#537CDB#537CDB

#537CDB is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.3% C 0.152 H 264.7°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#537CDB
RGB	rgb(83, 124, 219)
HSL	hsl(222, 65%, 59%)
HSV	hsv(222, 62%, 86%)
CMYK	cmyk(62.1%, 43.4%, 0%, 14.1%)
CIE-LAB	lab(53.35, 15.16, -52.95)
CIE-LCH	lch(53.35, 55.08, 285.97°)
OKLab	oklab(60.3% -0.014 -0.151)
OKLCH	oklch(60.3% 0.152 264.7)
XYZ	xyz(23.5567, 21.3667, 69.8869)
Luminance	0.2137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CDB #DBB253

analogous

#53C0DB #537CDB #6E53DB

triadic

#537CDB #DB537C #7CDB53

tetradic

#537CDB #DB53C0 #DBB253 #53DB6E

square

#537CDB #DB53C0 #DBB253 #53DB6E

split-complementary

#537CDB #DB6E53 #C0DB53

monochromatic

#1F4295 #2A59C7 #537CDB #86A3E6 #B8C9F0

Accessibility & contrast

On white

3.98

#537CDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#537CDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CDB

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CDB	#FFFFFF	#000000	##000000
##537CDB	1.00	3.98	5.27	5.27
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5086DF

Deuteranopia (green-blind)

#3B7AD9

Tritanopia (blue-blind)

#0092A1

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537cdb;
/* rgb */ color: rgb(83, 124, 219);
/* oklch */ color: oklch(60.3% 0.152 264.7);

Tailwind

colors: {
  custom: {
    50: '#8fa1e7',
    500: '#537cdb',
    950: '#000000',
  },
}

SCSS

$custom: #537cdb;
$custom-light: #8fa1e7;
$custom-dark: #000000;

JSON

{
  "hex": "#537cdb",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 219
  },
  "hsl": {
    "h": 221.912,
    "s": 65.385,
    "l": 59.216
  },
  "oklch": {
    "l": 0.60299,
    "c": 0.15169,
    "h": 264.7
  },
  "luminance": 0.21369
}

Semantic roles & 50–950 ramp

primary

#537CDB

secondary

#DFCFAA

accent

#B53FE8

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #537CDB

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

Preview Lab → · Contrast checker → · Palette generator →