#577CFD#577CFD

#577CFD is a light, vivid blue. Relative luminance 0.235; OKLCH L 62.7% C 0.196 H 268.2°. Best body text is #000000 at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#577CFD
RGB	rgb(87, 124, 253)
HSL	hsl(227, 98%, 67%)
HSV	hsv(227, 66%, 99%)
CMYK	cmyk(65.6%, 51%, 0%, 0.8%)
CIE-LAB	lab(55.61, 27.39, -68.26)
CIE-LCH	lch(55.61, 73.55, 291.86°)
OKLab	oklab(62.75% -0.006 -0.196)
OKLCH	oklch(62.75% 0.196 268.2)
XYZ	xyz(28.8617, 23.5307, 95.9303)
Luminance	0.2353 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577CFD #FDD857

analogous

#57CFFD #577CFD #8557FD

triadic

#577CFD #FD577C #7CFD57

tetradic

#577CFD #FD57CF #FDD857 #57FD85

square

#577CFD #FD57CF #FDD857 #57FD85

split-complementary

#577CFD #FD8557 #CFFD57

monochromatic

#0332D7 #1B4DFC #577CFD #93ABFE #D0DAFE

Accessibility & contrast

On white

3.68

#577CFD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.71

#577CFD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577CFD

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577CFD	#FFFFFF	#000000	##000000
##577CFD	1.00	3.68	5.71	5.71
#FFFFFF	3.68	1.00	21.00	21.00
#000000	5.71	21.00	1.00	1.00
##000000	5.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C8DFF

Deuteranopia (green-blind)

#007EFA

Tritanopia (blue-blind)

#009AB1

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #577cfd;
/* rgb */ color: rgb(87, 124, 253);
/* oklch */ color: oklch(62.7% 0.196 268.2);

Tailwind

colors: {
  custom: {
    50: '#97a1ff',
    500: '#577cfd',
    950: '#000000',
  },
}

SCSS

$custom: #577cfd;
$custom-light: #97a1ff;
$custom-dark: #000000;

JSON

{
  "hex": "#577cfd",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 253
  },
  "hsl": {
    "h": 226.627,
    "s": 97.647,
    "l": 66.667
  },
  "oklch": {
    "l": 0.62745,
    "c": 0.19606,
    "h": 268.2
  },
  "luminance": 0.23533
}

Semantic roles & 50–950 ramp

primary

#577CFD

secondary

#F3E7BD

accent

#B200E6

background

#FAF9FF

surface

#F3F2FF

border

#CDCCD7

text

#0F0E18

muted

#7F7E86

Preview Lab

Preview with #577CFD

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

Preview Lab → · Contrast checker → · Palette generator →