#537DEE#537DEE

#537DEE is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.7% C 0.176 H 266.1°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#537DEE
RGB	rgb(83, 125, 238)
HSL	hsl(224, 82%, 63%)
HSV	hsv(224, 65%, 93%)
CMYK	cmyk(65.1%, 47.5%, 0%, 6.7%)
CIE-LAB	lab(54.74, 21.03, -61.37)
CIE-LCH	lch(54.74, 64.87, 288.92°)
OKLab	oklab(61.72% -0.0121 -0.1758)
OKLCH	oklch(61.72% 0.176 266.1)
XYZ	xyz(26.3282, 22.6768, 83.8619)
Luminance	0.2268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DEE #EEC453

analogous

#53CAEE #537DEE #7653EE

triadic

#537DEE #EE537D #7DEE53

tetradic

#537DEE #EE53CA #EEC453 #53EE76

square

#537DEE #EE53CA #EEC453 #53EE76

split-complementary

#537DEE #EE7653 #CAEE53

monochromatic

#123EB5 #1B53E8 #537DEE #8BA7F4 #C2D1F9

Accessibility & contrast

On white

3.79

#537DEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#537DEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DEE

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DEE	#FFFFFF	#000000	##000000
##537DEE	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#428AF2

Deuteranopia (green-blind)

#1F7CEC

Tritanopia (blue-blind)

#0097AA

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #537dee;
/* rgb */ color: rgb(83, 125, 238);
/* oklch */ color: oklch(61.7% 0.176 266.1);

Tailwind

colors: {
  custom: {
    50: '#92a2f4',
    500: '#537dee',
    950: '#000000',
  },
}

SCSS

$custom: #537dee;
$custom-light: #92a2f4;
$custom-dark: #000000;

JSON

{
  "hex": "#537dee",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 238
  },
  "hsl": {
    "h": 223.742,
    "s": 82.011,
    "l": 62.941
  },
  "oklch": {
    "l": 0.61725,
    "c": 0.17618,
    "h": 266.1
  },
  "luminance": 0.22679
}

Semantic roles & 50–950 ramp

primary

#537DEE

secondary

#EADBB2

accent

#A407DE

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #537DEE

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

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