#537FC7#537FC7

#537FC7 is a mid, vivid blue. Relative luminance 0.211; OKLCH L 59.8% C 0.121 H 259.8°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#537FC7
RGB	rgb(83, 127, 199)
HSL	hsl(217, 51%, 55%)
HSV	hsv(217, 58%, 78%)
CMYK	cmyk(58.3%, 36.2%, 0%, 22%)
CIE-LAB	lab(53.10, 6.62, -42.02)
CIE-LCH	lch(53.10, 42.54, 278.95°)
OKLab	oklab(59.76% -0.0214 -0.119)
OKLCH	oklch(59.76% 0.121 259.8)
XYZ	xyz(21.4619, 21.1395, 56.9711)
Luminance	0.2114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FC7 #C79B53

analogous

#53B9C7 #537FC7 #6153C7

triadic

#537FC7 #C7537F #7FC753

tetradic

#537FC7 #C753B9 #C79B53 #53C761

square

#537FC7 #C753B9 #C79B53 #53C761

split-complementary

#537FC7 #C76153 #B9C753

monochromatic

#274678 #3661A7 #537FC7 #81A1D6 #AFC4E5

Accessibility & contrast

On white

4.02

#537FC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#537FC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FC7

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FC7	#FFFFFF	#000000	##000000
##537FC7	1.00	4.02	5.23	5.23
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6185CA

Deuteranopia (green-blind)

#527AC5

Tritanopia (blue-blind)

#008F99

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537fc7;
/* rgb */ color: rgb(83, 127, 199);
/* oklch */ color: oklch(59.8% 0.121 259.8);

Tailwind

colors: {
  custom: {
    50: '#8ca3d8',
    500: '#537fc7',
    950: '#000000',
  },
}

SCSS

$custom: #537fc7;
$custom-light: #8ca3d8;
$custom-dark: #000000;

JSON

{
  "hex": "#537fc7",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 199
  },
  "hsl": {
    "h": 217.241,
    "s": 50.877,
    "l": 55.294
  },
  "oklch": {
    "l": 0.59758,
    "c": 0.12089,
    "h": 259.8
  },
  "luminance": 0.21141
}

Semantic roles & 50–950 ramp

primary

#537FC7

secondary

#D3C1A3

accent

#A54DDA

background

#F9FAFD

surface

#F1F3FA

border

#CBCDD3

text

#0D0F14

muted

#7E7F83

Preview Lab

Preview with #537FC7

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

Preview Lab → · Contrast checker → · Palette generator →