#537EE4#537EE4

#537EE4 is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.3% C 0.162 H 264.9°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#537EE4
RGB	rgb(83, 126, 228)
HSL	hsl(222, 73%, 61%)
HSV	hsv(222, 64%, 89%)
CMYK	cmyk(63.6%, 44.7%, 0%, 10.6%)
CIE-LAB	lab(54.41, 17.00, -56.32)
CIE-LCH	lch(54.41, 58.83, 286.79°)
OKLab	oklab(61.28% -0.0145 -0.1609)
OKLCH	oklch(61.28% 0.162 264.9)
XYZ	xyz(25.0269, 22.3598, 76.3807)
Luminance	0.2236 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537EE4 #E4B953

analogous

#53C6E4 #537EE4 #7053E4

triadic

#537EE4 #E4537E #7EE453

tetradic

#537EE4 #E453C6 #E4B953 #53E470

square

#537EE4 #E453C6 #E4B953 #53E470

split-complementary

#537EE4 #E47053 #C6E453

monochromatic

#1A42A3 #2258D8 #537EE4 #88A6EC #BDCDF5

Accessibility & contrast

On white

3.84

#537EE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#537EE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537EE4

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537EE4	#FFFFFF	#000000	##000000
##537EE4	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D89E8

Deuteranopia (green-blind)

#347CE2

Tritanopia (blue-blind)

#0095A6

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #537ee4;
/* rgb */ color: rgb(83, 126, 228);
/* oklch */ color: oklch(61.3% 0.162 264.9);

Tailwind

colors: {
  custom: {
    50: '#91a2ed',
    500: '#537ee4',
    950: '#000000',
  },
}

SCSS

$custom: #537ee4;
$custom-light: #91a2ed;
$custom-dark: #000000;

JSON

{
  "hex": "#537ee4",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 228
  },
  "hsl": {
    "h": 222.207,
    "s": 72.864,
    "l": 60.98
  },
  "oklch": {
    "l": 0.61279,
    "c": 0.16154,
    "h": 264.9
  },
  "luminance": 0.22362
}

Semantic roles & 50–950 ramp

primary

#537EE4

secondary

#E5D5AE

accent

#9B11D5

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #537EE4

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

Preview Lab → · Contrast checker → · Palette generator →