#537EEF#537EEF

#537EEF is a mid, vivid blue. Relative luminance 0.230; OKLCH L 62.0% C 0.176 H 265.8°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#537EEF
RGB	rgb(83, 126, 239)
HSL	hsl(223, 83%, 63%)
HSV	hsv(223, 65%, 94%)
CMYK	cmyk(65.3%, 47.3%, 0%, 6.3%)
CIE-LAB	lab(55.06, 20.76, -61.40)
CIE-LCH	lch(55.06, 64.82, 288.68°)
OKLab	oklab(61.99% -0.0129 -0.1758)
OKLCH	oklch(61.99% 0.176 265.8)
XYZ	xyz(26.6027, 22.9902, 84.6802)
Luminance	0.2299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537EEF #EFC453

analogous

#53CCEF #537EEF #7653EF

triadic

#537EEF #EF537E #7EEF53

tetradic

#537EEF #EF53CC #EFC453 #53EF76

square

#537EEF #EF53CC #EFC453 #53EF76

split-complementary

#537EEF #EF7653 #CCEF53

monochromatic

#113FB7 #1B54EA #537EEF #8BA8F4 #C3D2F9

Accessibility & contrast

On white

3.75

#537EEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#537EEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537EEF

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537EEF	#FFFFFF	#000000	##000000
##537EEF	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#438BF3

Deuteranopia (green-blind)

#207DED

Tritanopia (blue-blind)

#0098AB

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #537eef;
/* rgb */ color: rgb(83, 126, 239);
/* oklch */ color: oklch(62.0% 0.176 265.8);

Tailwind

colors: {
  custom: {
    50: '#92a2f5',
    500: '#537eef',
    950: '#000000',
  },
}

SCSS

$custom: #537eef;
$custom-light: #92a2f5;
$custom-dark: #000000;

JSON

{
  "hex": "#537eef",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 239
  },
  "hsl": {
    "h": 223.462,
    "s": 82.979,
    "l": 63.137
  },
  "oklch": {
    "l": 0.61992,
    "c": 0.17632,
    "h": 265.8
  },
  "luminance": 0.22993
}

Semantic roles & 50–950 ramp

primary

#537EEF

secondary

#EBDBB3

accent

#A406DF

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #537EEF

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

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