#577D8A#577D8A

#577D8A is a mid, muted cyan. Relative luminance 0.185; OKLCH L 56.6% C 0.047 H 221.2°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#577D8A
RGB	rgb(87, 125, 138)
HSL	hsl(195, 23%, 44%)
HSV	hsv(195, 37%, 54%)
CMYK	cmyk(37%, 9.4%, 0%, 45.9%)
CIE-LAB	lab(50.13, -9.83, -11.29)
CIE-LCH	lch(50.13, 14.97, 228.96°)
OKLab	oklab(56.62% -0.0353 -0.031)
OKLCH	oklch(56.62% 0.047 221.2)
XYZ	xyz(15.8500, 18.5275, 26.7808)
Luminance	0.1853 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577D8A #8A6457

analogous

#578A7E #577D8A #57648A

triadic

#577D8A #8A577D #7D8A57

tetradic

#577D8A #7E578A #8A6457 #648A57

square

#577D8A #7E578A #8A6457 #648A57

split-complementary

#577D8A #8A5764 #8A7E57

monochromatic

#28393F #3F5B64 #577D8A #769CA8 #9BB7C0

Accessibility & contrast

On white

4.46

#577D8A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#577D8A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577D8A

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577D8A	#FFFFFF	#000000	##000000
##577D8A	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#757B8B

Deuteranopia (green-blind)

#6D758A

Tritanopia (blue-blind)

#448181

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #577d8a;
/* rgb */ color: rgb(87, 125, 138);
/* oklch */ color: oklch(56.6% 0.047 221.2);

Tailwind

colors: {
  custom: {
    50: '#88a2ac',
    500: '#577d8a',
    950: '#000000',
  },
}

SCSS

$custom: #577d8a;
$custom-light: #88a2ac;
$custom-dark: #000000;

JSON

{
  "hex": "#577d8a",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 138
  },
  "hsl": {
    "h": 195.294,
    "s": 22.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.56623,
    "c": 0.047,
    "h": 221.2
  },
  "luminance": 0.18528
}

Semantic roles & 50–950 ramp

primary

#577D8A

secondary

#AE978F

accent

#7F69BF

background

#F8FAFA

surface

#F0F3F4

border

#CBCDCE

text

#0B0F10

muted

#7C7F7F

Preview Lab

Preview with #577D8A

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

Preview Lab → · Contrast checker → · Palette generator →