#577B9A#577B9A

#577B9A is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.8% C 0.063 H 245.2°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#577B9A
RGB	rgb(87, 123, 154)
HSL	hsl(208, 28%, 47%)
HSV	hsv(208, 44%, 60%)
CMYK	cmyk(43.5%, 20.1%, 0%, 39.6%)
CIE-LAB	lab(50.13, -4.18, -20.68)
CIE-LCH	lch(50.13, 21.09, 258.58°)
OKLab	oklab(56.82% -0.0265 -0.0573)
OKLCH	oklch(56.82% 0.063 245.2)
XYZ	xyz(16.8442, 18.5242, 33.2535)
Luminance	0.1852 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577B9A #9A7657

analogous

#579A98 #577B9A #575A9A

triadic

#577B9A #9A577B #7B9A57

tetradic

#577B9A #98579A #9A7657 #5A9A57

square

#577B9A #98579A #9A7657 #5A9A57

split-complementary

#577B9A #9A575A #9A9857

monochromatic

#2B3D4C #415C73 #577B9A #7A99B4 #A1B7CA

Accessibility & contrast

On white

4.46

#577B9A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#577B9A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577B9A

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577B9A	#FFFFFF	#000000	##000000
##577B9A	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)

#6E7B9B

Deuteranopia (green-blind)

#667499

Tritanopia (blue-blind)

#3D8285

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #577b9a;
/* rgb */ color: rgb(87, 123, 154);
/* oklch */ color: oklch(56.8% 0.063 245.2);

Tailwind

colors: {
  custom: {
    50: '#89a1b7',
    500: '#577b9a',
    950: '#000000',
  },
}

SCSS

$custom: #577b9a;
$custom-light: #89a1b7;
$custom-dark: #000000;

JSON

{
  "hex": "#577b9a",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 154
  },
  "hsl": {
    "h": 207.761,
    "s": 27.801,
    "l": 47.255
  },
  "oklch": {
    "l": 0.56816,
    "c": 0.06314,
    "h": 245.2
  },
  "luminance": 0.18525
}

Semantic roles & 50–950 ramp

primary

#577B9A

secondary

#B8A595

accent

#9064C4

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0E11

muted

#7D7E80

Preview Lab

Preview with #577B9A

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

Preview Lab → · Contrast checker → · Palette generator →