#577EA3#577EA3

#577EA3 is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 57.9% C 0.072 H 247.9°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#577EA3
RGB	rgb(87, 126, 163)
HSL	hsl(209, 30%, 49%)
HSV	hsv(209, 47%, 64%)
CMYK	cmyk(46.6%, 22.7%, 0%, 36.1%)
CIE-LAB	lab(51.37, -3.26, -24.00)
CIE-LCH	lch(51.37, 24.22, 262.26°)
OKLab	oklab(57.92% -0.0272 -0.0668)
OKLCH	oklch(57.92% 0.072 247.9)
XYZ	xyz(17.9999, 19.5911, 37.4762)
Luminance	0.1959 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EA3 #A37C57

analogous

#57A3A2 #577EA3 #5758A3

triadic

#577EA3 #A3577E #7EA357

tetradic

#577EA3 #A257A3 #A37C57 #58A357

square

#577EA3 #A257A3 #A37C57 #58A357

split-complementary

#577EA3 #A35758 #A3A257

monochromatic

#2C4053 #425F7B #577EA3 #7D9CBA #A5BBCF

Accessibility & contrast

On white

4.27

#577EA3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#577EA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EA3

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EA3	#FFFFFF	#000000	##000000
##577EA3	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7FA5

Deuteranopia (green-blind)

#6577A2

Tritanopia (blue-blind)

#37878A

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #577ea3;
/* rgb */ color: rgb(87, 126, 163);
/* oklch */ color: oklch(57.9% 0.072 247.9);

Tailwind

colors: {
  custom: {
    50: '#8aa3be',
    500: '#577ea3',
    950: '#000000',
  },
}

SCSS

$custom: #577ea3;
$custom-light: #8aa3be;
$custom-dark: #000000;

JSON

{
  "hex": "#577ea3",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 163
  },
  "hsl": {
    "h": 209.211,
    "s": 30.4,
    "l": 49.02
  },
  "oklch": {
    "l": 0.57918,
    "c": 0.07212,
    "h": 247.9
  },
  "luminance": 0.19592
}

Semantic roles & 50–950 ramp

primary

#577EA3

secondary

#BDAA99

accent

#9361C7

background

#F8FAFB

surface

#F0F3F6

border

#CBCDD0

text

#0C0F12

muted

#7D7F81

Preview Lab

Preview with #577EA3

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

Preview Lab → · Contrast checker → · Palette generator →