#577B98#577B98

#577B98 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.7% C 0.061 H 243.4°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#577B98
RGB	rgb(87, 123, 152)
HSL	hsl(207, 27%, 47%)
HSV	hsv(207, 43%, 60%)
CMYK	cmyk(42.8%, 19.1%, 0%, 40.4%)
CIE-LAB	lab(50.05, -4.76, -19.63)
CIE-LCH	lch(50.05, 20.20, 256.38°)
OKLab	oklab(56.73% -0.0272 -0.0543)
OKLCH	oklch(56.73% 0.061 243.4)
XYZ	xyz(16.6790, 18.4581, 32.3836)
Luminance	0.1846 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577B98 #987457

analogous

#579895 #577B98 #575B98

triadic

#577B98 #98577B #7B9857

tetradic

#577B98 #955798 #987457 #5B9857

square

#577B98 #955798 #987457 #5B9857

split-complementary

#577B98 #98575B #989557

monochromatic

#2A3C4A #415C71 #577B98 #7A99B3 #A0B7C9

Accessibility & contrast

On white

4.48

#577B98 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#577B98 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577B98

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577B98	#FFFFFF	#000000	##000000
##577B98	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7B99

Deuteranopia (green-blind)

#667497

Tritanopia (blue-blind)

#3E8285

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #577b98;
/* rgb */ color: rgb(87, 123, 152);
/* oklch */ color: oklch(56.7% 0.061 243.4);

Tailwind

colors: {
  custom: {
    50: '#89a1b6',
    500: '#577b98',
    950: '#000000',
  },
}

SCSS

$custom: #577b98;
$custom-light: #89a1b6;
$custom-dark: #000000;

JSON

{
  "hex": "#577b98",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 152
  },
  "hsl": {
    "h": 206.769,
    "s": 27.197,
    "l": 46.863
  },
  "oklch": {
    "l": 0.56728,
    "c": 0.06078,
    "h": 243.4
  },
  "luminance": 0.18459
}

Semantic roles & 50–950 ramp

primary

#577B98

secondary

#B6A494

accent

#8F64C4

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0E11

muted

#7D7E80

Preview Lab

Preview with #577B98

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

Preview Lab → · Contrast checker → · Palette generator →