#5757CF#5757CF

#5757CF is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.5% C 0.181 H 278.2°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#5757CF
RGB	rgb(87, 87, 207)
HSL	hsl(240, 56%, 58%)
HSV	hsv(240, 58%, 81%)
CMYK	cmyk(58%, 58%, 0%, 18.8%)
CIE-LAB	lab(43.28, 34.76, -62.32)
CIE-LCH	lch(43.28, 71.36, 299.15°)
OKLab	oklab(52.51% 0.0257 -0.1789)
OKLCH	oklch(52.51% 0.181 278.2)
XYZ	xyz(18.5976, 13.3463, 60.6155)
Luminance	0.1335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5757CF #CFCF57

analogous

#5793CF #5757CF #9357CF

triadic

#5757CF #CF5757 #57CF57

tetradic

#5757CF #CF5793 #CFCF57 #57CF93

square

#5757CF #CF5793 #CFCF57 #57CF93

split-complementary

#5757CF #CF9357 #93CF57

monochromatic

#262685 #3434B5 #5757CF #8787DD #B6B6EA

Accessibility & contrast

On white

5.72

#5757CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#5757CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5757CF

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5757CF	#FFFFFF	#000000	##FFFFFF
##5757CF	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD3

Deuteranopia (green-blind)

#0061CD

Tritanopia (blue-blind)

#03748A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #5757cf;
/* rgb */ color: rgb(87, 87, 207);
/* oklch */ color: oklch(52.5% 0.181 278.2);

Tailwind

colors: {
  custom: {
    50: '#9186de',
    500: '#5757cf',
    950: '#000000',
  },
}

SCSS

$custom: #5757cf;
$custom-light: #9186de;
$custom-dark: #000000;

JSON

{
  "hex": "#5757cf",
  "rgb": {
    "r": 87,
    "g": 87,
    "b": 207
  },
  "hsl": {
    "h": 240,
    "s": 55.556,
    "l": 57.647
  },
  "oklch": {
    "l": 0.52507,
    "c": 0.18074,
    "h": 278.2
  },
  "luminance": 0.13348
}

Semantic roles & 50–950 ramp

primary

#5757CF

secondary

#D9D9A9

accent

#DF49DF

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #5757CF

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

Preview Lab → · Contrast checker → · Palette generator →