#537CCC#537CCC

#537CCC is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.4% C 0.131 H 262.6°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#537CCC
RGB	rgb(83, 124, 204)
HSL	hsl(220, 54%, 56%)
HSV	hsv(220, 59%, 80%)
CMYK	cmyk(59.3%, 39.2%, 0%, 20%)
CIE-LAB	lab(52.52, 10.10, -45.78)
CIE-LCH	lch(52.52, 46.88, 282.44°)
OKLab	oklab(59.39% -0.017 -0.13)
OKLCH	oklch(59.39% 0.131 262.6)
XYZ	xyz(21.6702, 20.6121, 59.9516)
Luminance	0.2061 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CCC #CCA353

analogous

#53B9CC #537CCC #6753CC

triadic

#537CCC #CC537C #7CCC53

tetradic

#537CCC #CC53B9 #CCA353 #53CC67

square

#537CCC #CC53B9 #CCA353 #53CC67

split-complementary

#537CCC #CC6753 #B9CC53

monochromatic

#26447F #345DAE #537CCC #82A0DA #B1C4E8

Accessibility & contrast

On white

4.10

#537CCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#537CCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CCC

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CCC	#FFFFFF	#000000	##000000
##537CCC	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A83CF

Deuteranopia (green-blind)

#4A78CA

Tritanopia (blue-blind)

#008E9A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #537ccc;
/* rgb */ color: rgb(83, 124, 204);
/* oklch */ color: oklch(59.4% 0.131 262.6);

Tailwind

colors: {
  custom: {
    50: '#8da1dc',
    500: '#537ccc',
    950: '#000000',
  },
}

SCSS

$custom: #537ccc;
$custom-light: #8da1dc;
$custom-dark: #000000;

JSON

{
  "hex": "#537ccc",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 204
  },
  "hsl": {
    "h": 219.669,
    "s": 54.26,
    "l": 56.275
  },
  "oklch": {
    "l": 0.59393,
    "c": 0.13111,
    "h": 262.6
  },
  "luminance": 0.20614
}

Semantic roles & 50–950 ramp

primary

#537CCC

secondary

#D6C5A4

accent

#AC4ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #537CCC

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

Preview Lab → · Contrast checker → · Palette generator →