#537CE3#537CE3

#537CE3 is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.8% C 0.163 H 265.5°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#537CE3
RGB	rgb(83, 124, 227)
HSL	hsl(223, 72%, 61%)
HSV	hsv(223, 63%, 89%)
CMYK	cmyk(63.4%, 45.4%, 0%, 11%)
CIE-LAB	lab(53.81, 17.88, -56.71)
CIE-LCH	lch(53.81, 59.46, 287.50°)
OKLab	oklab(60.81% -0.0127 -0.1621)
OKLCH	oklch(60.81% 0.163 265.5)
XYZ	xyz(24.6353, 21.7981, 75.5673)
Luminance	0.2180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CE3 #E3BA53

analogous

#53C4E3 #537CE3 #7253E3

triadic

#537CE3 #E3537C #7CE353

tetradic

#537CE3 #E353C4 #E3BA53 #53E372

square

#537CE3 #E353C4 #E3BA53 #53E372

split-complementary

#537CE3 #E37253 #C4E353

monochromatic

#1A41A1 #2356D6 #537CE3 #88A4EC #BCCCF4

Accessibility & contrast

On white

3.92

#537CE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#537CE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CE3

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CE3	#FFFFFF	#000000	##000000
##537CE3	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A88E7

Deuteranopia (green-blind)

#307AE1

Tritanopia (blue-blind)

#0094A4

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #537ce3;
/* rgb */ color: rgb(83, 124, 227);
/* oklch */ color: oklch(60.8% 0.163 265.5);

Tailwind

colors: {
  custom: {
    50: '#91a1ec',
    500: '#537ce3',
    950: '#000000',
  },
}

SCSS

$custom: #537ce3;
$custom-light: #91a1ec;
$custom-dark: #000000;

JSON

{
  "hex": "#537ce3",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 227
  },
  "hsl": {
    "h": 222.917,
    "s": 72,
    "l": 60.784
  },
  "oklch": {
    "l": 0.60805,
    "c": 0.16257,
    "h": 265.5
  },
  "luminance": 0.218
}

Semantic roles & 50–950 ramp

primary

#537CE3

secondary

#E4D5AE

accent

#9D11D4

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #537CE3

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

Preview Lab → · Contrast checker → · Palette generator →