#537BCC#537BCC

#537BCC is a mid, vivid blue. Relative luminance 0.204; OKLCH L 59.2% C 0.132 H 263.1°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#537BCC
RGB	rgb(83, 123, 204)
HSL	hsl(220, 54%, 56%)
HSV	hsv(220, 59%, 80%)
CMYK	cmyk(59.3%, 39.7%, 0%, 20%)
CIE-LAB	lab(52.24, 10.71, -46.22)
CIE-LCH	lch(52.24, 47.45, 283.04°)
OKLab	oklab(59.18% -0.0159 -0.1313)
OKLCH	oklch(59.18% 0.132 263.1)
XYZ	xyz(21.5456, 20.3627, 59.9100)
Luminance	0.2036 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BCC #CCA453

analogous

#53B8CC #537BCC #6853CC

triadic

#537BCC #CC537B #7BCC53

tetradic

#537BCC #CC53B8 #CCA453 #53CC68

square

#537BCC #CC53B8 #CCA453 #53CC68

split-complementary

#537BCC #CC6853 #B8CC53

monochromatic

#26437F #345CAE #537BCC #829FDA #B1C3E8

Accessibility & contrast

On white

4.14

#537BCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#537BCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BCC

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BCC	#FFFFFF	#000000	##000000
##537BCC	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5883CF

Deuteranopia (green-blind)

#4877CA

Tritanopia (blue-blind)

#008D9A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #537bcc;
/* rgb */ color: rgb(83, 123, 204);
/* oklch */ color: oklch(59.2% 0.132 263.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#537bcc",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 204
  },
  "hsl": {
    "h": 220.165,
    "s": 54.26,
    "l": 56.275
  },
  "oklch": {
    "l": 0.59179,
    "c": 0.13227,
    "h": 263.1
  },
  "luminance": 0.20365
}

Semantic roles & 50–950 ramp

primary

#537BCC

secondary

#D6C6A4

accent

#AD4ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #537BCC

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

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