#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
RGB	rgb(83, 124, 238)
HSL	hsl(224, 82%, 63%)
HSV	hsv(224, 65%, 93%)
CMYK	cmyk(65.1%, 47.9%, 0%, 6.7%)
CIE-LAB	lab(54.48, 21.64, -61.79)
CIE-LCH	lch(54.48, 65.47, 289.30°)
OKLab	oklab(61.52% -0.0112 -0.177)
OKLCH	oklch(61.52% 0.177 266.4)
XYZ	xyz(26.2022, 22.4249, 83.8199)
Luminance	0.2243 (WCAG relative)
Temperature	cool
Family	blue

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
##537CEE	1.00	3.83	5.49	5.49
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

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 →