#537CEB#537CEB

#537CEB is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.3% C 0.173 H 266.2°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#537CEB
RGB	rgb(83, 124, 235)
HSL	hsl(224, 79%, 62%)
HSV	hsv(224, 65%, 92%)
CMYK	cmyk(64.7%, 47.2%, 0%, 7.8%)
CIE-LAB	lab(54.29, 20.61, -60.41)
CIE-LCH	lch(54.29, 63.83, 288.84°)
OKLab	oklab(61.33% -0.0116 -0.173)
OKLCH	oklch(61.33% 0.173 266.2)
XYZ	xyz(25.7651, 22.2501, 81.5180)
Luminance	0.2225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CEB #EBC253

analogous

#53C8EB #537CEB #7653EB

triadic

#537CEB #EB537C #7CEB53

tetradic

#537CEB #EB53C8 #EBC253 #53EB76

square

#537CEB #EB53C8 #EBC253 #53EB76

split-complementary

#537CEB #EB7653 #C8EB53

monochromatic

#143EAF #1C52E5 #537CEB #8AA6F1 #C1D0F8

Accessibility & contrast

On white

3.85

#537CEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#537CEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CEB

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CEB	#FFFFFF	#000000	##000000
##537CEB	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4289EF

Deuteranopia (green-blind)

#227BE9

Tritanopia (blue-blind)

#0096A8

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #537ceb;
/* rgb */ color: rgb(83, 124, 235);
/* oklch */ color: oklch(61.3% 0.173 266.2);

Tailwind

colors: {
  custom: {
    50: '#92a1f2',
    500: '#537ceb',
    950: '#000000',
  },
}

SCSS

$custom: #537ceb;
$custom-light: #92a1f2;
$custom-dark: #000000;

JSON

{
  "hex": "#537ceb",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 235
  },
  "hsl": {
    "h": 223.816,
    "s": 79.167,
    "l": 62.353
  },
  "oklch": {
    "l": 0.61325,
    "c": 0.17335,
    "h": 266.2
  },
  "luminance": 0.22252
}

Semantic roles & 50–950 ramp

primary

#537CEB

secondary

#E9DAB1

accent

#A30ADB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #537CEB

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

Preview Lab → · Contrast checker → · Palette generator →