#537BC4#537BC4

#537BC4 is a mid, vivid blue. Relative luminance 0.200; OKLCH L 58.7% C 0.121 H 261.6°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#537BC4
RGB	rgb(83, 123, 196)
HSL	hsl(219, 49%, 55%)
HSV	hsv(219, 58%, 77%)
CMYK	cmyk(57.7%, 37.2%, 0%, 23.1%)
CIE-LAB	lab(51.82, 8.04, -42.33)
CIE-LCH	lch(51.82, 43.09, 280.76°)
OKLab	oklab(58.72% -0.0177 -0.1199)
OKLCH	oklch(58.72% 0.121 261.6)
XYZ	xyz(20.6106, 19.9887, 54.9859)
Luminance	0.1999 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BC4 #C49C53

analogous

#53B4C4 #537BC4 #6453C4

triadic

#537BC4 #C4537B #7BC453

tetradic

#537BC4 #C453B4 #C49C53 #53C464

square

#537BC4 #C453B4 #C49C53 #53C464

split-complementary

#537BC4 #C46453 #B4C453

monochromatic

#284375 #385DA2 #537BC4 #819ED4 #AEC1E3

Accessibility & contrast

On white

4.20

#537BC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#537BC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BC4

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BC4	#FFFFFF	#000000	##000000
##537BC4	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D81C7

Deuteranopia (green-blind)

#4E77C2

Tritanopia (blue-blind)

#008B96

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #537bc4;
/* rgb */ color: rgb(83, 123, 196);
/* oklch */ color: oklch(58.7% 0.121 261.6);

Tailwind

colors: {
  custom: {
    50: '#8ca0d6',
    500: '#537bc4',
    950: '#000000',
  },
}

SCSS

$custom: #537bc4;
$custom-light: #8ca0d6;
$custom-dark: #000000;

JSON

{
  "hex": "#537bc4",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 196
  },
  "hsl": {
    "h": 218.761,
    "s": 48.918,
    "l": 54.706
  },
  "oklch": {
    "l": 0.58716,
    "c": 0.12122,
    "h": 261.6
  },
  "luminance": 0.1999
}

Semantic roles & 50–950 ramp

primary

#537BC4

secondary

#D1C0A2

accent

#A84FD8

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #537BC4

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

Preview Lab → · Contrast checker → · Palette generator →