "r": 85,
    "g": 143,
    "b": 235
  },
  "hsl": {
    "h": 216.8,
    "s": 78.947,
    "l": 62.745
  },
  "oklch": {
    "l": 0.6536,
    "c": 0.15085,
    "h": 259.3
  },
  "luminance": 0.27574
}

Semantic roles & 50–950 ramp

primary

#558FEB

secondary

#E9D4B3

accent

#8A0ADB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #558FEB

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

Preview Lab → · Contrast checker → · Palette generator →