#537CE1#537CE1

#537CE1 is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.7% C 0.160 H 265.3°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#537CE1
RGB	rgb(83, 124, 225)
HSL	hsl(223, 70%, 60%)
HSV	hsv(223, 63%, 88%)
CMYK	cmyk(63.1%, 44.9%, 0%, 11.8%)
CIE-LAB	lab(53.69, 17.20, -55.77)
CIE-LCH	lch(53.69, 58.37, 287.14°)
OKLab	oklab(60.68% -0.013 -0.1593)
OKLCH	oklch(60.68% 0.16 265.3)
XYZ	xyz(24.3608, 21.6883, 74.1220)
Luminance	0.2169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CE1 #E1B853

analogous

#53C3E1 #537CE1 #7153E1

triadic

#537CE1 #E1537C #7CE153

tetradic

#537CE1 #E153C3 #E1B853 #53E171

square

#537CE1 #E153C3 #E1B853 #53E171

split-complementary

#537CE1 #E17153 #C3E153

monochromatic

#1C419E #2557D2 #537CE1 #87A4EA #BBCBF3

Accessibility & contrast

On white

3.93

#537CE1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#537CE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CE1

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CE1	#FFFFFF	#000000	##000000
##537CE1	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B87E5

Deuteranopia (green-blind)

#337ADF

Tritanopia (blue-blind)

#0093A3

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #537ce1;
/* rgb */ color: rgb(83, 124, 225);
/* oklch */ color: oklch(60.7% 0.160 265.3);

Tailwind

colors: {
  custom: {
    50: '#90a1eb',
    500: '#537ce1',
    950: '#000000',
  },
}

SCSS

$custom: #537ce1;
$custom-light: #90a1eb;
$custom-dark: #000000;

JSON

{
  "hex": "#537ce1",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 225
  },
  "hsl": {
    "h": 222.676,
    "s": 70.297,
    "l": 60.392
  },
  "oklch": {
    "l": 0.60677,
    "c": 0.15986,
    "h": 265.3
  },
  "luminance": 0.21691
}

Semantic roles & 50–950 ramp

primary

#537CE1

secondary

#E3D3AD

accent

#9B13D2

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #537CE1

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

Preview Lab → · Contrast checker → · Palette generator →