#558ECB#558ECB

#558ECB is a light, moderate cyan. Relative luminance 0.256; OKLCH L 63.4% C 0.110 H 251.4°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#558ECB
RGB	rgb(85, 142, 203)
HSL	hsl(211, 53%, 56%)
HSV	hsv(211, 58%, 80%)
CMYK	cmyk(58.1%, 30%, 0%, 20.4%)
CIE-LAB	lab(57.64, -0.54, -37.14)
CIE-LCH	lch(57.64, 37.14, 269.16°)
OKLab	oklab(63.4% -0.0352 -0.1046)
OKLCH	oklch(63.4% 0.11 251.4)
XYZ	xyz(24.1949, 25.5870, 60.1521)
Luminance	0.2559 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558ECB #CB9255

analogous

#55C9CB #558ECB #5755CB

triadic

#558ECB #CB558E #8ECB55

tetradic

#558ECB #CB55C9 #CB9255 #55CB57

square

#558ECB #CB55C9 #CB9255 #55CB57

split-complementary

#558ECB #CB5755 #C9CB55

monochromatic

#27517F #356FAE #558ECB #84ADD9 #B3CCE8

Accessibility & contrast

On white

3.43

#558ECB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.12

#558ECB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558ECB

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558ECB	#FFFFFF	#000000	##000000
##558ECB	1.00	3.43	6.12	6.12
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.12	21.00	1.00	1.00
##000000	6.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7491CE

Deuteranopia (green-blind)

#6585CA

Tritanopia (blue-blind)

#009CA4

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #558ecb;
/* rgb */ color: rgb(85, 142, 203);
/* oklch */ color: oklch(63.4% 0.110 251.4);

Tailwind

colors: {
  custom: {
    50: '#8eaedb',
    500: '#558ecb',
    950: '#000000',
  },
}

SCSS

$custom: #558ecb;
$custom-light: #8eaedb;
$custom-dark: #000000;

JSON

{
  "hex": "#558ecb",
  "rgb": {
    "r": 85,
    "g": 142,
    "b": 203
  },
  "hsl": {
    "h": 211.017,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.63395,
    "c": 0.11036,
    "h": 251.4
  },
  "luminance": 0.25589
}

Semantic roles & 50–950 ramp

primary

#558ECB

secondary

#D6BFA6

accent

#964BDD

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #558ECB

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

Preview Lab → · Contrast checker → · Palette generator →