#537BC8#537BC8

#537BC8 is a mid, vivid blue. Relative luminance 0.202; OKLCH L 58.9% C 0.127 H 262.4°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#537BC8
RGB	rgb(83, 123, 200)
HSL	hsl(219, 52%, 55%)
HSV	hsv(219, 59%, 78%)
CMYK	cmyk(58.5%, 38.5%, 0%, 21.6%)
CIE-LAB	lab(52.03, 9.37, -44.28)
CIE-LCH	lch(52.03, 45.26, 281.95°)
OKLab	oklab(58.95% -0.0168 -0.1256)
OKLCH	oklch(58.95% 0.127 262.4)
XYZ	xyz(21.0720, 20.1733, 57.4158)
Luminance	0.2018 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BC8 #C8A053

analogous

#53B6C8 #537BC8 #6553C8

triadic

#537BC8 #C8537B #7BC853

tetradic

#537BC8 #C853B6 #C8A053 #53C865

square

#537BC8 #C853B6 #C8A053 #53C865

split-complementary

#537BC8 #C86553 #B6C853

monochromatic

#27437A #365DA8 #537BC8 #819FD7 #B0C2E6

Accessibility & contrast

On white

4.17

#537BC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#537BC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BC8

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BC8	#FFFFFF	#000000	##000000
##537BC8	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A82CB

Deuteranopia (green-blind)

#4B77C6

Tritanopia (blue-blind)

#008C98

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #537bc8;
/* rgb */ color: rgb(83, 123, 200);
/* oklch */ color: oklch(58.9% 0.127 262.4);

Tailwind

colors: {
  custom: {
    50: '#8ca0d9',
    500: '#537bc8',
    950: '#000000',
  },
}

SCSS

$custom: #537bc8;
$custom-light: #8ca0d9;
$custom-dark: #000000;

JSON

{
  "hex": "#537bc8",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 200
  },
  "hsl": {
    "h": 219.487,
    "s": 51.542,
    "l": 55.49
  },
  "oklch": {
    "l": 0.58945,
    "c": 0.12674,
    "h": 262.4
  },
  "luminance": 0.20175
}

Semantic roles & 50–950 ramp

primary

#537BC8

secondary

#D4C3A3

accent

#AA4DDB

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #537BC8

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

Preview Lab → · Contrast checker → · Palette generator →