#537CEE#537CEE

#537CEE is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.5% C 0.177 H 266.4°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX#537CEE
RGBrgb(83, 124, 238)
HSLhsl(224, 82%, 63%)
HSVhsv(224, 65%, 93%)
CMYKcmyk(65.1%, 47.9%, 0%, 6.7%)
CIE-LABlab(54.48, 21.64, -61.79)
CIE-LCHlch(54.48, 65.47, 289.30°)
OKLaboklab(61.52% -0.0112 -0.177)
OKLCHoklch(61.52% 0.177 266.4)
XYZxyz(26.2022, 22.4249, 83.8199)
Luminance0.2243 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#537CEE #EEC553
analogous
#53CAEE #537CEE #7753EE
triadic
#537CEE #EE537C #7CEE53
tetradic
#537CEE #EE53CA #EEC553 #53EE77
square
#537CEE #EE53CA #EEC553 #53EE77
split-complementary
#537CEE #EE7753 #CAEE53
monochromatic
#123DB5 #1B52E8 #537CEE #8BA6F4 #C2D1F9

Accessibility & contrast

On white

3.83
#537CEE on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.49
#537CEE on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CEE
5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##537CEE#FFFFFF#000000##000000
##537CEE1.003.835.495.49
#FFFFFF3.831.0021.0021.00
#0000005.4921.001.001.00
##0000005.4921.001.001.00

Color blindness preview

Protanopia (red-blind)
#3F8AF2
Deuteranopia (green-blind)
#1A7CEC
Tritanopia (blue-blind)
#0096AA
Achromatopsia (no color)
#828282

Design tokens & code

CSS
--color: #537cee;
/* rgb */ color: rgb(83, 124, 238);
/* oklch */ color: oklch(61.5% 0.177 266.4);
Tailwind
colors: {
  custom: {
    50: '#92a1f4',
    500: '#537cee',
    950: '#000000',
  },
}
SCSS
$custom: #537cee;
$custom-light: #92a1f4;
$custom-dark: #000000;
JSON
{
  "hex": "#537cee",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 238
  },
  "hsl": {
    "h": 224.129,
    "s": 82.011,
    "l": 62.941
  },
  "oklch": {
    "l": 0.61524,
    "c": 0.17737,
    "h": 266.4
  },
  "luminance": 0.22427
}

Semantic roles & 50–950 ramp

primary
#537CEE
secondary
#EADCB2
accent
#A507DE
background
#F9F9FF
surface
#F2F2FE
border
#CCCCD6
text
#0E0E17
muted
#7E7E85

Preview Lab

Preview with #537CEE

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

Preview Lab → · Contrast checker → · Palette generator →

#537CEE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva