#5657CF#5657CF

#5657CF is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.4% C 0.181 H 277.8°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#5657CF
RGB	rgb(86, 87, 207)
HSL	hsl(240, 56%, 57%)
HSV	hsv(240, 58%, 81%)
CMYK	cmyk(58.5%, 58%, 0%, 18.8%)
CIE-LAB	lab(43.21, 34.58, -62.44)
CIE-LCH	lch(43.21, 71.37, 298.98°)
OKLab	oklab(52.44% 0.0245 -0.1793)
OKLCH	oklch(52.44% 0.181 277.8)
XYZ	xyz(18.5048, 13.2985, 60.6111)
Luminance	0.1330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5657CF #CFCE56

analogous

#5694CF #5657CF #9156CF

triadic

#5657CF #CF5657 #57CF56

tetradic

#5657CF #CF5694 #CFCE56 #56CF91

square

#5657CF #CF5694 #CFCE56 #56CF91

split-complementary

#5657CF #CF9156 #94CF56

monochromatic

#262785 #3334B5 #5657CF #8686DD #B5B6EA

Accessibility & contrast

On white

5.74

#5657CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#5657CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5657CF

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5657CF	#FFFFFF	#000000	##FFFFFF
##5657CF	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD3

Deuteranopia (green-blind)

#0061CD

Tritanopia (blue-blind)

#00748A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #5657cf;
/* rgb */ color: rgb(86, 87, 207);
/* oklch */ color: oklch(52.4% 0.181 277.8);

Tailwind

colors: {
  custom: {
    50: '#9186de',
    500: '#5657cf',
    950: '#000000',
  },
}

SCSS

$custom: #5657cf;
$custom-light: #9186de;
$custom-dark: #000000;

JSON

{
  "hex": "#5657cf",
  "rgb": {
    "r": 86,
    "g": 87,
    "b": 207
  },
  "hsl": {
    "h": 239.504,
    "s": 55.76,
    "l": 57.451
  },
  "oklch": {
    "l": 0.52436,
    "c": 0.18095,
    "h": 277.8
  },
  "luminance": 0.133
}

Semantic roles & 50–950 ramp

primary

#5657CF

secondary

#D9D8A8

accent

#DE49DF

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #5657CF

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

Preview Lab → · Contrast checker → · Palette generator →