#577E8B#577E8B

#577E8B is a mid, muted cyan. Relative luminance 0.188; OKLCH L 56.9% C 0.048 H 220.7°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#577E8B
RGB	rgb(87, 126, 139)
HSL	hsl(195, 23%, 44%)
HSV	hsv(195, 37%, 55%)
CMYK	cmyk(37.4%, 9.4%, 0%, 45.5%)
CIE-LAB	lab(50.47, -10.12, -11.37)
CIE-LCH	lch(50.47, 15.23, 228.33°)
OKLab	oklab(56.9% -0.0363 -0.0312)
OKLCH	oklch(56.9% 0.048 220.7)
XYZ	xyz(16.0500, 18.8111, 27.2063)
Luminance	0.1881 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577E8B #8B6457

analogous

#578B7E #577E8B #57648B

triadic

#577E8B #8B577E #7E8B57

tetradic

#577E8B #7E578B #8B6457 #648B57

square

#577E8B #7E578B #8B6457 #648B57

split-complementary

#577E8B #8B5764 #8B7E57

monochromatic

#283A40 #3F5C65 #577E8B #769CA9 #9CB7C1

Accessibility & contrast

On white

4.41

#577E8B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#577E8B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577E8B

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577E8B	#FFFFFF	#000000	##000000
##577E8B	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#767C8C

Deuteranopia (green-blind)

#6E758B

Tritanopia (blue-blind)

#448282

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #577e8b;
/* rgb */ color: rgb(87, 126, 139);
/* oklch */ color: oklch(56.9% 0.048 220.7);

Tailwind

colors: {
  custom: {
    50: '#88a3ac',
    500: '#577e8b',
    950: '#000000',
  },
}

SCSS

$custom: #577e8b;
$custom-light: #88a3ac;
$custom-dark: #000000;

JSON

{
  "hex": "#577e8b",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 139
  },
  "hsl": {
    "h": 195,
    "s": 23.009,
    "l": 44.314
  },
  "oklch": {
    "l": 0.56901,
    "c": 0.04786,
    "h": 220.7
  },
  "luminance": 0.18812
}

Semantic roles & 50–950 ramp

primary

#577E8B

secondary

#AE978F

accent

#7E68BF

background

#F8FAFA

surface

#F0F3F4

border

#CBCDCE

text

#0C0F10

muted

#7D7F7F

Preview Lab

Preview with #577E8B

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

Preview Lab → · Contrast checker → · Palette generator →