#537DCA#537DCA

#537DCA is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.5% C 0.127 H 261.6°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#537DCA
RGB	rgb(83, 125, 202)
HSL	hsl(219, 53%, 56%)
HSV	hsv(219, 59%, 79%)
CMYK	cmyk(58.9%, 38.1%, 0%, 20.8%)
CIE-LAB	lab(52.70, 8.82, -44.37)
CIE-LCH	lch(52.70, 45.24, 281.25°)
OKLab	oklab(59.49% -0.0185 -0.1259)
OKLCH	oklch(59.49% 0.127 261.6)
XYZ	xyz(21.5579, 20.7687, 58.7384)
Luminance	0.2077 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DCA #CAA053

analogous

#53B8CA #537DCA #6453CA

triadic

#537DCA #CA537D #7DCA53

tetradic

#537DCA #CA53B8 #CAA053 #53CA64

square

#537DCA #CA53B8 #CAA053 #53CA64

split-complementary

#537DCA #CA6453 #B8CA53

monochromatic

#26457C #355EAB #537DCA #82A0D8 #B1C4E7

Accessibility & contrast

On white

4.07

#537DCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#537DCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DCA

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DCA	#FFFFFF	#000000	##000000
##537DCA	1.00	4.07	5.15	5.15
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C84CD

Deuteranopia (green-blind)

#4D79C8

Tritanopia (blue-blind)

#008E9A

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537dca;
/* rgb */ color: rgb(83, 125, 202);
/* oklch */ color: oklch(59.5% 0.127 261.6);

Tailwind

colors: {
  custom: {
    50: '#8da2da',
    500: '#537dca',
    950: '#000000',
  },
}

SCSS

$custom: #537dca;
$custom-light: #8da2da;
$custom-dark: #000000;

JSON

{
  "hex": "#537dca",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 202
  },
  "hsl": {
    "h": 218.824,
    "s": 52.889,
    "l": 55.882
  },
  "oklch": {
    "l": 0.59493,
    "c": 0.12722,
    "h": 261.6
  },
  "luminance": 0.2077
}

Semantic roles & 50–950 ramp

primary

#537DCA

secondary

#D5C4A4

accent

#A94CDC

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #537DCA

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

Preview Lab → · Contrast checker → · Palette generator →