#537BE1#537BE1

#537BE1 is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.5% C 0.161 H 265.7°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#537BE1
RGB	rgb(83, 123, 225)
HSL	hsl(223, 70%, 60%)
HSV	hsv(223, 63%, 88%)
CMYK	cmyk(63.1%, 45.3%, 0%, 11.8%)
CIE-LAB	lab(53.43, 17.81, -56.20)
CIE-LCH	lch(53.43, 58.96, 287.58°)
OKLab	oklab(60.47% -0.0121 -0.1606)
OKLCH	oklch(60.47% 0.161 265.7)
XYZ	xyz(24.2362, 21.4390, 74.0805)
Luminance	0.2144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BE1 #E1B953

analogous

#53C2E1 #537BE1 #7253E1

triadic

#537BE1 #E1537B #7BE153

tetradic

#537BE1 #E153C2 #E1B953 #53E172

square

#537BE1 #E153C2 #E1B953 #53E172

split-complementary

#537BE1 #E17253 #C2E153

monochromatic

#1C409E #2556D2 #537BE1 #87A3EA #BBCBF3

Accessibility & contrast

On white

3.97

#537BE1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#537BE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BE1

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BE1	#FFFFFF	#000000	##000000
##537BE1	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4987E5

Deuteranopia (green-blind)

#317ADF

Tritanopia (blue-blind)

#0092A3

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #537be1;
/* rgb */ color: rgb(83, 123, 225);
/* oklch */ color: oklch(60.5% 0.161 265.7);

Tailwind

colors: {
  custom: {
    50: '#90a0eb',
    500: '#537be1',
    950: '#000000',
  },
}

SCSS

$custom: #537be1;
$custom-light: #90a0eb;
$custom-dark: #000000;

JSON

{
  "hex": "#537be1",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 225
  },
  "hsl": {
    "h": 223.099,
    "s": 70.297,
    "l": 60.392
  },
  "oklch": {
    "l": 0.60471,
    "c": 0.16105,
    "h": 265.7
  },
  "luminance": 0.21441
}

Semantic roles & 50–950 ramp

primary

#537BE1

secondary

#E3D4AD

accent

#9C13D2

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #537BE1

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

Preview Lab → · Contrast checker → · Palette generator →