#557B90#557B90

#557B90 is a mid, muted cyan. Relative luminance 0.181; OKLCH L 56.3% C 0.054 H 233.2°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#557B90
RGB	rgb(85, 123, 144)
HSL	hsl(201, 26%, 45%)
HSV	hsv(201, 41%, 56%)
CMYK	cmyk(41%, 14.6%, 0%, 43.5%)
CIE-LAB	lab(49.63, -7.60, -15.59)
CIE-LCH	lch(49.63, 17.34, 243.99°)
OKLab	oklab(56.27% -0.0322 -0.043)
OKLCH	oklch(56.27% 0.054 233.2)
XYZ	xyz(15.8616, 18.1098, 29.0399)
Luminance	0.1811 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557B90 #906A55

analogous

#559088 #557B90 #555E90

triadic

#557B90 #90557B #7B9055

tetradic

#557B90 #885590 #906A55 #5E9055

square

#557B90 #885590 #906A55 #5E9055

split-complementary

#557B90 #90555E #908855

monochromatic

#283943 #3E5A6A #557B90 #7599AD #9BB6C4

Accessibility & contrast

On white

4.54

#557B90 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#557B90 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557B90

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557B90	#FFFFFF	#000000	##000000
##557B90	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#717A91

Deuteranopia (green-blind)

#697390

Tritanopia (blue-blind)

#3F8182

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #557b90;
/* rgb */ color: rgb(85, 123, 144);
/* oklch */ color: oklch(56.3% 0.054 233.2);

Tailwind

colors: {
  custom: {
    50: '#87a1b0',
    500: '#557b90',
    950: '#000000',
  },
}

SCSS

$custom: #557b90;
$custom-light: #87a1b0;
$custom-dark: #000000;

JSON

{
  "hex": "#557b90",
  "rgb": {
    "r": 85,
    "g": 123,
    "b": 144
  },
  "hsl": {
    "h": 201.356,
    "s": 25.764,
    "l": 44.902
  },
  "oklch": {
    "l": 0.56266,
    "c": 0.05368,
    "h": 233.2
  },
  "luminance": 0.18111
}

Semantic roles & 50–950 ramp

primary

#557B90

secondary

#B19B8F

accent

#8766C2

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0B0E10

muted

#7C7E7F

Preview Lab

Preview with #557B90

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

Preview Lab → · Contrast checker → · Palette generator →