#537ACB#537ACB

#537ACB is a mid, vivid blue. Relative luminance 0.201; OKLCH L 58.9% C 0.132 H 263.5°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#537ACB
RGB	rgb(83, 122, 203)
HSL	hsl(221, 54%, 56%)
HSV	hsv(221, 59%, 80%)
CMYK	cmyk(59.1%, 39.9%, 0%, 20.4%)
CIE-LAB	lab(51.91, 10.98, -46.18)
CIE-LCH	lch(51.91, 47.47, 283.38°)
OKLab	oklab(58.91% -0.015 -0.1312)
OKLCH	oklch(58.91% 0.132 263.5)
XYZ	xyz(21.3026, 20.0681, 59.2393)
Luminance	0.2007 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537ACB #CBA453

analogous

#53B6CB #537ACB #6853CB

triadic

#537ACB #CB537A #7ACB53

tetradic

#537ACB #CB53B6 #CBA453 #53CB68

square

#537ACB #CB53B6 #CBA453 #53CB68

split-complementary

#537ACB #CB6853 #B6CB53

monochromatic

#26427E #345BAD #537ACB #829ED9 #B1C3E7

Accessibility & contrast

On white

4.19

#537ACB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#537ACB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537ACB

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537ACB	#FFFFFF	#000000	##000000
##537ACB	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5782CE

Deuteranopia (green-blind)

#4777C9

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #537acb;
/* rgb */ color: rgb(83, 122, 203);
/* oklch */ color: oklch(58.9% 0.132 263.5);

Tailwind

colors: {
  custom: {
    50: '#8da0db',
    500: '#537acb',
    950: '#000000',
  },
}

SCSS

$custom: #537acb;
$custom-light: #8da0db;
$custom-dark: #000000;

JSON

{
  "hex": "#537acb",
  "rgb": {
    "r": 83,
    "g": 122,
    "b": 203
  },
  "hsl": {
    "h": 220.5,
    "s": 53.571,
    "l": 56.078
  },
  "oklch": {
    "l": 0.58906,
    "c": 0.13205,
    "h": 263.5
  },
  "luminance": 0.2007
}

Semantic roles & 50–950 ramp

primary

#537ACB

secondary

#D6C6A4

accent

#AD4BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #537ACB

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

Preview Lab → · Contrast checker → · Palette generator →