#577FFF#577FFF

#577FFF is a light, vivid blue. Relative luminance 0.244; OKLCH L 63.5% C 0.195 H 267.5°. Best body text is #000000 at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#577FFF
RGB	rgb(87, 127, 255)
HSL	hsl(226, 100%, 67%)
HSV	hsv(226, 66%, 100%)
CMYK	cmyk(65.9%, 50.2%, 0%, 0%)
CIE-LAB	lab(56.51, 26.24, -67.92)
CIE-LCH	lch(56.51, 72.81, 291.12°)
OKLab	oklab(63.46% -0.0084 -0.1949)
OKLCH	oklch(63.46% 0.195 267.5)
XYZ	xyz(29.5636, 24.4222, 97.7443)
Luminance	0.2442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FFF #FFD757

analogous

#57D3FF #577FFF #8357FF

triadic

#577FFF #FF577F #7FFF57

tetradic

#577FFF #FF57D3 #FFD757 #57FF83

square

#577FFF #FF57D3 #FFD757 #57FF83

split-complementary

#577FFF #FF8357 #D3FF57

monochromatic

#0034DC #1A50FF #577FFF #94AEFF #D1DCFF

Accessibility & contrast

On white

3.57

#577FFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.89

#577FFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FFF

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FFF	#FFFFFF	#000000	##000000
##577FFF	1.00	3.57	5.89	5.89
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.89	21.00	1.00	1.00
##000000	5.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3390FF

Deuteranopia (green-blind)

#0080FC

Tritanopia (blue-blind)

#009DB3

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #577fff;
/* rgb */ color: rgb(87, 127, 255);
/* oklch */ color: oklch(63.5% 0.195 267.5);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#577fff",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 255
  },
  "hsl": {
    "h": 225.714,
    "s": 100,
    "l": 67.059
  },
  "oklch": {
    "l": 0.63463,
    "c": 0.19511,
    "h": 267.5
  },
  "luminance": 0.24425
}

Semantic roles & 50–950 ramp

primary

#577FFF

secondary

#F4E7BE

accent

#AF00E6

background

#FAFAFF

surface

#F3F3FF

border

#CDCDD7

text

#0F0F18

muted

#7F7F86

Preview Lab

Preview with #577FFF

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

Preview Lab → · Contrast checker → · Palette generator →