#577EE5#577EE5

#577EE5 is a mid, vivid blue. Relative luminance 0.226; OKLCH L 61.5% C 0.162 H 266.2°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#577EE5
RGB	rgb(87, 126, 229)
HSL	hsl(224, 73%, 62%)
HSV	hsv(224, 62%, 90%)
CMYK	cmyk(62%, 45%, 0%, 10.2%)
CIE-LAB	lab(54.66, 18.03, -56.46)
CIE-LCH	lch(54.66, 59.27, 287.71°)
OKLab	oklab(61.55% -0.0108 -0.1612)
OKLCH	oklch(61.55% 0.162 266.2)
XYZ	xyz(25.5293, 22.6028, 77.1310)
Luminance	0.2261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EE5 #E5BE57

analogous

#57C5E5 #577EE5 #7757E5

triadic

#577EE5 #E5577E #7EE557

tetradic

#577EE5 #E557C5 #E5BE57 #57E577

square

#577EE5 #E557C5 #E5BE57 #57E577

split-complementary

#577EE5 #E57757 #C5E557

monochromatic

#1A41A8 #2255DD #577EE5 #8CA7ED #C1CFF5

Accessibility & contrast

On white

3.80

#577EE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.52

#577EE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EE5

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EE5	#FFFFFF	#000000	##000000
##577EE5	1.00	3.80	5.52	5.52
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.52	21.00	1.00	1.00
##000000	5.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D8AE9

Deuteranopia (green-blind)

#357DE3

Tritanopia (blue-blind)

#0095A6

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #577ee5;
/* rgb */ color: rgb(87, 126, 229);
/* oklch */ color: oklch(61.5% 0.162 266.2);

Tailwind

colors: {
  custom: {
    50: '#93a2ee',
    500: '#577ee5',
    950: '#000000',
  },
}

SCSS

$custom: #577ee5;
$custom-light: #93a2ee;
$custom-dark: #000000;

JSON

{
  "hex": "#577ee5",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 229
  },
  "hsl": {
    "h": 223.521,
    "s": 73.196,
    "l": 61.961
  },
  "oklch": {
    "l": 0.61546,
    "c": 0.16159,
    "h": 266.2
  },
  "luminance": 0.22605
}

Semantic roles & 50–950 ramp

primary

#577EE5

secondary

#E6D8B2

accent

#9F10D5

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #577EE5

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

Preview Lab → · Contrast checker → · Palette generator →