#557D99#557D99

#557D99 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.1% C 0.062 H 239.8°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#557D99
RGB	rgb(85, 125, 153)
HSL	hsl(205, 29%, 47%)
HSV	hsv(205, 44%, 60%)
CMYK	cmyk(44.4%, 18.3%, 0%, 40%)
CIE-LAB	lab(50.57, -6.17, -19.43)
CIE-LCH	lch(50.57, 20.38, 252.38°)
OKLab	oklab(57.12% -0.0314 -0.0538)
OKLCH	oklch(57.12% 0.062 239.8)
XYZ	xyz(16.8277, 18.8973, 32.8916)
Luminance	0.1890 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557D99 #997155

analogous

#559993 #557D99 #555B99

triadic

#557D99 #99557D #7D9955

tetradic

#557D99 #935599 #997155 #5B9955

square

#557D99 #935599 #997155 #5B9955

split-complementary

#557D99 #99555B #999355

monochromatic

#293D4A #3F5D72 #557D99 #779BB4 #9FB8CA

Accessibility & contrast

On white

4.39

#557D99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#557D99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557D99

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557D99	#FFFFFF	#000000	##000000
##557D99	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#717C9A

Deuteranopia (green-blind)

#687599

Tritanopia (blue-blind)

#398486

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #557d99;
/* rgb */ color: rgb(85, 125, 153);
/* oklch */ color: oklch(57.1% 0.062 239.8);

Tailwind

colors: {
  custom: {
    50: '#88a2b7',
    500: '#557d99',
    950: '#000000',
  },
}

SCSS

$custom: #557d99;
$custom-light: #88a2b7;
$custom-dark: #000000;

JSON

{
  "hex": "#557d99",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 153
  },
  "hsl": {
    "h": 204.706,
    "s": 28.571,
    "l": 46.667
  },
  "oklch": {
    "l": 0.57121,
    "c": 0.06227,
    "h": 239.8
  },
  "luminance": 0.18898
}

Semantic roles & 50–950 ramp

primary

#557D99

secondary

#B7A293

accent

#8B63C5

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0F11

muted

#7D7E80

Preview Lab

Preview with #557D99

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

Preview Lab → · Contrast checker → · Palette generator →