#558FBB#558FBB

#558FBB is a light, moderate cyan. Relative luminance 0.252; OKLCH L 62.8% C 0.090 H 242.8°. Best body text is #000000 at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#558FBB
RGB	rgb(85, 143, 187)
HSL	hsl(206, 43%, 53%)
HSV	hsv(206, 55%, 73%)
CMYK	cmyk(54.5%, 23.5%, 0%, 26.7%)
CIE-LAB	lab(57.23, -6.20, -28.73)
CIE-LCH	lch(57.23, 29.39, 257.83°)
OKLab	oklab(62.84% -0.0413 -0.0803)
OKLCH	oklch(62.84% 0.09 242.8)
XYZ	xyz(22.5352, 25.1622, 50.6733)
Luminance	0.2516 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558FBB #BB8155

analogous

#55BBB4 #558FBB #555CBB

triadic

#558FBB #BB558F #8FBB55

tetradic

#558FBB #B455BB #BB8155 #5CBB55

square

#558FBB #B455BB #BB8155 #5CBB55

split-complementary

#558FBB #BB555C #BBB455

monochromatic

#2B4F6B #3C7097 #558FBB #81ACCC #ACC9DE

Accessibility & contrast

On white

3.48

#558FBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.03

#558FBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558FBB

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558FBB	#FFFFFF	#000000	##000000
##558FBB	1.00	3.48	6.03	6.03
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.03	21.00	1.00	1.00
##000000	6.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8FBD

Deuteranopia (green-blind)

#6E85BA

Tritanopia (blue-blind)

#0D9A9E

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #558fbb;
/* rgb */ color: rgb(85, 143, 187);
/* oklch */ color: oklch(62.8% 0.090 242.8);

Tailwind

colors: {
  custom: {
    50: '#8cafcf',
    500: '#558fbb',
    950: '#000000',
  },
}

SCSS

$custom: #558fbb;
$custom-light: #8cafcf;
$custom-dark: #000000;

JSON

{
  "hex": "#558fbb",
  "rgb": {
    "r": 85,
    "g": 143,
    "b": 187
  },
  "hsl": {
    "h": 205.882,
    "s": 42.857,
    "l": 53.333
  },
  "oklch": {
    "l": 0.62842,
    "c": 0.09033,
    "h": 242.8
  },
  "luminance": 0.25164
}

Semantic roles & 50–950 ramp

primary

#558FBB

secondary

#CCB3A0

accent

#8B55D3

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0D1014

muted

#7D7F82

Preview Lab

Preview with #558FBB

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

Preview Lab → · Contrast checker → · Palette generator →