#5357BB#5357BB

#5357BB is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.7% C 0.154 H 277.6°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#5357BB
RGB	rgb(83, 87, 187)
HSL	hsl(238, 43%, 53%)
HSV	hsv(238, 56%, 73%)
CMYK	cmyk(55.6%, 53.5%, 0%, 26.7%)
CIE-LAB	lab(41.60, 27.48, -53.46)
CIE-LCH	lch(41.60, 60.11, 297.20°)
OKLab	oklab(50.74% 0.0205 -0.1529)
OKLCH	oklch(50.74% 0.154 277.6)
XYZ	xyz(15.9423, 12.2422, 48.5270)
Luminance	0.1224 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5357BB #BBB753

analogous

#538BBB #5357BB #8353BB

triadic

#5357BB #BB5357 #57BB53

tetradic

#5357BB #BB538B #BBB753 #53BB83

square

#5357BB #BB538B #BBB753 #53BB83

split-complementary

#5357BB #BB8353 #8BBB53

monochromatic

#2A2C6A #3B3F96 #5357BB #7F82CC #ABADDE

Accessibility & contrast

On white

6.09

#5357BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#5357BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5357BB

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5357BB	#FFFFFF	#000000	##FFFFFF
##5357BB	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C66BE

Deuteranopia (green-blind)

#025EB9

Tritanopia (blue-blind)

#1D6E80

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #5357bb;
/* rgb */ color: rgb(83, 87, 187);
/* oklch */ color: oklch(50.7% 0.154 277.6);

Tailwind

colors: {
  custom: {
    50: '#8c86d0',
    500: '#5357bb',
    950: '#000000',
  },
}

SCSS

$custom: #5357bb;
$custom-light: #8c86d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5357bb",
  "rgb": {
    "r": 83,
    "g": 87,
    "b": 187
  },
  "hsl": {
    "h": 237.692,
    "s": 43.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.50738,
    "c": 0.15432,
    "h": 277.6
  },
  "luminance": 0.12243
}

Semantic roles & 50–950 ramp

primary

#5357BB

secondary

#CBCA9E

accent

#CE55D3

background

#F9F8FC

surface

#F1EFF9

border

#CBCAD2

text

#0D0B14

muted

#7E7C82

Preview Lab

Preview with #5357BB

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

Preview Lab → · Contrast checker → · Palette generator →