#577BFD#577BFD

#577BFD is a light, vivid blue. Relative luminance 0.233; OKLCH L 62.6% C 0.197 H 268.5°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#577BFD
RGB	rgb(87, 123, 253)
HSL	hsl(227, 98%, 67%)
HSV	hsv(227, 66%, 99%)
CMYK	cmyk(65.6%, 51.4%, 0%, 0.8%)
CIE-LAB	lab(55.36, 28.00, -68.67)
CIE-LCH	lch(55.36, 74.16, 292.18°)
OKLab	oklab(62.55% -0.0052 -0.1972)
OKLCH	oklch(62.55% 0.197 268.5)
XYZ	xyz(28.7370, 23.2813, 95.8888)
Luminance	0.2328 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577BFD #FDD957

analogous

#57CEFD #577BFD #8657FD

triadic

#577BFD #FD577B #7BFD57

tetradic

#577BFD #FD57CE #FDD957 #57FD86

square

#577BFD #FD57CE #FDD957 #57FD86

split-complementary

#577BFD #FD8657 #CEFD57

monochromatic

#0331D7 #1B4BFC #577BFD #93ABFE #D0DAFE

Accessibility & contrast

On white

3.71

#577BFD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#577BFD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577BFD

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577BFD	#FFFFFF	#000000	##000000
##577BFD	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#298CFF

Deuteranopia (green-blind)

#007DFA

Tritanopia (blue-blind)

#009AB0

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #577bfd;
/* rgb */ color: rgb(87, 123, 253);
/* oklch */ color: oklch(62.6% 0.197 268.5);

Tailwind

colors: {
  custom: {
    50: '#97a0ff',
    500: '#577bfd',
    950: '#000000',
  },
}

SCSS

$custom: #577bfd;
$custom-light: #97a0ff;
$custom-dark: #000000;

JSON

{
  "hex": "#577bfd",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 253
  },
  "hsl": {
    "h": 226.988,
    "s": 97.647,
    "l": 66.667
  },
  "oklch": {
    "l": 0.62553,
    "c": 0.19726,
    "h": 268.5
  },
  "luminance": 0.23284
}

Semantic roles & 50–950 ramp

primary

#577BFD

secondary

#F3E7BD

accent

#B400E6

background

#FAF9FF

surface

#F3F2FF

border

#CDCCD7

text

#0F0E18

muted

#7F7E86

Preview Lab

Preview with #577BFD

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

Preview Lab → · Contrast checker → · Palette generator →