#577FF2#577FF2

#577FF2 is a light, vivid blue. Relative luminance 0.236; OKLCH L 62.6% C 0.178 H 266.8°. Best body text is #000000 at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#577FF2
RGB	rgb(87, 127, 242)
HSL	hsl(225, 86%, 65%)
HSV	hsv(225, 64%, 95%)
CMYK	cmyk(64%, 47.5%, 0%, 5.1%)
CIE-LAB	lab(55.70, 21.82, -62.04)
CIE-LCH	lch(55.70, 65.76, 289.38°)
OKLab	oklab(62.59% -0.0099 -0.1776)
OKLCH	oklch(62.59% 0.178 266.8)
XYZ	xyz(27.5413, 23.6132, 87.0936)
Luminance	0.2362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FF2 #F2CA57

analogous

#57CDF2 #577FF2 #7D57F2

triadic

#577FF2 #F2577F #7FF257

tetradic

#577FF2 #F257CD #F2CA57 #57F27D

square

#577FF2 #F257CD #F2CA57 #57F27D

split-complementary

#577FF2 #F27D57 #CDF257

monochromatic

#0F3CC0 #1E54EE #577FF2 #90AAF6 #C9D6FB

Accessibility & contrast

On white

3.67

#577FF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.72

#577FF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FF2

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FF2	#FFFFFF	#000000	##000000
##577FF2	1.00	3.67	5.72	5.72
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.72	21.00	1.00	1.00
##000000	5.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#438DF6

Deuteranopia (green-blind)

#217FF0

Tritanopia (blue-blind)

#009AAD

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #577ff2;
/* rgb */ color: rgb(87, 127, 242);
/* oklch */ color: oklch(62.6% 0.178 266.8);

Tailwind

colors: {
  custom: {
    50: '#95a3f7',
    500: '#577ff2',
    950: '#000000',
  },
}

SCSS

$custom: #577ff2;
$custom-light: #95a3f7;
$custom-dark: #000000;

JSON

{
  "hex": "#577ff2",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 242
  },
  "hsl": {
    "h": 224.516,
    "s": 85.635,
    "l": 64.51
  },
  "oklch": {
    "l": 0.62588,
    "c": 0.1779,
    "h": 266.8
  },
  "luminance": 0.23616
}

Semantic roles & 50–950 ramp

primary

#577FF2

secondary

#EDDFB8

accent

#A903E2

background

#F9FAFF

surface

#F2F3FF

border

#CCCDD7

text

#0F0F17

muted

#7E7F85

Preview Lab

Preview with #577FF2

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

Preview Lab → · Contrast checker → · Palette generator →