#577EFD#577EFD

#577EFD is a light, vivid blue. Relative luminance 0.240; OKLCH L 63.1% C 0.194 H 267.7°. Best body text is #000000 at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#577EFD
RGB	rgb(87, 126, 253)
HSL	hsl(226, 98%, 67%)
HSV	hsv(226, 66%, 99%)
CMYK	cmyk(65.6%, 50.2%, 0%, 0.8%)
CIE-LAB	lab(56.12, 26.17, -67.44)
CIE-LCH	lch(56.12, 72.33, 291.21°)
OKLab	oklab(63.13% -0.0078 -0.1935)
OKLCH	oklch(63.13% 0.194 267.7)
XYZ	xyz(29.1149, 24.0370, 96.0147)
Luminance	0.2404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EFD #FDD657

analogous

#57D1FD #577EFD #8357FD

triadic

#577EFD #FD577E #7EFD57

tetradic

#577EFD #FD57D1 #FDD657 #57FD83

square

#577EFD #FD57D1 #FDD657 #57FD83

split-complementary

#577EFD #FD8357 #D1FD57

monochromatic

#0334D7 #1B50FC #577EFD #93ACFE #D0DBFE

Accessibility & contrast

On white

3.62

#577EFD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.81

#577EFD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EFD

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EFD	#FFFFFF	#000000	##000000
##577EFD	1.00	3.62	5.81	5.81
#FFFFFF	3.62	1.00	21.00	21.00
#000000	5.81	21.00	1.00	1.00
##000000	5.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#338EFF

Deuteranopia (green-blind)

#007FFA

Tritanopia (blue-blind)

#009CB2

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #577efd;
/* rgb */ color: rgb(87, 126, 253);
/* oklch */ color: oklch(63.1% 0.194 267.7);

Tailwind

colors: {
  custom: {
    50: '#97a2ff',
    500: '#577efd',
    950: '#000000',
  },
}

SCSS

$custom: #577efd;
$custom-light: #97a2ff;
$custom-dark: #000000;

JSON

{
  "hex": "#577efd",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 253
  },
  "hsl": {
    "h": 225.904,
    "s": 97.647,
    "l": 66.667
  },
  "oklch": {
    "l": 0.63132,
    "c": 0.19368,
    "h": 267.7
  },
  "luminance": 0.2404
}

Semantic roles & 50–950 ramp

primary

#577EFD

secondary

#F3E6BD

accent

#B000E6

background

#FAF9FF

surface

#F3F2FF

border

#CDCCD7

text

#0F0F18

muted

#7F7E86

Preview Lab

Preview with #577EFD

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

Preview Lab → · Contrast checker → · Palette generator →