#577F8B#577F8B

#577F8B is a mid, muted cyan. Relative luminance 0.191; OKLCH L 57.1% C 0.048 H 218.5°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#577F8B
RGB	rgb(87, 127, 139)
HSL	hsl(194, 23%, 44%)
HSV	hsv(194, 37%, 55%)
CMYK	cmyk(37.4%, 8.6%, 0%, 45.5%)
CIE-LAB	lab(50.77, -10.69, -10.92)
CIE-LCH	lch(50.77, 15.28, 225.62°)
OKLab	oklab(57.14% -0.0376 -0.0299)
OKLCH	oklch(57.14% 0.048 218.5)
XYZ	xyz(16.1785, 19.0681, 27.2491)
Luminance	0.1907 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577F8B #8B6357

analogous

#578B7D #577F8B #57658B

triadic

#577F8B #8B577F #7F8B57

tetradic

#577F8B #7D578B #8B6357 #658B57

square

#577F8B #7D578B #8B6357 #658B57

split-complementary

#577F8B #8B5765 #8B7D57

monochromatic

#283A40 #3F5D65 #577F8B #769DA9 #9CB8C1

Accessibility & contrast

On white

4.36

#577F8B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#577F8B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577F8B

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577F8B	#FFFFFF	#000000	##000000
##577F8B	1.00	4.36	4.81	4.81
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#777D8C

Deuteranopia (green-blind)

#6F768B

Tritanopia (blue-blind)

#448383

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #577f8b;
/* rgb */ color: rgb(87, 127, 139);
/* oklch */ color: oklch(57.1% 0.048 218.5);

Tailwind

colors: {
  custom: {
    50: '#88a4ac',
    500: '#577f8b',
    950: '#000000',
  },
}

SCSS

$custom: #577f8b;
$custom-light: #88a4ac;
$custom-dark: #000000;

JSON

{
  "hex": "#577f8b",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 139
  },
  "hsl": {
    "h": 193.846,
    "s": 23.009,
    "l": 44.314
  },
  "oklch": {
    "l": 0.5714,
    "c": 0.0481,
    "h": 218.5
  },
  "luminance": 0.19069
}

Semantic roles & 50–950 ramp

primary

#577F8B

secondary

#AE978F

accent

#7C68BF

background

#F8FAFA

surface

#F0F4F4

border

#CBCECE

text

#0C0F10

muted

#7D7F7F

Preview Lab

Preview with #577F8B

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

Preview Lab → · Contrast checker → · Palette generator →