#577BA4#577BA4

#577BA4 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.3% C 0.076 H 252.3°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#577BA4
RGB	rgb(87, 123, 164)
HSL	hsl(212, 31%, 49%)
HSV	hsv(212, 47%, 64%)
CMYK	cmyk(47%, 25%, 0%, 35.7%)
CIE-LAB	lab(50.54, -1.20, -25.88)
CIE-LCH	lch(50.54, 25.90, 267.34°)
OKLab	oklab(57.28% -0.023 -0.0722)
OKLCH	oklch(57.28% 0.076 252.3)
XYZ	xyz(17.7120, 18.8713, 37.8240)
Luminance	0.1887 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577BA4 #A48057

analogous

#57A2A4 #577BA4 #5A57A4

triadic

#577BA4 #A4577B #7BA457

tetradic

#577BA4 #A457A2 #A48057 #57A45A

square

#577BA4 #A457A2 #A48057 #57A45A

split-complementary

#577BA4 #A45A57 #A2A457

monochromatic

#2D3F54 #425D7C #577BA4 #7E9ABA #A6B9D0

Accessibility & contrast

On white

4.40

#577BA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#577BA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577BA4

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577BA4	#FFFFFF	#000000	##000000
##577BA4	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7DA6

Deuteranopia (green-blind)

#6275A3

Tritanopia (blue-blind)

#378489

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #577ba4;
/* rgb */ color: rgb(87, 123, 164);
/* oklch */ color: oklch(57.3% 0.076 252.3);

Tailwind

colors: {
  custom: {
    50: '#8aa1bf',
    500: '#577ba4',
    950: '#000000',
  },
}

SCSS

$custom: #577ba4;
$custom-light: #8aa1bf;
$custom-dark: #000000;

JSON

{
  "hex": "#577ba4",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 164
  },
  "hsl": {
    "h": 211.948,
    "s": 30.677,
    "l": 49.216
  },
  "oklch": {
    "l": 0.57275,
    "c": 0.07575,
    "h": 252.3
  },
  "luminance": 0.18872
}

Semantic roles & 50–950 ramp

primary

#577BA4

secondary

#BDAD99

accent

#9761C7

background

#F8F9FB

surface

#F0F2F7

border

#CBCCD0

text

#0C0E12

muted

#7D7E81

Preview Lab

Preview with #577BA4

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

Preview Lab → · Contrast checker → · Palette generator →