#537BC3#537BC3

#537BC3 is a mid, moderate blue. Relative luminance 0.199; OKLCH L 58.7% C 0.120 H 261.4°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#537BC3
RGB	rgb(83, 123, 195)
HSL	hsl(219, 48%, 55%)
HSV	hsv(219, 57%, 76%)
CMYK	cmyk(57.4%, 36.9%, 0%, 23.5%)
CIE-LAB	lab(51.77, 7.71, -41.84)
CIE-LCH	lch(51.77, 42.54, 280.45°)
OKLab	oklab(58.66% -0.0179 -0.1185)
OKLCH	oklch(58.66% 0.12 261.4)
XYZ	xyz(20.4972, 19.9434, 54.3885)
Luminance	0.1994 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BC3 #C39B53

analogous

#53B3C3 #537BC3 #6353C3

triadic

#537BC3 #C3537B #7BC353

tetradic

#537BC3 #C353B3 #C39B53 #53C363

square

#537BC3 #C353B3 #C39B53 #53C363

split-complementary

#537BC3 #C36353 #B3C353

monochromatic

#284373 #385DA1 #537BC3 #809ED3 #AEC1E3

Accessibility & contrast

On white

4.21

#537BC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#537BC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BC3

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BC3	#FFFFFF	#000000	##000000
##537BC3	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D81C6

Deuteranopia (green-blind)

#4F77C1

Tritanopia (blue-blind)

#008B96

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #537bc3;
/* rgb */ color: rgb(83, 123, 195);
/* oklch */ color: oklch(58.7% 0.120 261.4);

Tailwind

colors: {
  custom: {
    50: '#8ca0d5',
    500: '#537bc3',
    950: '#000000',
  },
}

SCSS

$custom: #537bc3;
$custom-light: #8ca0d5;
$custom-dark: #000000;

JSON

{
  "hex": "#537bc3",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 195
  },
  "hsl": {
    "h": 218.571,
    "s": 48.276,
    "l": 54.51
  },
  "oklch": {
    "l": 0.5866,
    "c": 0.11984,
    "h": 261.4
  },
  "luminance": 0.19945
}

Semantic roles & 50–950 ramp

primary

#537BC3

secondary

#D1C0A1

accent

#A750D8

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #537BC3

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

Preview Lab → · Contrast checker → · Palette generator →