#537BDB#537BDB

#537BDB is a mid, vivid blue. Relative luminance 0.211; OKLCH L 60.1% C 0.153 H 265.1°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#537BDB
RGB	rgb(83, 123, 219)
HSL	hsl(222, 65%, 59%)
HSV	hsv(222, 62%, 86%)
CMYK	cmyk(62.1%, 43.8%, 0%, 14.1%)
CIE-LAB	lab(53.08, 15.77, -53.39)
CIE-LCH	lch(53.08, 55.67, 286.45°)
OKLab	oklab(60.09% -0.013 -0.1523)
OKLCH	oklch(60.09% 0.153 265.1)
XYZ	xyz(23.4320, 21.1173, 69.8453)
Luminance	0.2112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BDB #DBB353

analogous

#53BFDB #537BDB #6F53DB

triadic

#537BDB #DB537B #7BDB53

tetradic

#537BDB #DB53BF #DBB353 #53DB6F

square

#537BDB #DB53BF #DBB353 #53DB6F

split-complementary

#537BDB #DB6F53 #BFDB53

monochromatic

#1F4295 #2A58C7 #537BDB #86A2E6 #B8C9F0

Accessibility & contrast

On white

4.02

#537BDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#537BDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BDB

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BDB	#FFFFFF	#000000	##000000
##537BDB	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E85DF

Deuteranopia (green-blind)

#3979D9

Tritanopia (blue-blind)

#0091A0

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537bdb;
/* rgb */ color: rgb(83, 123, 219);
/* oklch */ color: oklch(60.1% 0.153 265.1);

Tailwind

colors: {
  custom: {
    50: '#8fa0e7',
    500: '#537bdb',
    950: '#000000',
  },
}

SCSS

$custom: #537bdb;
$custom-light: #8fa0e7;
$custom-dark: #000000;

JSON

{
  "hex": "#537bdb",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 219
  },
  "hsl": {
    "h": 222.353,
    "s": 65.385,
    "l": 59.216
  },
  "oklch": {
    "l": 0.60091,
    "c": 0.15289,
    "h": 265.1
  },
  "luminance": 0.21119
}

Semantic roles & 50–950 ramp

primary

#537BDB

secondary

#DFD0AA

accent

#B73FE8

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #537BDB

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

Preview Lab → · Contrast checker → · Palette generator →