#577A9D#577A9D

#577A9D is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.7% C 0.068 H 249.1°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#577A9D
RGB	rgb(87, 122, 157)
HSL	hsl(210, 29%, 48%)
HSV	hsv(210, 45%, 62%)
CMYK	cmyk(44.6%, 22.3%, 0%, 38.4%)
CIE-LAB	lab(49.95, -2.71, -22.70)
CIE-LCH	lch(49.95, 22.86, 263.20°)
OKLab	oklab(56.72% -0.0241 -0.0631)
OKLCH	oklch(56.72% 0.068 249.1)
XYZ	xyz(16.9738, 18.3785, 34.5448)
Luminance	0.1838 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577A9D #9D7A57

analogous

#579D9D #577A9D #57579D

triadic

#577A9D #9D577A #7A9D57

tetradic

#577A9D #9D579D #9D7A57 #579D57

square

#577A9D #9D579D #9D7A57 #579D57

split-complementary

#577A9D #9D5757 #9D9D57

monochromatic

#2B3D4E #415B76 #577A9D #7B99B6 #A3B7CC

Accessibility & contrast

On white

4.49

#577A9D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#577A9D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577A9D

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577A9D	#FFFFFF	#000000	##000000
##577A9D	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7B9F

Deuteranopia (green-blind)

#63749C

Tritanopia (blue-blind)

#3B8286

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #577a9d;
/* rgb */ color: rgb(87, 122, 157);
/* oklch */ color: oklch(56.7% 0.068 249.1);

Tailwind

colors: {
  custom: {
    50: '#8aa0ba',
    500: '#577a9d',
    950: '#000000',
  },
}

SCSS

$custom: #577a9d;
$custom-light: #8aa0ba;
$custom-dark: #000000;

JSON

{
  "hex": "#577a9d",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 157
  },
  "hsl": {
    "h": 210,
    "s": 28.689,
    "l": 47.843
  },
  "oklch": {
    "l": 0.56719,
    "c": 0.06753,
    "h": 249.1
  },
  "luminance": 0.1838
}

Semantic roles & 50–950 ramp

primary

#577A9D

secondary

#B9A896

accent

#9463C5

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0E11

muted

#7D7E80

Preview Lab

Preview with #577A9D

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

Preview Lab → · Contrast checker → · Palette generator →