#577A99#577A99

#577A99 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.5% C 0.063 H 245.9°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#577A99
RGB	rgb(87, 122, 153)
HSL	hsl(208, 28%, 47%)
HSV	hsv(208, 43%, 60%)
CMYK	cmyk(43.1%, 20.3%, 0%, 40%)
CIE-LAB	lab(49.79, -3.88, -20.61)
CIE-LCH	lch(49.79, 20.97, 259.33°)
OKLab	oklab(56.54% -0.0255 -0.0571)
OKLCH	oklch(56.54% 0.063 245.9)
XYZ	xyz(16.6379, 18.2442, 32.7756)
Luminance	0.1825 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577A99 #997657

analogous

#579997 #577A99 #575999

triadic

#577A99 #99577A #7A9957

tetradic

#577A99 #975799 #997657 #599957

square

#577A99 #975799 #997657 #599957

split-complementary

#577A99 #995759 #999757

monochromatic

#2B3C4B #415B72 #577A99 #7A98B3 #A1B6C9

Accessibility & contrast

On white

4.52

#577A99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#577A99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577A99

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577A99	#FFFFFF	#000000	##000000
##577A99	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7A9A

Deuteranopia (green-blind)

#657398

Tritanopia (blue-blind)

#3E8184

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #577a99;
/* rgb */ color: rgb(87, 122, 153);
/* oklch */ color: oklch(56.5% 0.063 245.9);

Tailwind

colors: {
  custom: {
    50: '#89a0b7',
    500: '#577a99',
    950: '#000000',
  },
}

SCSS

$custom: #577a99;
$custom-light: #89a0b7;
$custom-dark: #000000;

JSON

{
  "hex": "#577a99",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 153
  },
  "hsl": {
    "h": 208.182,
    "s": 27.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.56539,
    "c": 0.06256,
    "h": 245.9
  },
  "luminance": 0.18245
}

Semantic roles & 50–950 ramp

primary

#577A99

secondary

#B7A595

accent

#9164C4

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0E11

muted

#7D7E80

Preview Lab

Preview with #577A99

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

Preview Lab → · Contrast checker → · Palette generator →