#577BA1#577BA1

#577BA1 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.1% C 0.072 H 250.5°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#577BA1
RGB	rgb(87, 123, 161)
HSL	hsl(211, 30%, 49%)
HSV	hsv(211, 46%, 63%)
CMYK	cmyk(46%, 23.6%, 0%, 36.9%)
CIE-LAB	lab(50.41, -2.10, -24.32)
CIE-LCH	lch(50.41, 24.41, 265.05°)
OKLab	oklab(57.13% -0.024 -0.0677)
OKLCH	oklch(57.13% 0.072 250.5)
XYZ	xyz(17.4443, 18.7642, 36.4139)
Luminance	0.1877 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577BA1 #A17D57

analogous

#57A0A1 #577BA1 #5857A1

triadic

#577BA1 #A1577B #7BA157

tetradic

#577BA1 #A157A0 #A17D57 #57A158

square

#577BA1 #A157A0 #A17D57 #57A158

split-complementary

#577BA1 #A15857 #A0A157

monochromatic

#2C3E52 #425D79 #577BA1 #7D9AB9 #A4B9CE

Accessibility & contrast

On white

4.42

#577BA1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#577BA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577BA1

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577BA1	#FFFFFF	#000000	##000000
##577BA1	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7CA3

Deuteranopia (green-blind)

#6375A0

Tritanopia (blue-blind)

#398488

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #577ba1;
/* rgb */ color: rgb(87, 123, 161);
/* oklch */ color: oklch(57.1% 0.072 250.5);

Tailwind

colors: {
  custom: {
    50: '#8aa1bd',
    500: '#577ba1',
    950: '#000000',
  },
}

SCSS

$custom: #577ba1;
$custom-light: #8aa1bd;
$custom-dark: #000000;

JSON

{
  "hex": "#577ba1",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 161
  },
  "hsl": {
    "h": 210.811,
    "s": 29.839,
    "l": 48.627
  },
  "oklch": {
    "l": 0.57134,
    "c": 0.07185,
    "h": 250.5
  },
  "luminance": 0.18765
}

Semantic roles & 50–950 ramp

primary

#577BA1

secondary

#BCAA98

accent

#9562C6

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0E12

muted

#7D7E81

Preview Lab

Preview with #577BA1

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

Preview Lab → · Contrast checker → · Palette generator →