#5757CD#5757CD

#5757CD is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.4% C 0.178 H 278.3°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#5757CD
RGB	rgb(87, 87, 205)
HSL	hsl(240, 54%, 57%)
HSV	hsv(240, 58%, 80%)
CMYK	cmyk(57.6%, 57.6%, 0%, 19.6%)
CIE-LAB	lab(43.14, 34.11, -61.40)
CIE-LCH	lch(43.14, 70.24, 299.05°)
OKLab	oklab(52.35% 0.0257 -0.1762)
OKLCH	oklch(52.35% 0.178 278.3)
XYZ	xyz(18.3546, 13.2491, 59.3359)
Luminance	0.1325 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5757CD #CDCD57

analogous

#5792CD #5757CD #9257CD

triadic

#5757CD #CD5757 #57CD57

tetradic

#5757CD #CD5792 #CDCD57 #57CD92

square

#5757CD #CD5792 #CDCD57 #57CD92

split-complementary

#5757CD #CD9257 #92CD57

monochromatic

#272783 #3535B2 #5757CD #8686DB #B5B5E9

Accessibility & contrast

On white

5.75

#5757CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#5757CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5757CD

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5757CD	#FFFFFF	#000000	##FFFFFF
##5757CD	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD1

Deuteranopia (green-blind)

#0061CB

Tritanopia (blue-blind)

#0B7389

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #5757cd;
/* rgb */ color: rgb(87, 87, 205);
/* oklch */ color: oklch(52.4% 0.178 278.3);

Tailwind

colors: {
  custom: {
    50: '#9186dd',
    500: '#5757cd',
    950: '#000000',
  },
}

SCSS

$custom: #5757cd;
$custom-light: #9186dd;
$custom-dark: #000000;

JSON

{
  "hex": "#5757cd",
  "rgb": {
    "r": 87,
    "g": 87,
    "b": 205
  },
  "hsl": {
    "h": 240,
    "s": 54.128,
    "l": 57.255
  },
  "oklch": {
    "l": 0.52354,
    "c": 0.17807,
    "h": 278.3
  },
  "luminance": 0.1325
}

Semantic roles & 50–950 ramp

primary

#5757CD

secondary

#D8D8A8

accent

#DD4ADD

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #5757CD

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

Preview Lab → · Contrast checker → · Palette generator →