#577CFF#577CFF

#577CFF is a light, vivid blue. Relative luminance 0.237; OKLCH L 62.9% C 0.199 H 268.3°. Best body text is #000000 at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#577CFF
RGB	rgb(87, 124, 255)
HSL	hsl(227, 100%, 67%)
HSV	hsv(227, 66%, 100%)
CMYK	cmyk(65.9%, 51.4%, 0%, 0%)
CIE-LAB	lab(55.74, 28.07, -69.15)
CIE-LCH	lch(55.74, 74.63, 292.09°)
OKLab	oklab(62.89% -0.0059 -0.1986)
OKLCH	oklch(62.89% 0.199 268.3)
XYZ	xyz(29.1819, 23.6588, 97.6171)
Luminance	0.2366 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577CFF #FFDA57

analogous

#57D0FF #577CFF #8657FF

triadic

#577CFF #FF577C #7CFF57

tetradic

#577CFF #FF57D0 #FFDA57 #57FF86

square

#577CFF #FF57D0 #FFDA57 #57FF86

split-complementary

#577CFF #FF8657 #D0FF57

monochromatic

#0030DC #1A4CFF #577CFF #94ACFF #D1DBFF

Accessibility & contrast

On white

3.66

#577CFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.73

#577CFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577CFF

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577CFF	#FFFFFF	#000000	##000000
##577CFF	1.00	3.66	5.73	5.73
#FFFFFF	3.66	1.00	21.00	21.00
#000000	5.73	21.00	1.00	1.00
##000000	5.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#298EFF

Deuteranopia (green-blind)

#007EFC

Tritanopia (blue-blind)

#009BB2

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #577cff;
/* rgb */ color: rgb(87, 124, 255);
/* oklch */ color: oklch(62.9% 0.199 268.3);

Tailwind

colors: {
  custom: {
    50: '#97a1ff',
    500: '#577cff',
    950: '#000000',
  },
}

SCSS

$custom: #577cff;
$custom-light: #97a1ff;
$custom-dark: #000000;

JSON

{
  "hex": "#577cff",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 255
  },
  "hsl": {
    "h": 226.786,
    "s": 100,
    "l": 67.059
  },
  "oklch": {
    "l": 0.62885,
    "c": 0.19869,
    "h": 268.3
  },
  "luminance": 0.23662
}

Semantic roles & 50–950 ramp

primary

#577CFF

secondary

#F4E8BE

accent

#B300E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0E18

muted

#7F7E86

Preview Lab

Preview with #577CFF

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

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