#577AE3#577AE3

#577AE3 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.6% C 0.164 H 267.5°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#577AE3
RGB	rgb(87, 122, 227)
HSL	hsl(225, 71%, 62%)
HSV	hsv(225, 62%, 89%)
CMYK	cmyk(61.7%, 46.3%, 0%, 11%)
CIE-LAB	lab(53.48, 19.80, -57.23)
CIE-LCH	lch(53.48, 60.56, 289.09°)
OKLab	oklab(60.61% -0.0071 -0.1635)
OKLCH	oklch(60.61% 0.164 267.5)
XYZ	xyz(24.7504, 21.4892, 75.5017)
Luminance	0.2149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577AE3 #E3C057

analogous

#57C0E3 #577AE3 #7A57E3

triadic

#577AE3 #E3577A #7AE357

tetradic

#577AE3 #E357C0 #E3C057 #57E37A

square

#577AE3 #E357C0 #E3C057 #57E37A

split-complementary

#577AE3 #E37A57 #C0E357

monochromatic

#1B3EA4 #2451D9 #577AE3 #8BA4EC #C0CDF4

Accessibility & contrast

On white

3.96

#577AE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#577AE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577AE3

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577AE3	#FFFFFF	#000000	##000000
##577AE3	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4686E7

Deuteranopia (green-blind)

#2E7AE1

Tritanopia (blue-blind)

#0092A3

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #577ae3;
/* rgb */ color: rgb(87, 122, 227);
/* oklch */ color: oklch(60.6% 0.164 267.5);

Tailwind

colors: {
  custom: {
    50: '#93a0ec',
    500: '#577ae3',
    950: '#000000',
  },
}

SCSS

$custom: #577ae3;
$custom-light: #93a0ec;
$custom-dark: #000000;

JSON

{
  "hex": "#577ae3",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 227
  },
  "hsl": {
    "h": 225,
    "s": 71.429,
    "l": 61.569
  },
  "oklch": {
    "l": 0.60605,
    "c": 0.16371,
    "h": 267.5
  },
  "luminance": 0.21491
}

Semantic roles & 50–950 ramp

primary

#577AE3

secondary

#E5D8B1

accent

#A312D3

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #577AE3

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

Preview Lab → · Contrast checker → · Palette generator →