#577CA3#577CA3

#577CA3 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.5% C 0.074 H 250.5°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#577CA3
RGB	rgb(87, 124, 163)
HSL	hsl(211, 30%, 49%)
HSV	hsv(211, 47%, 64%)
CMYK	cmyk(46.6%, 23.9%, 0%, 36.1%)
CIE-LAB	lab(50.79, -2.09, -24.91)
CIE-LCH	lch(50.79, 25.00, 265.20°)
OKLab	oklab(57.46% -0.0246 -0.0694)
OKLCH	oklch(57.46% 0.074 250.5)
XYZ	xyz(17.7468, 19.0847, 37.3918)
Luminance	0.1909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577CA3 #A37E57

analogous

#57A2A3 #577CA3 #5857A3

triadic

#577CA3 #A3577C #7CA357

tetradic

#577CA3 #A357A2 #A37E57 #57A358

square

#577CA3 #A357A2 #A37E57 #57A358

split-complementary

#577CA3 #A35857 #A2A357

monochromatic

#2C3F53 #425E7B #577CA3 #7D9BBA #A5BACF

Accessibility & contrast

On white

4.36

#577CA3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#577CA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577CA3

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577CA3	#FFFFFF	#000000	##000000
##577CA3	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7DA5

Deuteranopia (green-blind)

#6376A2

Tritanopia (blue-blind)

#378589

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #577ca3;
/* rgb */ color: rgb(87, 124, 163);
/* oklch */ color: oklch(57.5% 0.074 250.5);

Tailwind

colors: {
  custom: {
    50: '#8aa1be',
    500: '#577ca3',
    950: '#000000',
  },
}

SCSS

$custom: #577ca3;
$custom-light: #8aa1be;
$custom-dark: #000000;

JSON

{
  "hex": "#577ca3",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 163
  },
  "hsl": {
    "h": 210.789,
    "s": 30.4,
    "l": 49.02
  },
  "oklch": {
    "l": 0.57457,
    "c": 0.07362,
    "h": 250.5
  },
  "luminance": 0.19086
}

Semantic roles & 50–950 ramp

primary

#577CA3

secondary

#BDAB99

accent

#9561C7

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0F12

muted

#7D7E81

Preview Lab

Preview with #577CA3

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

Preview Lab → · Contrast checker → · Palette generator →