#577C90#577C90

#577C90 is a mid, muted cyan. Relative luminance 0.185; OKLCH L 56.6% C 0.052 H 232.5°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#577C90
RGB	rgb(87, 124, 144)
HSL	hsl(201, 25%, 45%)
HSV	hsv(201, 40%, 56%)
CMYK	cmyk(39.6%, 13.9%, 0%, 43.5%)
CIE-LAB	lab(50.04, -7.61, -14.95)
CIE-LCH	lch(50.04, 16.77, 243.01°)
OKLab	oklab(56.62% -0.0316 -0.0412)
OKLCH	oklch(56.62% 0.052 232.5)
XYZ	xyz(16.1705, 18.4542, 29.0901)
Luminance	0.1845 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577C90 #906B57

analogous

#579087 #577C90 #575F90

triadic

#577C90 #90577C #7C9057

tetradic

#577C90 #875790 #906B57 #5F9057

square

#577C90 #875790 #906B57 #5F9057

split-complementary

#577C90 #90575F #908757

monochromatic

#293A44 #405B6A #577C90 #779AAD #9DB6C4

Accessibility & contrast

On white

4.48

#577C90 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#577C90 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577C90

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577C90	#FFFFFF	#000000	##000000
##577C90	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#727B91

Deuteranopia (green-blind)

#6A7490

Tritanopia (blue-blind)

#428182

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #577c90;
/* rgb */ color: rgb(87, 124, 144);
/* oklch */ color: oklch(56.6% 0.052 232.5);

Tailwind

colors: {
  custom: {
    50: '#89a1b0',
    500: '#577c90',
    950: '#000000',
  },
}

SCSS

$custom: #577c90;
$custom-light: #89a1b0;
$custom-dark: #000000;

JSON

{
  "hex": "#577c90",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 144
  },
  "hsl": {
    "h": 201.053,
    "s": 24.675,
    "l": 45.294
  },
  "oklch": {
    "l": 0.56624,
    "c": 0.05188,
    "h": 232.5
  },
  "luminance": 0.18455
}

Semantic roles & 50–950 ramp

primary

#577C90

secondary

#B29D91

accent

#8667C1

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0C0F10

muted

#7D7E7F

Preview Lab

Preview with #577C90

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

Preview Lab → · Contrast checker → · Palette generator →