#537CE9#537CE9

#537CE9 is a mid, vivid blue. Relative luminance 0.221; OKLCH L 61.2% C 0.171 H 266.0°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#537CE9
RGB	rgb(83, 124, 233)
HSL	hsl(224, 77%, 62%)
HSV	hsv(224, 64%, 91%)
CMYK	cmyk(64.4%, 46.8%, 0%, 8.6%)
CIE-LAB	lab(54.17, 19.93, -59.49)
CIE-LCH	lch(54.17, 62.74, 288.52°)
OKLab	oklab(61.19% -0.0118 -0.1703)
OKLCH	oklch(61.19% 0.171 266)
XYZ	xyz(25.4778, 22.1351, 80.0048)
Luminance	0.2214 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CE9 #E9C053

analogous

#53C7E9 #537CE9 #7553E9

triadic

#537CE9 #E9537C #7CE953

tetradic

#537CE9 #E953C7 #E9C053 #53E975

square

#537CE9 #E953C7 #E9C053 #53E975

split-complementary

#537CE9 #E97553 #C7E953

monochromatic

#163FAC #1D53E2 #537CE9 #89A5F0 #C0CFF7

Accessibility & contrast

On white

3.87

#537CE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#537CE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CE9

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CE9	#FFFFFF	#000000	##000000
##537CE9	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4489ED

Deuteranopia (green-blind)

#267BE7

Tritanopia (blue-blind)

#0095A7

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #537ce9;
/* rgb */ color: rgb(83, 124, 233);
/* oklch */ color: oklch(61.2% 0.171 266.0);

Tailwind

colors: {
  custom: {
    50: '#92a1f1',
    500: '#537ce9',
    950: '#000000',
  },
}

SCSS

$custom: #537ce9;
$custom-light: #92a1f1;
$custom-dark: #000000;

JSON

{
  "hex": "#537ce9",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 233
  },
  "hsl": {
    "h": 223.6,
    "s": 77.32,
    "l": 61.961
  },
  "oklch": {
    "l": 0.61194,
    "c": 0.17066,
    "h": 266
  },
  "luminance": 0.22137
}

Semantic roles & 50–950 ramp

primary

#537CE9

secondary

#E8D8B0

accent

#A10CDA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #537CE9

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

Preview Lab → · Contrast checker → · Palette generator →