#537AEF#537AEF

#537AEF is a mid, vivid blue. Relative luminance 0.220; OKLCH L 61.2% C 0.181 H 267.1°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#537AEF
RGB	rgb(83, 122, 239)
HSL	hsl(225, 83%, 63%)
HSV	hsv(225, 65%, 94%)
CMYK	cmyk(65.3%, 49%, 0%, 6.3%)
CIE-LAB	lab(54.01, 23.21, -63.09)
CIE-LCH	lch(54.01, 67.22, 290.20°)
OKLab	oklab(61.19% -0.0093 -0.1809)
OKLCH	oklch(61.19% 0.181 267.1)
XYZ	xyz(26.1014, 21.9876, 84.5131)
Luminance	0.2199 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537AEF #EFC853

analogous

#53C8EF #537AEF #7A53EF

triadic

#537AEF #EF537A #7AEF53

tetradic

#537AEF #EF53C8 #EFC853 #53EF7A

square

#537AEF #EF53C8 #EFC853 #53EF7A

split-complementary

#537AEF #EF7A53 #C8EF53

monochromatic

#113AB7 #1B4FEA #537AEF #8BA5F4 #C3D1F9

Accessibility & contrast

On white

3.89

#537AEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#537AEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537AEF

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537AEF	#FFFFFF	#000000	##000000
##537AEF	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3989F3

Deuteranopia (green-blind)

#087AED

Tritanopia (blue-blind)

#0095A9

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #537aef;
/* rgb */ color: rgb(83, 122, 239);
/* oklch */ color: oklch(61.2% 0.181 267.1);

Tailwind

colors: {
  custom: {
    50: '#939ff5',
    500: '#537aef',
    950: '#000000',
  },
}

SCSS

$custom: #537aef;
$custom-light: #939ff5;
$custom-dark: #000000;

JSON

{
  "hex": "#537aef",
  "rgb": {
    "r": 83,
    "g": 122,
    "b": 239
  },
  "hsl": {
    "h": 225,
    "s": 82.979,
    "l": 63.137
  },
  "oklch": {
    "l": 0.61193,
    "c": 0.1811,
    "h": 267.1
  },
  "luminance": 0.2199
}

Semantic roles & 50–950 ramp

primary

#537AEF

secondary

#EBDDB3

accent

#A906DF

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #537AEF

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

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