#537EEE#537EEE

#537EEE is a mid, vivid blue. Relative luminance 0.229; OKLCH L 61.9% C 0.175 H 265.7°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#537EEE
RGB	rgb(83, 126, 238)
HSL	hsl(223, 82%, 63%)
HSV	hsv(223, 65%, 93%)
CMYK	cmyk(65.1%, 47.1%, 0%, 6.7%)
CIE-LAB	lab(55.00, 20.42, -60.94)
CIE-LCH	lch(55.00, 64.27, 288.52°)
OKLab	oklab(61.93% -0.013 -0.1745)
OKLCH	oklch(61.93% 0.175 265.7)
XYZ	xyz(26.4554, 22.9313, 83.9043)
Luminance	0.2293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537EEE #EEC353

analogous

#53CBEE #537EEE #7553EE

triadic

#537EEE #EE537E #7EEE53

tetradic

#537EEE #EE53CB #EEC353 #53EE75

square

#537EEE #EE53CB #EEC353 #53EE75

split-complementary

#537EEE #EE7553 #CBEE53

monochromatic

#123FB5 #1B54E8 #537EEE #8BA8F4 #C2D2F9

Accessibility & contrast

On white

3.76

#537EEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#537EEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537EEE

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537EEE	#FFFFFF	#000000	##000000
##537EEE	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#448BF2

Deuteranopia (green-blind)

#237DEC

Tritanopia (blue-blind)

#0098AA

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #537eee;
/* rgb */ color: rgb(83, 126, 238);
/* oklch */ color: oklch(61.9% 0.175 265.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#537eee",
  "rgb": {
    "r": 83,
    "g": 126,
    "b": 238
  },
  "hsl": {
    "h": 223.355,
    "s": 82.011,
    "l": 62.941
  },
  "oklch": {
    "l": 0.61926,
    "c": 0.17499,
    "h": 265.7
  },
  "luminance": 0.22934
}

Semantic roles & 50–950 ramp

primary

#537EEE

secondary

#EADBB2

accent

#A307DE

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #537EEE

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

Preview Lab → · Contrast checker → · Palette generator →