#537DCC#537DCC

#537DCC is a mid, vivid blue. Relative luminance 0.209; OKLCH L 59.6% C 0.130 H 262.0°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#537DCC
RGB	rgb(83, 125, 204)
HSL	hsl(219, 54%, 56%)
HSV	hsv(219, 59%, 80%)
CMYK	cmyk(59.3%, 38.7%, 0%, 20%)
CIE-LAB	lab(52.80, 9.49, -45.34)
CIE-LCH	lch(52.80, 46.32, 281.82°)
OKLab	oklab(59.61% -0.018 -0.1287)
OKLCH	oklch(59.61% 0.13 262)
XYZ	xyz(21.7962, 20.8640, 59.9936)
Luminance	0.2087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DCC #CCA253

analogous

#53B9CC #537DCC #6653CC

triadic

#537DCC #CC537D #7DCC53

tetradic

#537DCC #CC53B9 #CCA253 #53CC66

square

#537DCC #CC53B9 #CCA253 #53CC66

split-complementary

#537DCC #CC6653 #B9CC53

monochromatic

#26457F #345EAE #537DCC #82A1DA #B1C4E8

Accessibility & contrast

On white

4.06

#537DCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#537DCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DCC

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DCC	#FFFFFF	#000000	##000000
##537DCC	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B84CF

Deuteranopia (green-blind)

#4B79CA

Tritanopia (blue-blind)

#008F9B

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537dcc;
/* rgb */ color: rgb(83, 125, 204);
/* oklch */ color: oklch(59.6% 0.130 262.0);

Tailwind

colors: {
  custom: {
    50: '#8da2dc',
    500: '#537dcc',
    950: '#000000',
  },
}

SCSS

$custom: #537dcc;
$custom-light: #8da2dc;
$custom-dark: #000000;

JSON

{
  "hex": "#537dcc",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 204
  },
  "hsl": {
    "h": 219.174,
    "s": 54.26,
    "l": 56.275
  },
  "oklch": {
    "l": 0.59609,
    "c": 0.12997,
    "h": 262
  },
  "luminance": 0.20866
}

Semantic roles & 50–950 ramp

primary

#537DCC

secondary

#D6C5A4

accent

#AA4ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #537DCC

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

Preview Lab → · Contrast checker → · Palette generator →