#537FE8#537FE8

#537FE8 is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.7% C 0.166 H 264.9°. Best body text is #000000 at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#537FE8
RGB	rgb(83, 127, 232)
HSL	hsl(222, 76%, 62%)
HSV	hsv(222, 64%, 91%)
CMYK	cmyk(64.2%, 45.3%, 0%, 9%)
CIE-LAB	lab(54.91, 17.75, -57.75)
CIE-LCH	lch(54.91, 60.42, 287.09°)
OKLab	oklab(61.74% -0.0148 -0.1651)
OKLCH	oklch(61.74% 0.166 264.9)
XYZ	xyz(25.7171, 22.8415, 79.3819)
Luminance	0.2284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FE8 #E8BC53

analogous

#53C9E8 #537FE8 #7253E8

triadic

#537FE8 #E8537F #7FE853

tetradic

#537FE8 #E853C9 #E8BC53 #53E872

square

#537FE8 #E853C9 #E8BC53 #53E872

split-complementary

#537FE8 #E87253 #C9E853

monochromatic

#1742AA #1E57E0 #537FE8 #89A7EF #BFCFF6

Accessibility & contrast

On white

3.77

#537FE8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.57

#537FE8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FE8

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FE8	#FFFFFF	#000000	##000000
##537FE8	1.00	3.77	5.57	5.57
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.57	21.00	1.00	1.00
##000000	5.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B8BEC

Deuteranopia (green-blind)

#317DE6

Tritanopia (blue-blind)

#0097A8

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #537fe8;
/* rgb */ color: rgb(83, 127, 232);
/* oklch */ color: oklch(61.7% 0.166 264.9);

Tailwind

colors: {
  custom: {
    50: '#91a3f0',
    500: '#537fe8',
    950: '#000000',
  },
}

SCSS

$custom: #537fe8;
$custom-light: #91a3f0;
$custom-dark: #000000;

JSON

{
  "hex": "#537fe8",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 232
  },
  "hsl": {
    "h": 222.282,
    "s": 76.41,
    "l": 61.765
  },
  "oklch": {
    "l": 0.6174,
    "c": 0.16575,
    "h": 264.9
  },
  "luminance": 0.22844
}

Semantic roles & 50–950 ramp

primary

#537FE8

secondary

#E7D7B0

accent

#9C0DD9

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #537FE8

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

Preview Lab → · Contrast checker → · Palette generator →