#577FFD#577FFD

#577FFD is a light, vivid blue. Relative luminance 0.243; OKLCH L 63.3% C 0.192 H 267.4°. Best body text is #000000 at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#577FFD
RGB	rgb(87, 127, 253)
HSL	hsl(226, 98%, 67%)
HSV	hsv(226, 66%, 99%)
CMYK	cmyk(65.6%, 49.8%, 0%, 0.8%)
CIE-LAB	lab(56.38, 25.56, -67.02)
CIE-LCH	lch(56.38, 71.73, 290.87°)
OKLab	oklab(63.33% -0.0086 -0.1923)
OKLCH	oklch(63.33% 0.192 267.4)
XYZ	xyz(29.2434, 24.2941, 96.0576)
Luminance	0.2430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FFD #FDD557

analogous

#57D2FD #577FFD #8257FD

triadic

#577FFD #FD577F #7FFD57

tetradic

#577FFD #FD57D2 #FDD557 #57FD82

square

#577FFD #FD57D2 #FDD557 #57FD82

split-complementary

#577FFD #FD8257 #D2FD57

monochromatic

#0336D7 #1B51FC #577FFD #93ADFE #D0DBFE

Accessibility & contrast

On white

3.58

#577FFD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.86

#577FFD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FFD

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FFD	#FFFFFF	#000000	##000000
##577FFD	1.00	3.58	5.86	5.86
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.86	21.00	1.00	1.00
##000000	5.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#368FFF

Deuteranopia (green-blind)

#0080FA

Tritanopia (blue-blind)

#009DB2

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #577ffd;
/* rgb */ color: rgb(87, 127, 253);
/* oklch */ color: oklch(63.3% 0.192 267.4);

Tailwind

colors: {
  custom: {
    50: '#97a3ff',
    500: '#577ffd',
    950: '#000000',
  },
}

SCSS

$custom: #577ffd;
$custom-light: #97a3ff;
$custom-dark: #000000;

JSON

{
  "hex": "#577ffd",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 253
  },
  "hsl": {
    "h": 225.542,
    "s": 97.647,
    "l": 66.667
  },
  "oklch": {
    "l": 0.63326,
    "c": 0.19248,
    "h": 267.4
  },
  "luminance": 0.24297
}

Semantic roles & 50–950 ramp

primary

#577FFD

secondary

#F3E6BD

accent

#AE00E6

background

#FAFAFF

surface

#F3F3FF

border

#CDCDD7

text

#0F0F18

muted

#7F7F86

Preview Lab

Preview with #577FFD

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

Preview Lab → · Contrast checker → · Palette generator →