#577FF0#577FF0

#577FF0 is a light, vivid blue. Relative luminance 0.235; OKLCH L 62.5% C 0.175 H 266.7°. Best body text is #000000 at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#577FF0
RGB	rgb(87, 127, 240)
HSL	hsl(224, 84%, 64%)
HSV	hsv(224, 64%, 94%)
CMYK	cmyk(63.7%, 47.1%, 0%, 5.9%)
CIE-LAB	lab(55.58, 21.14, -61.12)
CIE-LCH	lch(55.58, 64.67, 289.08°)
OKLab	oklab(62.46% -0.0102 -0.1749)
OKLCH	oklch(62.46% 0.175 266.7)
XYZ	xyz(27.2426, 23.4938, 85.5203)
Luminance	0.2350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FF0 #F0C857

analogous

#57CCF0 #577FF0 #7C57F0

triadic

#577FF0 #F0577F #7FF057

tetradic

#577FF0 #F057CC #F0C857 #57F07C

square

#577FF0 #F057CC #F0C857 #57F07C

split-complementary

#577FF0 #F07C57 #CCF057

monochromatic

#113DBC #1F54EB #577FF0 #8FAAF5 #C7D5FA

Accessibility & contrast

On white

3.68

#577FF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.70

#577FF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FF0

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FF0	#FFFFFF	#000000	##000000
##577FF0	1.00	3.68	5.70	5.70
#FFFFFF	3.68	1.00	21.00	21.00
#000000	5.70	21.00	1.00	1.00
##000000	5.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#458CF4

Deuteranopia (green-blind)

#267FEE

Tritanopia (blue-blind)

#0099AC

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #577ff0;
/* rgb */ color: rgb(87, 127, 240);
/* oklch */ color: oklch(62.5% 0.175 266.7);

Tailwind

colors: {
  custom: {
    50: '#94a3f6',
    500: '#577ff0',
    950: '#000000',
  },
}

SCSS

$custom: #577ff0;
$custom-light: #94a3f6;
$custom-dark: #000000;

JSON

{
  "hex": "#577ff0",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 240
  },
  "hsl": {
    "h": 224.314,
    "s": 83.607,
    "l": 64.118
  },
  "oklch": {
    "l": 0.62457,
    "c": 0.17522,
    "h": 266.7
  },
  "luminance": 0.23496
}

Semantic roles & 50–950 ramp

primary

#577FF0

secondary

#ECDEB7

accent

#A705E0

background

#F9FAFF

surface

#F2F3FE

border

#CCCDD6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #577FF0

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

Preview Lab → · Contrast checker → · Palette generator →