#577EE8#577EE8

#577EE8 is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.7% C 0.166 H 266.4°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#577EE8
RGB	rgb(87, 126, 232)
HSL	hsl(224, 76%, 63%)
HSV	hsv(224, 63%, 91%)
CMYK	cmyk(62.5%, 45.7%, 0%, 9%)
CIE-LAB	lab(54.84, 19.04, -57.85)
CIE-LCH	lch(54.84, 60.91, 288.22°)
OKLab	oklab(61.74% -0.0103 -0.1653)
OKLCH	oklch(61.74% 0.166 266.4)
XYZ	xyz(25.9518, 22.7718, 79.3561)
Luminance	0.2277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EE8 #E8C157

analogous

#57C7E8 #577EE8 #7857E8

triadic

#577EE8 #E8577E #7EE857

tetradic

#577EE8 #E857C7 #E8C157 #57E878

square

#577EE8 #E857C7 #E8C157 #57E878

split-complementary

#577EE8 #E87857 #C7E857

monochromatic

#1840AD #2155E1 #577EE8 #8DA7EF #C3D1F7

Accessibility & contrast

On white

3.78

#577EE8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#577EE8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EE8

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EE8	#FFFFFF	#000000	##000000
##577EE8	1.00	3.78	5.55	5.55
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A8AEC

Deuteranopia (green-blind)

#317DE6

Tritanopia (blue-blind)

#0096A8

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #577ee8;
/* rgb */ color: rgb(87, 126, 232);
/* oklch */ color: oklch(61.7% 0.166 266.4);

Tailwind

colors: {
  custom: {
    50: '#93a2f0',
    500: '#577ee8',
    950: '#000000',
  },
}

SCSS

$custom: #577ee8;
$custom-light: #93a2f0;
$custom-dark: #000000;

JSON

{
  "hex": "#577ee8",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 232
  },
  "hsl": {
    "h": 223.862,
    "s": 75.916,
    "l": 62.549
  },
  "oklch": {
    "l": 0.61737,
    "c": 0.16565,
    "h": 266.4
  },
  "luminance": 0.22774
}

Semantic roles & 50–950 ramp

primary

#577EE8

secondary

#E8DAB3

accent

#A20DD8

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #577EE8

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

Preview Lab → · Contrast checker → · Palette generator →