#577FF7#577FF7

#577FF7 is a light, vivid blue. Relative luminance 0.239; OKLCH L 62.9% C 0.185 H 267.1°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#577FF7
RGB	rgb(87, 127, 247)
HSL	hsl(225, 91%, 65%)
HSV	hsv(225, 65%, 97%)
CMYK	cmyk(64.8%, 48.6%, 0%, 3.1%)
CIE-LAB	lab(56.01, 23.52, -64.31)
CIE-LCH	lch(56.01, 68.48, 290.09°)
OKLab	oklab(62.92% -0.0093 -0.1843)
OKLCH	oklch(62.92% 0.185 267.1)
XYZ	xyz(28.3026, 23.9177, 91.1027)
Luminance	0.2392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FF7 #F7CF57

analogous

#57CFF7 #577FF7 #7F57F7

triadic

#577FF7 #F7577F #7FF757

tetradic

#577FF7 #F757CF #F7CF57 #57F77F

square

#577FF7 #F757CF #F7CF57 #57F77F

split-complementary

#577FF7 #F77F57 #CFF757

monochromatic

#0A3ACA #1D52F4 #577FF7 #91ACFA #CCD8FD

Accessibility & contrast

On white

3.63

#577FF7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#577FF7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FF7

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FF7	#FFFFFF	#000000	##000000
##577FF7	1.00	3.63	5.78	5.78
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.78	21.00	1.00	1.00
##000000	5.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D8EFB

Deuteranopia (green-blind)

#117FF5

Tritanopia (blue-blind)

#009BAF

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #577ff7;
/* rgb */ color: rgb(87, 127, 247);
/* oklch */ color: oklch(62.9% 0.185 267.1);

Tailwind

colors: {
  custom: {
    50: '#96a3fa',
    500: '#577ff7',
    950: '#000000',
  },
}

SCSS

$custom: #577ff7;
$custom-light: #96a3fa;
$custom-dark: #000000;

JSON

{
  "hex": "#577ff7",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 247
  },
  "hsl": {
    "h": 225,
    "s": 90.909,
    "l": 65.49
  },
  "oklch": {
    "l": 0.6292,
    "c": 0.18455,
    "h": 267.1
  },
  "luminance": 0.2392
}

Semantic roles & 50–950 ramp

primary

#577FF7

secondary

#F0E2BA

accent

#AC00E6

background

#F9FAFF

surface

#F2F3FF

border

#CCCDD7

text

#0F0F17

muted

#7E7F85

Preview Lab

Preview with #577FF7

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

Preview Lab → · Contrast checker → · Palette generator →