#558FCB#558FCB

#558FCB is a light, moderate cyan. Relative luminance 0.259; OKLCH L 63.6% C 0.109 H 250.7°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#558FCB
RGB	rgb(85, 143, 203)
HSL	hsl(211, 53%, 56%)
HSV	hsv(211, 58%, 80%)
CMYK	cmyk(58.1%, 29.6%, 0%, 20.4%)
CIE-LAB	lab(57.93, -1.12, -36.69)
CIE-LCH	lch(57.93, 36.71, 268.25°)
OKLab	oklab(63.62% -0.0363 -0.1033)
OKLCH	oklch(63.62% 0.109 250.7)
XYZ	xyz(24.3444, 25.8859, 60.2019)
Luminance	0.2589 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558FCB #CB9155

analogous

#55CACB #558FCB #5655CB

triadic

#558FCB #CB558F #8FCB55

tetradic

#558FCB #CB55CA #CB9155 #55CB56

square

#558FCB #CB55CA #CB9155 #55CB56

split-complementary

#558FCB #CB5655 #CACB55

monochromatic

#27527F #3570AE #558FCB #84AED9 #B3CDE8

Accessibility & contrast

On white

3.40

#558FCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#558FCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558FCB

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558FCB	#FFFFFF	#000000	##000000
##558FCB	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7692CE

Deuteranopia (green-blind)

#6686CA

Tritanopia (blue-blind)

#009DA4

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #558fcb;
/* rgb */ color: rgb(85, 143, 203);
/* oklch */ color: oklch(63.6% 0.109 250.7);

Tailwind

colors: {
  custom: {
    50: '#8eafdb',
    500: '#558fcb',
    950: '#000000',
  },
}

SCSS

$custom: #558fcb;
$custom-light: #8eafdb;
$custom-dark: #000000;

JSON

{
  "hex": "#558fcb",
  "rgb": {
    "r": 85,
    "g": 143,
    "b": 203
  },
  "hsl": {
    "h": 210.508,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.63619,
    "c": 0.10948,
    "h": 250.7
  },
  "luminance": 0.25888
}

Semantic roles & 50–950 ramp

primary

#558FCB

secondary

#D6BEA6

accent

#954BDD

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #558FCB

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

Preview Lab → · Contrast checker → · Palette generator →