#577EFF#577EFF

#577EFF is a light, vivid blue. Relative luminance 0.242; OKLCH L 63.3% C 0.196 H 267.8°. Best body text is #000000 at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#577EFF
RGB	rgb(87, 126, 255)
HSL	hsl(226, 100%, 67%)
HSV	hsv(226, 66%, 100%)
CMYK	cmyk(65.9%, 50.6%, 0%, 0%)
CIE-LAB	lab(56.25, 26.85, -68.33)
CIE-LCH	lch(56.25, 73.42, 291.45°)
OKLab	oklab(63.27% -0.0076 -0.1962)
OKLCH	oklch(63.27% 0.196 267.8)
XYZ	xyz(29.4351, 24.1651, 97.7015)
Luminance	0.2417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EFF #FFD857

analogous

#57D2FF #577EFF #8457FF

triadic

#577EFF #FF577E #7EFF57

tetradic

#577EFF #FF57D2 #FFD857 #57FF84

square

#577EFF #FF57D2 #FFD857 #57FF84

split-complementary

#577EFF #FF8457 #D2FF57

monochromatic

#0033DC #1A4FFF #577EFF #94ADFF #D1DCFF

Accessibility & contrast

On white

3.60

#577EFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.83

#577EFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EFF

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EFF	#FFFFFF	#000000	##000000
##577EFF	1.00	3.60	5.83	5.83
#FFFFFF	3.60	1.00	21.00	21.00
#000000	5.83	21.00	1.00	1.00
##000000	5.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#308FFF

Deuteranopia (green-blind)

#0080FC

Tritanopia (blue-blind)

#009CB3

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #577eff;
/* rgb */ color: rgb(87, 126, 255);
/* oklch */ color: oklch(63.3% 0.196 267.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#577eff",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 255
  },
  "hsl": {
    "h": 226.071,
    "s": 100,
    "l": 67.059
  },
  "oklch": {
    "l": 0.63269,
    "c": 0.19631,
    "h": 267.8
  },
  "luminance": 0.24168
}

Semantic roles & 50–950 ramp

primary

#577EFF

secondary

#F4E7BE

accent

#B000E6

background

#FAF9FF

surface

#F3F2FF

border

#CDCCD7

text

#0F0F18

muted

#7F7E86

Preview Lab

Preview with #577EFF

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

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