#577AE4#577AE4

#577AE4 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.7% C 0.165 H 267.6°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#577AE4
RGB	rgb(87, 122, 228)
HSL	hsl(225, 72%, 62%)
HSV	hsv(225, 62%, 89%)
CMYK	cmyk(61.8%, 46.5%, 0%, 10.6%)
CIE-LAB	lab(53.54, 20.14, -57.69)
CIE-LCH	lch(53.54, 61.11, 289.24°)
OKLab	oklab(60.67% -0.007 -0.1649)
OKLCH	oklch(60.67% 0.165 267.6)
XYZ	xyz(24.8888, 21.5446, 76.2307)
Luminance	0.2155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577AE4 #E4C157

analogous

#57C1E4 #577AE4 #7A57E4

triadic

#577AE4 #E4577A #7AE457

tetradic

#577AE4 #E457C1 #E4C157 #57E47A

square

#577AE4 #E457C1 #E4C157 #57E47A

split-complementary

#577AE4 #E47A57 #C1E457

monochromatic

#1B3DA6 #2351DB #577AE4 #8CA4EC #C0CDF5

Accessibility & contrast

On white

3.96

#577AE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#577AE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577AE4

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577AE4	#FFFFFF	#000000	##000000
##577AE4	1.00	3.96	5.31	5.31
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4687E8

Deuteranopia (green-blind)

#2C7AE2

Tritanopia (blue-blind)

#0092A4

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #577ae4;
/* rgb */ color: rgb(87, 122, 228);
/* oklch */ color: oklch(60.7% 0.165 267.6);

Tailwind

colors: {
  custom: {
    50: '#93a0ed',
    500: '#577ae4',
    950: '#000000',
  },
}

SCSS

$custom: #577ae4;
$custom-light: #93a0ed;
$custom-dark: #000000;

JSON

{
  "hex": "#577ae4",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 228
  },
  "hsl": {
    "h": 225.106,
    "s": 72.308,
    "l": 61.765
  },
  "oklch": {
    "l": 0.6067,
    "c": 0.16506,
    "h": 267.6
  },
  "luminance": 0.21547
}

Semantic roles & 50–950 ramp

primary

#577AE4

secondary

#E6D9B1

accent

#A411D4

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #577AE4

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

Preview Lab → · Contrast checker → · Palette generator →