#558BCB#558BCB

#558BCB is a light, moderate cyan. Relative luminance 0.247; OKLCH L 62.7% C 0.113 H 253.6°. Best body text is #000000 at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#558BCB
RGB	rgb(85, 139, 203)
HSL	hsl(213, 53%, 56%)
HSV	hsv(213, 58%, 80%)
CMYK	cmyk(58.1%, 31.5%, 0%, 20.4%)
CIE-LAB	lab(56.79, 1.21, -38.48)
CIE-LCH	lch(56.79, 38.50, 271.80°)
OKLab	oklab(62.72% -0.0319 -0.1085)
OKLCH	oklch(62.72% 0.113 253.6)
XYZ	xyz(23.7546, 24.7063, 60.0053)
Luminance	0.2471 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558BCB #CB9555

analogous

#55C6CB #558BCB #5A55CB

triadic

#558BCB #CB558B #8BCB55

tetradic

#558BCB #CB55C6 #CB9555 #55CB5A

square

#558BCB #CB55C6 #CB9555 #55CB5A

split-complementary

#558BCB #CB5A55 #C6CB55

monochromatic

#274F7F #356CAE #558BCB #84ABD9 #B3CBE8

Accessibility & contrast

On white

3.53

#558BCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.94

#558BCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558BCB

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558BCB	#FFFFFF	#000000	##000000
##558BCB	1.00	3.53	5.94	5.94
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.94	21.00	1.00	1.00
##000000	5.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#708FCE

Deuteranopia (green-blind)

#6183CA

Tritanopia (blue-blind)

#009AA2

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #558bcb;
/* rgb */ color: rgb(85, 139, 203);
/* oklch */ color: oklch(62.7% 0.113 253.6);

Tailwind

colors: {
  custom: {
    50: '#8eacdb',
    500: '#558bcb',
    950: '#000000',
  },
}

SCSS

$custom: #558bcb;
$custom-light: #8eacdb;
$custom-dark: #000000;

JSON

{
  "hex": "#558bcb",
  "rgb": {
    "r": 85,
    "g": 139,
    "b": 203
  },
  "hsl": {
    "h": 212.542,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.62725,
    "c": 0.1131,
    "h": 253.6
  },
  "luminance": 0.24708
}

Semantic roles & 50–950 ramp

primary

#558BCB

secondary

#D6C0A6

accent

#9A4BDD

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #558BCB

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

Preview Lab → · Contrast checker → · Palette generator →