#577EF2#577EF2

#577EF2 is a light, vivid blue. Relative luminance 0.234; OKLCH L 62.4% C 0.179 H 267.1°. Best body text is #000000 at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#577EF2
RGB	rgb(87, 126, 242)
HSL	hsl(225, 86%, 65%)
HSV	hsv(225, 64%, 95%)
CMYK	cmyk(64%, 47.9%, 0%, 5.1%)
CIE-LAB	lab(55.44, 22.43, -62.46)
CIE-LCH	lch(55.44, 66.36, 289.76°)
OKLab	oklab(62.39% -0.009 -0.1789)
OKLCH	oklch(62.39% 0.179 267.1)
XYZ	xyz(27.4128, 23.3562, 87.0507)
Luminance	0.2336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EF2 #F2CB57

analogous

#57CCF2 #577EF2 #7E57F2

triadic

#577EF2 #F2577E #7EF257

tetradic

#577EF2 #F257CC #F2CB57 #57F27E

square

#577EF2 #F257CC #F2CB57 #57F27E

split-complementary

#577EF2 #F27E57 #CCF257

monochromatic

#0F3BC0 #1E52EE #577EF2 #90AAF6 #C9D5FB

Accessibility & contrast

On white

3.70

#577EF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.67

#577EF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EF2

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EF2	#FFFFFF	#000000	##000000
##577EF2	1.00	3.70	5.67	5.67
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.67	21.00	1.00	1.00
##000000	5.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#418CF6

Deuteranopia (green-blind)

#1D7EF0

Tritanopia (blue-blind)

#0099AC

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #577ef2;
/* rgb */ color: rgb(87, 126, 242);
/* oklch */ color: oklch(62.4% 0.179 267.1);

Tailwind

colors: {
  custom: {
    50: '#95a2f7',
    500: '#577ef2',
    950: '#000000',
  },
}

SCSS

$custom: #577ef2;
$custom-light: #95a2f7;
$custom-dark: #000000;

JSON

{
  "hex": "#577ef2",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 242
  },
  "hsl": {
    "h": 224.903,
    "s": 85.635,
    "l": 64.51
  },
  "oklch": {
    "l": 0.62389,
    "c": 0.17909,
    "h": 267.1
  },
  "luminance": 0.23359
}

Semantic roles & 50–950 ramp

primary

#577EF2

secondary

#EDE0B8

accent

#AA03E2

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0F0F17

muted

#7E7E85

Preview Lab

Preview with #577EF2

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

Preview Lab → · Contrast checker → · Palette generator →