#558FEC#558FEC

#558FEC is a light, vivid blue. Relative luminance 0.276; OKLCH L 65.4% C 0.152 H 259.4°. Best body text is #000000 at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#558FEC
RGB	rgb(85, 143, 236)
HSL	hsl(217, 80%, 63%)
HSV	hsv(217, 64%, 93%)
CMYK	cmyk(64%, 39.4%, 0%, 7.5%)
CIE-LAB	lab(59.55, 9.80, -52.55)
CIE-LCH	lch(59.55, 53.46, 280.56°)
OKLab	oklab(65.42% -0.0279 -0.1496)
OKLCH	oklch(65.42% 0.152 259.4)
XYZ	xyz(28.7037, 27.6296, 83.1610)
Luminance	0.2763 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558FEC #ECB255

analogous

#55DAEC #558FEC #6755EC

triadic

#558FEC #EC558F #8FEC55

tetradic

#558FEC #EC55DA #ECB255 #55EC67

square

#558FEC #EC55DA #ECB255 #55EC67

split-complementary

#558FEC #EC6755 #DAEC55

monochromatic

#1451B3 #1E6BE6 #558FEC #8CB3F2 #C3D8F8

Accessibility & contrast

On white

3.22

#558FEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.53

#558FEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558FEC

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558FEC	#FFFFFF	#000000	##000000
##558FEC	1.00	3.22	6.53	6.53
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.53	21.00	1.00	1.00
##000000	6.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6597F0

Deuteranopia (green-blind)

#4F89EA

Tritanopia (blue-blind)

#00A4B2

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #558fec;
/* rgb */ color: rgb(85, 143, 236);
/* oklch */ color: oklch(65.4% 0.152 259.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#558fec",
  "rgb": {
    "r": 85,
    "g": 143,
    "b": 236
  },
  "hsl": {
    "h": 216.954,
    "s": 79.894,
    "l": 62.941
  },
  "oklch": {
    "l": 0.65418,
    "c": 0.15217,
    "h": 259.4
  },
  "luminance": 0.27632
}

Semantic roles & 50–950 ramp

primary

#558FEC

secondary

#EAD5B3

accent

#8B09DC

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #558FEC

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

Preview Lab → · Contrast checker → · Palette generator →