#5757B8#5757B8

#5757B8 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.8% C 0.149 H 279.7°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#5757B8
RGB	rgb(87, 87, 184)
HSL	hsl(240, 41%, 53%)
HSV	hsv(240, 53%, 72%)
CMYK	cmyk(52.7%, 52.7%, 0%, 27.8%)
CIE-LAB	lab(41.69, 27.33, -51.54)
CIE-LCH	lch(41.69, 58.34, 297.94°)
OKLab	oklab(50.82% 0.0251 -0.1472)
OKLCH	oklch(50.82% 0.149 279.7)
XYZ	xyz(15.9877, 12.3024, 46.8702)
Luminance	0.1230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5757B8 #B8B857

analogous

#5787B8 #5757B8 #8757B8

triadic

#5757B8 #B85757 #57B857

tetradic

#5757B8 #B85787 #B8B857 #57B887

square

#5757B8 #B85787 #B8B857 #57B887

split-complementary

#5757B8 #B88757 #87B857

monochromatic

#2C2C68 #3E3E93 #5757B8 #8282CA #ADADDC

Accessibility & contrast

On white

6.07

#5757B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#5757B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5757B8

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5757B8	#FFFFFF	#000000	##FFFFFF
##5757B8	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2366BB

Deuteranopia (green-blind)

#165FB6

Tritanopia (blue-blind)

#2D6D7F

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #5757b8;
/* rgb */ color: rgb(87, 87, 184);
/* oklch */ color: oklch(50.8% 0.149 279.7);

Tailwind

colors: {
  custom: {
    50: '#8e86ce',
    500: '#5757b8',
    950: '#000000',
  },
}

SCSS

$custom: #5757b8;
$custom-light: #8e86ce;
$custom-dark: #000000;

JSON

{
  "hex": "#5757b8",
  "rgb": {
    "r": 87,
    "g": 87,
    "b": 184
  },
  "hsl": {
    "h": 240,
    "s": 40.586,
    "l": 53.137
  },
  "oklch": {
    "l": 0.5082,
    "c": 0.14931,
    "h": 279.7
  },
  "luminance": 0.12303
}

Semantic roles & 50–950 ramp

primary

#5757B8

secondary

#CACAA0

accent

#D057D0

background

#F9F8FC

surface

#F1EFF9

border

#CBCAD2

text

#0D0B14

muted

#7E7C82

Preview Lab

Preview with #5757B8

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

Preview Lab → · Contrast checker → · Palette generator →