#537EDF#537EDF

#537EDF is a mid, vivid blue. Relative luminance 0.221; OKLCH L 61.0% C 0.155 H 264.3°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#537EDF
RGB	rgb(83, 126, 223)
HSL	hsl(222, 69%, 60%)
HSV	hsv(222, 63%, 87%)
CMYK	cmyk(62.8%, 43.5%, 0%, 12.5%)
CIE-LAB	lab(54.12, 15.29, -53.97)
CIE-LCH	lch(54.12, 56.10, 285.82°)
OKLab	oklab(60.97% -0.0153 -0.154)
OKLCH	oklch(60.97% 0.155 264.3)
XYZ	xyz(24.3428, 22.0862, 72.7780)
Luminance	0.2209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537EDF #DFB453

analogous

#53C4DF #537EDF #6E53DF

triadic

#537EDF #DF537E #7EDF53

tetradic

#537EDF #DF53C4 #DFB453 #53DF6E

square

#537EDF #DF53C4 #DFB453 #53DF6E

split-complementary

#537EDF #DF6E53 #C4DF53

monochromatic

#1D449B #265ACE #537EDF #87A5E9 #BACBF2

Accessibility & contrast

On white

3.88

#537EDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#537EDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537EDF

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537EDF	#FFFFFF	#000000	##000000
##537EDF	1.00	3.88	5.42	5.42
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5188E3

Deuteranopia (green-blind)

#3B7BDD

Tritanopia (blue-blind)

#0094A4

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #537edf;
/* rgb */ color: rgb(83, 126, 223);
/* oklch */ color: oklch(61.0% 0.155 264.3);

Tailwind

colors: {
  custom: {
    50: '#90a2e9',
    500: '#537edf',
    950: '#000000',
  },
}

SCSS

$custom: #537edf;
$custom-light: #90a2e9;
$custom-dark: #000000;

JSON

{
  "hex": "#537edf",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 223
  },
  "hsl": {
    "h": 221.571,
    "s": 68.627,
    "l": 60
  },
  "oklch": {
    "l": 0.60965,
    "c": 0.15477,
    "h": 264.3
  },
  "luminance": 0.22088
}

Semantic roles & 50–950 ramp

primary

#537EDF

secondary

#E2D1AC

accent

#B63CEB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #537EDF

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

Preview Lab → · Contrast checker → · Palette generator →