#577B8D#577B8D

#577B8D is a mid, muted cyan. Relative luminance 0.181; OKLCH L 56.3% C 0.049 H 230.4°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#577B8D
RGB	rgb(87, 123, 141)
HSL	hsl(200, 24%, 45%)
HSV	hsv(200, 38%, 55%)
CMYK	cmyk(38.3%, 12.8%, 0%, 44.7%)
CIE-LAB	lab(49.63, -7.87, -13.80)
CIE-LCH	lch(49.63, 15.89, 240.31°)
OKLab	oklab(56.27% -0.0314 -0.0379)
OKLCH	oklch(56.27% 0.049 230.4)
XYZ	xyz(15.8196, 18.1143, 27.8570)
Luminance	0.1812 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577B8D #8D6957

analogous

#578D84 #577B8D #57608D

triadic

#577B8D #8D577B #7B8D57

tetradic

#577B8D #84578D #8D6957 #608D57

square

#577B8D #84578D #8D6957 #608D57

split-complementary

#577B8D #8D5760 #8D8457

monochromatic

#283941 #405A67 #577B8D #7699AB #9CB6C2

Accessibility & contrast

On white

4.54

#577B8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#577B8D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577B8D

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577B8D	#FFFFFF	#000000	##000000
##577B8D	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#727A8E

Deuteranopia (green-blind)

#6A738D

Tritanopia (blue-blind)

#438081

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #577b8d;
/* rgb */ color: rgb(87, 123, 141);
/* oklch */ color: oklch(56.3% 0.049 230.4);

Tailwind

colors: {
  custom: {
    50: '#88a1ae',
    500: '#577b8d',
    950: '#000000',
  },
}

SCSS

$custom: #577b8d;
$custom-light: #88a1ae;
$custom-dark: #000000;

JSON

{
  "hex": "#577b8d",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 141
  },
  "hsl": {
    "h": 200,
    "s": 23.684,
    "l": 44.706
  },
  "oklch": {
    "l": 0.56265,
    "c": 0.04928,
    "h": 230.4
  },
  "luminance": 0.18115
}

Semantic roles & 50–950 ramp

primary

#577B8D

secondary

#B09B90

accent

#8568C0

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0C0E10

muted

#7D7E7F

Preview Lab

Preview with #577B8D

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

Preview Lab → · Contrast checker → · Palette generator →