#5766EB#5766EB

#5766EB is a mid, vivid blue. Relative luminance 0.175; OKLCH L 57.3% C 0.199 H 273.5°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#5766EB
RGB	rgb(87, 102, 235)
HSL	hsl(234, 79%, 63%)
HSV	hsv(234, 63%, 92%)
CMYK	cmyk(63%, 56.6%, 0%, 7.8%)
CIE-LAB	lab(48.91, 34.78, -69.09)
CIE-LCH	lch(48.91, 77.35, 296.72°)
OKLab	oklab(57.33% 0.0121 -0.1987)
OKLCH	oklch(57.33% 0.199 273.5)
XYZ	xyz(23.6723, 17.5251, 80.7164)
Luminance	0.1753 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5766EB #EBDC57

analogous

#57B0EB #5766EB #9257EB

triadic

#5766EB #EB5766 #66EB57

tetradic

#5766EB #EB57B0 #EBDC57 #57EB92

square

#5766EB #EB57B0 #EBDC57 #57EB92

split-complementary

#5766EB #EB9257 #B0EB57

monochromatic

#1525B2 #2034E4 #5766EB #8E98F2 #C4CAF8

Accessibility & contrast

On white

4.66

#5766EB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#5766EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #5766EB

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5766EB	#FFFFFF	#000000	##FFFFFF
##5766EB	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007BEF

Deuteranopia (green-blind)

#006EE8

Tritanopia (blue-blind)

#00869F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #5766eb;
/* rgb */ color: rgb(87, 102, 235);
/* oklch */ color: oklch(57.3% 0.199 273.5);

Tailwind

colors: {
  custom: {
    50: '#9591f2',
    500: '#5766eb',
    950: '#000000',
  },
}

SCSS

$custom: #5766eb;
$custom-light: #9591f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5766eb",
  "rgb": {
    "r": 87,
    "g": 102,
    "b": 235
  },
  "hsl": {
    "h": 233.919,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.57326,
    "c": 0.19904,
    "h": 273.5
  },
  "luminance": 0.17527
}

Semantic roles & 50–950 ramp

primary

#5766EB

secondary

#E9E4B4

accent

#C60ADB

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0F0C17

muted

#7E7D85

Preview Lab

Preview with #5766EB

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

Preview Lab → · Contrast checker → · Palette generator →