#557D8A#557D8A

#557D8A is a mid, muted cyan. Relative luminance 0.184; OKLCH L 56.5% C 0.049 H 220.2°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#557D8A
RGB	rgb(85, 125, 138)
HSL	hsl(195, 24%, 44%)
HSV	hsv(195, 38%, 54%)
CMYK	cmyk(38.4%, 9.4%, 0%, 45.9%)
CIE-LAB	lab(50.02, -10.41, -11.47)
CIE-LCH	lch(50.02, 15.49, 227.78°)
OKLab	oklab(56.5% -0.0373 -0.0315)
OKLCH	oklch(56.5% 0.049 220.2)
XYZ	xyz(15.6658, 18.4326, 26.7722)
Luminance	0.1843 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557D8A #8A6255

analogous

#558A7C #557D8A #55628A

triadic

#557D8A #8A557D #7D8A55

tetradic

#557D8A #7C558A #8A6255 #628A55

square

#557D8A #7C558A #8A6255 #628A55

split-complementary

#557D8A #8A5562 #8A7C55

monochromatic

#26383E #3E5B64 #557D8A #739CA9 #99B7C0

Accessibility & contrast

On white

4.48

#557D8A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#557D8A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557D8A

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557D8A	#FFFFFF	#000000	##000000
##557D8A	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#757B8B

Deuteranopia (green-blind)

#6D748A

Tritanopia (blue-blind)

#418181

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #557d8a;
/* rgb */ color: rgb(85, 125, 138);
/* oklch */ color: oklch(56.5% 0.049 220.2);

Tailwind

colors: {
  custom: {
    50: '#87a2ac',
    500: '#557d8a',
    950: '#000000',
  },
}

SCSS

$custom: #557d8a;
$custom-light: #87a2ac;
$custom-dark: #000000;

JSON

{
  "hex": "#557d8a",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 138
  },
  "hsl": {
    "h": 194.717,
    "s": 23.767,
    "l": 43.725
  },
  "oklch": {
    "l": 0.56503,
    "c": 0.04878,
    "h": 220.2
  },
  "luminance": 0.18434
}

Semantic roles & 50–950 ramp

primary

#557D8A

secondary

#AE958D

accent

#7D68C0

background

#F8FAFA

surface

#F0F3F4

border

#CBCDCE

text

#0B0F10

muted

#7C7F7F

Preview Lab

Preview with #557D8A

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

Preview Lab → · Contrast checker → · Palette generator →