#537FC8#537FC8

#537FC8 is a mid, vivid blue. Relative luminance 0.212; OKLCH L 59.8% C 0.122 H 260.0°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#537FC8
RGB	rgb(83, 127, 200)
HSL	hsl(217, 52%, 55%)
HSV	hsv(217, 59%, 78%)
CMYK	cmyk(58.5%, 36.5%, 0%, 21.6%)
CIE-LAB	lab(53.15, 6.95, -42.51)
CIE-LCH	lch(53.15, 43.07, 279.29°)
OKLab	oklab(59.81% -0.0211 -0.1204)
OKLCH	oklch(59.81% 0.122 260)
XYZ	xyz(21.5783, 21.1860, 57.5846)
Luminance	0.2119 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FC8 #C89C53

analogous

#53B9C8 #537FC8 #6153C8

triadic

#537FC8 #C8537F #7FC853

tetradic

#537FC8 #C853B9 #C89C53 #53C861

square

#537FC8 #C853B9 #C89C53 #53C861

split-complementary

#537FC8 #C86153 #B9C853

monochromatic

#27467A #3661A8 #537FC8 #81A2D7 #B0C4E6

Accessibility & contrast

On white

4.01

#537FC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#537FC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FC8

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FC8	#FFFFFF	#000000	##000000
##537FC8	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6085CB

Deuteranopia (green-blind)

#517AC6

Tritanopia (blue-blind)

#008F9A

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537fc8;
/* rgb */ color: rgb(83, 127, 200);
/* oklch */ color: oklch(59.8% 0.122 260.0);

Tailwind

colors: {
  custom: {
    50: '#8ca3d9',
    500: '#537fc8',
    950: '#000000',
  },
}

SCSS

$custom: #537fc8;
$custom-light: #8ca3d9;
$custom-dark: #000000;

JSON

{
  "hex": "#537fc8",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 200
  },
  "hsl": {
    "h": 217.436,
    "s": 51.542,
    "l": 55.49
  },
  "oklch": {
    "l": 0.59814,
    "c": 0.12225,
    "h": 260
  },
  "luminance": 0.21188
}

Semantic roles & 50–950 ramp

primary

#537FC8

secondary

#D4C1A3

accent

#A64DDB

background

#F9FAFD

surface

#F1F3FA

border

#CBCDD3

text

#0D0F14

muted

#7E7F83

Preview Lab

Preview with #537FC8

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

Preview Lab → · Contrast checker → · Palette generator →