#557B8A#557B8A

#557B8A is a mid, muted cyan. Relative luminance 0.179; OKLCH L 56.0% C 0.049 H 224.5°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#557B8A
RGB	rgb(85, 123, 138)
HSL	hsl(197, 24%, 44%)
HSV	hsv(197, 38%, 54%)
CMYK	cmyk(38.4%, 10.9%, 0%, 45.9%)
CIE-LAB	lab(49.41, -9.28, -12.39)
CIE-LCH	lch(49.41, 15.48, 233.16°)
OKLab	oklab(56.02% -0.0346 -0.034)
OKLCH	oklch(56.02% 0.049 224.5)
XYZ	xyz(15.4152, 17.9313, 26.6886)
Luminance	0.1793 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557B8A #8A6455

analogous

#558A7E #557B8A #55608A

triadic

#557B8A #8A557B #7B8A55

tetradic

#557B8A #7E558A #8A6455 #608A55

square

#557B8A #7E558A #8A6455 #608A55

split-complementary

#557B8A #8A5560 #8A7E55

monochromatic

#26373E #3E5964 #557B8A #739AA9 #99B5C0

Accessibility & contrast

On white

4.58

#557B8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#557B8A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557B8A

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557B8A	#FFFFFF	#000000	##000000
##557B8A	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#73798B

Deuteranopia (green-blind)

#6B738A

Tritanopia (blue-blind)

#418080

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #557b8a;
/* rgb */ color: rgb(85, 123, 138);
/* oklch */ color: oklch(56.0% 0.049 224.5);

Tailwind

colors: {
  custom: {
    50: '#87a1ac',
    500: '#557b8a',
    950: '#000000',
  },
}

SCSS

$custom: #557b8a;
$custom-light: #87a1ac;
$custom-dark: #000000;

JSON

{
  "hex": "#557b8a",
  "rgb": {
    "r": 85,
    "g": 123,
    "b": 138
  },
  "hsl": {
    "h": 196.981,
    "s": 23.767,
    "l": 43.725
  },
  "oklch": {
    "l": 0.56023,
    "c": 0.0485,
    "h": 224.5
  },
  "luminance": 0.17932
}

Semantic roles & 50–950 ramp

primary

#557B8A

secondary

#AE968D

accent

#8168C0

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0B0E10

muted

#7C7E7F

Preview Lab

Preview with #557B8A

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

Preview Lab → · Contrast checker → · Palette generator →