#577FF8#577FF8

#577FF8 is a light, vivid blue. Relative luminance 0.240; OKLCH L 63.0% C 0.186 H 267.2°. Best body text is #000000 at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#577FF8
RGB	rgb(87, 127, 248)
HSL	hsl(225, 92%, 66%)
HSV	hsv(225, 65%, 97%)
CMYK	cmyk(64.9%, 48.8%, 0%, 2.7%)
CIE-LAB	lab(56.07, 23.86, -64.77)
CIE-LCH	lch(56.07, 69.02, 290.22°)
OKLab	oklab(62.99% -0.0092 -0.1856)
OKLCH	oklch(62.99% 0.186 267.2)
XYZ	xyz(28.4573, 23.9796, 91.9176)
Luminance	0.2398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FF8 #F8D057

analogous

#57D0F8 #577FF8 #7F57F8

triadic

#577FF8 #F8577F #7FF857

tetradic

#577FF8 #F857D0 #F8D057 #57F87F

square

#577FF8 #F857D0 #F8D057 #57F87F

split-complementary

#577FF8 #F87F57 #D0F857

monochromatic

#0939CC #1C52F6 #577FF8 #92ACFA #CDD9FD

Accessibility & contrast

On white

3.62

#577FF8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.80

#577FF8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FF8

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FF8	#FFFFFF	#000000	##000000
##577FF8	1.00	3.62	5.80	5.80
#FFFFFF	3.62	1.00	21.00	21.00
#000000	5.80	21.00	1.00	1.00
##000000	5.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C8EFC

Deuteranopia (green-blind)

#0C7FF6

Tritanopia (blue-blind)

#009BB0

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #577ff8;
/* rgb */ color: rgb(87, 127, 248);
/* oklch */ color: oklch(63.0% 0.186 267.2);

Tailwind

colors: {
  custom: {
    50: '#96a3fb',
    500: '#577ff8',
    950: '#000000',
  },
}

SCSS

$custom: #577ff8;
$custom-light: #96a3fb;
$custom-dark: #000000;

JSON

{
  "hex": "#577ff8",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 248
  },
  "hsl": {
    "h": 225.093,
    "s": 92,
    "l": 65.686
  },
  "oklch": {
    "l": 0.62987,
    "c": 0.18588,
    "h": 267.2
  },
  "luminance": 0.23982
}

Semantic roles & 50–950 ramp

primary

#577FF8

secondary

#F0E3BB

accent

#AC00E6

background

#FAFAFF

surface

#F3F3FF

border

#CDCDD7

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #577FF8

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

Preview Lab → · Contrast checker → · Palette generator →