#537FDE#537FDE

#537FDE is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.1% C 0.152 H 263.8°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#537FDE
RGB	rgb(83, 127, 222)
HSL	hsl(221, 68%, 60%)
HSV	hsv(221, 63%, 87%)
CMYK	cmyk(62.6%, 42.8%, 0%, 12.9%)
CIE-LAB	lab(54.33, 14.34, -53.07)
CIE-LCH	lch(54.33, 54.97, 285.12°)
OKLab	oklab(61.11% -0.0165 -0.1513)
OKLCH	oklch(61.11% 0.152 263.8)
XYZ	xyz(24.3369, 22.2895, 72.1128)
Luminance	0.2229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FDE #DEB253

analogous

#53C5DE #537FDE #6C53DE

triadic

#537FDE #DE537F #7FDE53

tetradic

#537FDE #DE53C5 #DEB253 #53DE6C

square

#537FDE #DE53C5 #DEB253 #53DE6C

split-complementary

#537FDE #DE6C53 #C5DE53

monochromatic

#1D4599 #275CCD #537FDE #86A5E8 #BACBF2

Accessibility & contrast

On white

3.85

#537FDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#537FDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FDE

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FDE	#FFFFFF	#000000	##000000
##537FDE	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5389E2

Deuteranopia (green-blind)

#3E7CDC

Tritanopia (blue-blind)

#0095A4

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #537fde;
/* rgb */ color: rgb(83, 127, 222);
/* oklch */ color: oklch(61.1% 0.152 263.8);

Tailwind

colors: {
  custom: {
    50: '#90a3e9',
    500: '#537fde',
    950: '#000000',
  },
}

SCSS

$custom: #537fde;
$custom-light: #90a3e9;
$custom-dark: #000000;

JSON

{
  "hex": "#537fde",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 222
  },
  "hsl": {
    "h": 221.007,
    "s": 67.805,
    "l": 59.804
  },
  "oklch": {
    "l": 0.61111,
    "c": 0.15224,
    "h": 263.8
  },
  "luminance": 0.22292
}

Semantic roles & 50–950 ramp

primary

#537FDE

secondary

#E1D0AC

accent

#B43DEB

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #537FDE

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

Preview Lab → · Contrast checker → · Palette generator →