#537DE3#537DE3

#537DE3 is a mid, vivid blue. Relative luminance 0.221; OKLCH L 61.0% C 0.161 H 265.1°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#537DE3
RGB	rgb(83, 125, 227)
HSL	hsl(223, 72%, 61%)
HSV	hsv(223, 63%, 89%)
CMYK	cmyk(63.4%, 44.9%, 0%, 11%)
CIE-LAB	lab(54.08, 17.27, -56.28)
CIE-LCH	lch(54.08, 58.87, 287.06°)
OKLab	oklab(61.01% -0.0137 -0.1608)
OKLCH	oklch(61.01% 0.161 265.1)
XYZ	xyz(24.7612, 22.0500, 75.6093)
Luminance	0.2205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DE3 #E3B953

analogous

#53C5E3 #537DE3 #7153E3

triadic

#537DE3 #E3537D #7DE353

tetradic

#537DE3 #E353C5 #E3B953 #53E371

square

#537DE3 #E353C5 #E3B953 #53E371

split-complementary

#537DE3 #E37153 #C5E353

monochromatic

#1A42A1 #2357D6 #537DE3 #88A5EC #BCCDF4

Accessibility & contrast

On white

3.88

#537DE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#537DE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DE3

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DE3	#FFFFFF	#000000	##000000
##537DE3	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C88E7

Deuteranopia (green-blind)

#337BE1

Tritanopia (blue-blind)

#0094A5

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #537de3;
/* rgb */ color: rgb(83, 125, 227);
/* oklch */ color: oklch(61.0% 0.161 265.1);

Tailwind

colors: {
  custom: {
    50: '#90a2ec',
    500: '#537de3',
    950: '#000000',
  },
}

SCSS

$custom: #537de3;
$custom-light: #90a2ec;
$custom-dark: #000000;

JSON

{
  "hex": "#537de3",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 227
  },
  "hsl": {
    "h": 222.5,
    "s": 72,
    "l": 60.784
  },
  "oklch": {
    "l": 0.6101,
    "c": 0.16138,
    "h": 265.1
  },
  "luminance": 0.22052
}

Semantic roles & 50–950 ramp

primary

#537DE3

secondary

#E4D4AE

accent

#9B11D4

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #537DE3

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

Preview Lab → · Contrast checker → · Palette generator →