#577FF5#577FF5

#577FF5 is a light, vivid blue. Relative luminance 0.238; OKLCH L 62.8% C 0.182 H 267.0°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#577FF5
RGB	rgb(87, 127, 245)
HSL	hsl(225, 89%, 65%)
HSV	hsv(225, 64%, 96%)
CMYK	cmyk(64.5%, 48.2%, 0%, 3.9%)
CIE-LAB	lab(55.88, 22.84, -63.40)
CIE-LCH	lch(55.88, 67.39, 289.81°)
OKLab	oklab(62.79% -0.0095 -0.1816)
OKLCH	oklch(62.79% 0.182 267)
XYZ	xyz(27.9956, 23.7950, 89.4860)
Luminance	0.2380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577FF5 #F5CD57

analogous

#57CEF5 #577FF5 #7E57F5

triadic

#577FF5 #F5577F #7FF557

tetradic

#577FF5 #F557CE #F5CD57 #57F57E

square

#577FF5 #F557CE #F5CD57 #57F57E

split-complementary

#577FF5 #F57E57 #CEF557

monochromatic

#0C3BC6 #1D53F2 #577FF5 #91ABF8 #CBD7FC

Accessibility & contrast

On white

3.65

#577FF5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#577FF5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577FF5

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577FF5	#FFFFFF	#000000	##000000
##577FF5	1.00	3.65	5.76	5.76
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.76	21.00	1.00	1.00
##000000	5.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#408DF9

Deuteranopia (green-blind)

#197FF3

Tritanopia (blue-blind)

#009AAE

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #577ff5;
/* rgb */ color: rgb(87, 127, 245);
/* oklch */ color: oklch(62.8% 0.182 267.0);

Tailwind

colors: {
  custom: {
    50: '#95a3f9',
    500: '#577ff5',
    950: '#000000',
  },
}

SCSS

$custom: #577ff5;
$custom-light: #95a3f9;
$custom-dark: #000000;

JSON

{
  "hex": "#577ff5",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 245
  },
  "hsl": {
    "h": 224.81,
    "s": 88.764,
    "l": 65.098
  },
  "oklch": {
    "l": 0.62787,
    "c": 0.1819,
    "h": 267
  },
  "luminance": 0.23798
}

Semantic roles & 50–950 ramp

primary

#577FF5

secondary

#EFE1B9

accent

#AB00E5

background

#F9FAFF

surface

#F2F3FF

border

#CCCDD7

text

#0F0F17

muted

#7E7F85

Preview Lab

Preview with #577FF5

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

Preview Lab → · Contrast checker → · Palette generator →