#558EBB#558EBB

#558EBB is a light, moderate cyan. Relative luminance 0.249; OKLCH L 62.6% C 0.091 H 243.8°. Best body text is #000000 at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#558EBB
RGB	rgb(85, 142, 187)
HSL	hsl(206, 43%, 53%)
HSV	hsv(206, 55%, 73%)
CMYK	cmyk(54.5%, 24.1%, 0%, 26.7%)
CIE-LAB	lab(56.94, -5.63, -29.18)
CIE-LCH	lch(56.94, 29.71, 259.09°)
OKLab	oklab(62.61% -0.0402 -0.0816)
OKLCH	oklch(62.61% 0.091 243.8)
XYZ	xyz(22.3857, 24.8633, 50.6235)
Luminance	0.2487 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558EBB #BB8255

analogous

#55BBB5 #558EBB #555BBB

triadic

#558EBB #BB558E #8EBB55

tetradic

#558EBB #B555BB #BB8255 #5BBB55

square

#558EBB #B555BB #BB8255 #5BBB55

split-complementary

#558EBB #BB555B #BBB555

monochromatic

#2B4F6B #3C6F97 #558EBB #81ABCC #ACC8DE

Accessibility & contrast

On white

3.52

#558EBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.97

#558EBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558EBB

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558EBB	#FFFFFF	#000000	##000000
##558EBB	1.00	3.52	5.97	5.97
#FFFFFF	3.52	1.00	21.00	21.00
#000000	5.97	21.00	1.00	1.00
##000000	5.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8EBD

Deuteranopia (green-blind)

#6D84BA

Tritanopia (blue-blind)

#0E999D

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #558ebb;
/* rgb */ color: rgb(85, 142, 187);
/* oklch */ color: oklch(62.6% 0.091 243.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#558ebb",
  "rgb": {
    "r": 85,
    "g": 142,
    "b": 187
  },
  "hsl": {
    "h": 206.471,
    "s": 42.857,
    "l": 53.333
  },
  "oklch": {
    "l": 0.62612,
    "c": 0.09097,
    "h": 243.8
  },
  "luminance": 0.24865
}

Semantic roles & 50–950 ramp

primary

#558EBB

secondary

#CCB3A0

accent

#8D55D3

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0D1014

muted

#7D7F82

Preview Lab

Preview with #558EBB

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

Preview Lab → · Contrast checker → · Palette generator →