#577AC8#577AC8

#577AC8 is a mid, vivid blue. Relative luminance 0.201; OKLCH L 59.0% C 0.126 H 264.6°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#577AC8
RGB	rgb(87, 122, 200)
HSL	hsl(221, 51%, 56%)
HSV	hsv(221, 57%, 78%)
CMYK	cmyk(56.5%, 39%, 0%, 21.6%)
CIE-LAB	lab(51.97, 10.80, -44.38)
CIE-LCH	lch(51.97, 45.67, 283.68°)
OKLab	oklab(58.95% -0.0119 -0.1258)
OKLCH	oklch(58.95% 0.126 264.6)
XYZ	xyz(21.3118, 20.1138, 57.3917)
Luminance	0.2011 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577AC8 #C8A557

analogous

#57B3C8 #577AC8 #6D57C8

triadic

#577AC8 #C8577A #7AC857

tetradic

#577AC8 #C857B3 #C8A557 #57C86D

square

#577AC8 #C857B3 #C8A557 #57C86D

split-complementary

#577AC8 #C86D57 #B3C857

monochromatic

#29427C #385BAA #577AC8 #859FD7 #B3C3E6

Accessibility & contrast

On white

4.18

#577AC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#577AC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577AC8

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577AC8	#FFFFFF	#000000	##000000
##577AC8	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5981CB

Deuteranopia (green-blind)

#4B77C6

Tritanopia (blue-blind)

#058B97

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #577ac8;
/* rgb */ color: rgb(87, 122, 200);
/* oklch */ color: oklch(59.0% 0.126 264.6);

Tailwind

colors: {
  custom: {
    50: '#8fa0d9',
    500: '#577ac8',
    950: '#000000',
  },
}

SCSS

$custom: #577ac8;
$custom-light: #8fa0d9;
$custom-dark: #000000;

JSON

{
  "hex": "#577ac8",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 200
  },
  "hsl": {
    "h": 221.416,
    "s": 50.673,
    "l": 56.275
  },
  "oklch": {
    "l": 0.5895,
    "c": 0.1264,
    "h": 264.6
  },
  "luminance": 0.20115
}

Semantic roles & 50–950 ramp

primary

#577AC8

secondary

#D5C6A6

accent

#AF4EDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #577AC8

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

Preview Lab → · Contrast checker → · Palette generator →