#537ACC#537ACC

#537ACC is a mid, vivid blue. Relative luminance 0.201; OKLCH L 59.0% C 0.133 H 263.6°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#537ACC
RGB	rgb(83, 122, 204)
HSL	hsl(221, 54%, 56%)
HSV	hsv(221, 59%, 80%)
CMYK	cmyk(59.3%, 40.2%, 0%, 20%)
CIE-LAB	lab(51.97, 11.32, -46.66)
CIE-LCH	lch(51.97, 48.02, 283.63°)
OKLab	oklab(58.97% -0.0148 -0.1326)
OKLCH	oklch(58.97% 0.133 263.6)
XYZ	xyz(21.4221, 20.1159, 59.8689)
Luminance	0.2012 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537ACC #CCA553

analogous

#53B7CC #537ACC #6953CC

triadic

#537ACC #CC537A #7ACC53

tetradic

#537ACC #CC53B7 #CCA553 #53CC69

square

#537ACC #CC53B7 #CCA553 #53CC69

split-complementary

#537ACC #CC6953 #B7CC53

monochromatic

#26427F #345BAE #537ACC #829FDA #B1C3E8

Accessibility & contrast

On white

4.18

#537ACC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#537ACC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537ACC

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537ACC	#FFFFFF	#000000	##000000
##537ACC	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5782CF

Deuteranopia (green-blind)

#4677CA

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #537acc;
/* rgb */ color: rgb(83, 122, 204);
/* oklch */ color: oklch(59.0% 0.133 263.6);

Tailwind

colors: {
  custom: {
    50: '#8da0dc',
    500: '#537acc',
    950: '#000000',
  },
}

SCSS

$custom: #537acc;
$custom-light: #8da0dc;
$custom-dark: #000000;

JSON

{
  "hex": "#537acc",
  "rgb": {
    "r": 83,
    "g": 122,
    "b": 204
  },
  "hsl": {
    "h": 220.661,
    "s": 54.26,
    "l": 56.275
  },
  "oklch": {
    "l": 0.58965,
    "c": 0.13343,
    "h": 263.6
  },
  "luminance": 0.20118
}

Semantic roles & 50–950 ramp

primary

#537ACC

secondary

#D6C6A4

accent

#AE4ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #537ACC

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

Preview Lab → · Contrast checker → · Palette generator →