#537BC7#537BC7

#537BC7 is a mid, vivid blue. Relative luminance 0.201; OKLCH L 58.9% C 0.125 H 262.2°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#537BC7
RGB	rgb(83, 123, 199)
HSL	hsl(219, 51%, 55%)
HSV	hsv(219, 58%, 78%)
CMYK	cmyk(58.3%, 38.2%, 0%, 22%)
CIE-LAB	lab(51.98, 9.04, -43.80)
CIE-LCH	lch(51.98, 44.72, 281.66°)
OKLab	oklab(58.89% -0.017 -0.1242)
OKLCH	oklch(58.89% 0.125 262.2)
XYZ	xyz(20.9555, 20.1267, 56.8023)
Luminance	0.2013 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BC7 #C79F53

analogous

#53B5C7 #537BC7 #6553C7

triadic

#537BC7 #C7537B #7BC753

tetradic

#537BC7 #C753B5 #C79F53 #53C765

square

#537BC7 #C753B5 #C79F53 #53C765

split-complementary

#537BC7 #C76553 #B5C753

monochromatic

#274378 #365DA7 #537BC7 #819ED6 #AFC2E5

Accessibility & contrast

On white

4.18

#537BC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#537BC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BC7

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BC7	#FFFFFF	#000000	##000000
##537BC7	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B82CA

Deuteranopia (green-blind)

#4C77C5

Tritanopia (blue-blind)

#008C97

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #537bc7;
/* rgb */ color: rgb(83, 123, 199);
/* oklch */ color: oklch(58.9% 0.125 262.2);

Tailwind

colors: {
  custom: {
    50: '#8ca0d8',
    500: '#537bc7',
    950: '#000000',
  },
}

SCSS

$custom: #537bc7;
$custom-light: #8ca0d8;
$custom-dark: #000000;

JSON

{
  "hex": "#537bc7",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 199
  },
  "hsl": {
    "h": 219.31,
    "s": 50.877,
    "l": 55.294
  },
  "oklch": {
    "l": 0.58888,
    "c": 0.12536,
    "h": 262.2
  },
  "luminance": 0.20128
}

Semantic roles & 50–950 ramp

primary

#537BC7

secondary

#D3C2A3

accent

#AA4DDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #537BC7

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

Preview Lab → · Contrast checker → · Palette generator →