#537BCE#537BCE

#537BCE is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.3% C 0.135 H 263.4°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#537BCE
RGB	rgb(83, 123, 206)
HSL	hsl(220, 56%, 57%)
HSV	hsv(220, 60%, 81%)
CMYK	cmyk(59.7%, 40.3%, 0%, 19.2%)
CIE-LAB	lab(52.35, 11.38, -47.19)
CIE-LCH	lch(52.35, 48.54, 283.56°)
OKLab	oklab(59.3% -0.0155 -0.1341)
OKLCH	oklch(59.3% 0.135 263.4)
XYZ	xyz(21.7870, 20.4593, 61.1815)
Luminance	0.2046 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BCE #CEA653

analogous

#53B9CE #537BCE #6953CE

triadic

#537BCE #CE537B #7BCE53

tetradic

#537BCE #CE53B9 #CEA653 #53CE69

square

#537BCE #CE53B9 #CEA653 #53CE69

split-complementary

#537BCE #CE6953 #B9CE53

monochromatic

#254382 #335CB1 #537BCE #83A0DC #B2C4E9

Accessibility & contrast

On white

4.12

#537BCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#537BCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BCE

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BCE	#FFFFFF	#000000	##000000
##537BCE	1.00	4.12	5.09	5.09
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5783D1

Deuteranopia (green-blind)

#4678CC

Tritanopia (blue-blind)

#008E9A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #537bce;
/* rgb */ color: rgb(83, 123, 206);
/* oklch */ color: oklch(59.3% 0.135 263.4);

Tailwind

colors: {
  custom: {
    50: '#8da0dd',
    500: '#537bce',
    950: '#000000',
  },
}

SCSS

$custom: #537bce;
$custom-light: #8da0dd;
$custom-dark: #000000;

JSON

{
  "hex": "#537bce",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 206
  },
  "hsl": {
    "h": 220.488,
    "s": 55.656,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59297,
    "c": 0.13503,
    "h": 263.4
  },
  "luminance": 0.20461
}

Semantic roles & 50–950 ramp

primary

#537BCE

secondary

#D8C7A5

accent

#AE49DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #537BCE

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

Preview Lab → · Contrast checker → · Palette generator →