#537FC5#537FC5

#537FC5 is a mid, moderate blue. Relative luminance 0.210; OKLCH L 59.6% C 0.118 H 259.3°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#537FC5
RGB	rgb(83, 127, 197)
HSL	hsl(217, 50%, 55%)
HSV	hsv(217, 58%, 77%)
CMYK	cmyk(57.9%, 35.5%, 0%, 22.7%)
CIE-LAB	lab(53.00, 5.96, -41.04)
CIE-LCH	lch(53.00, 41.47, 278.26°)
OKLab	oklab(59.65% -0.0219 -0.1161)
OKLCH	oklch(59.65% 0.118 259.3)
XYZ	xyz(21.2312, 21.0472, 55.7562)
Luminance	0.2105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537FC5 #C59953

analogous

#53B8C5 #537FC5 #6053C5

triadic

#537FC5 #C5537F #7FC553

tetradic

#537FC5 #C553B8 #C59953 #53C560

square

#537FC5 #C553B8 #C59953 #53C560

split-complementary

#537FC5 #C56053 #B8C553

monochromatic

#284676 #3761A4 #537FC5 #81A1D4 #AFC3E4

Accessibility & contrast

On white

4.03

#537FC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#537FC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537FC5

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537FC5	#FFFFFF	#000000	##000000
##537FC5	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6284C8

Deuteranopia (green-blind)

#537AC4

Tritanopia (blue-blind)

#008F99

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537fc5;
/* rgb */ color: rgb(83, 127, 197);
/* oklch */ color: oklch(59.6% 0.118 259.3);

Tailwind

colors: {
  custom: {
    50: '#8ca3d7',
    500: '#537fc5',
    950: '#000000',
  },
}

SCSS

$custom: #537fc5;
$custom-light: #8ca3d7;
$custom-dark: #000000;

JSON

{
  "hex": "#537fc5",
  "rgb": {
    "r": 83,
    "g": 127,
    "b": 197
  },
  "hsl": {
    "h": 216.842,
    "s": 49.565,
    "l": 54.902
  },
  "oklch": {
    "l": 0.59647,
    "c": 0.11816,
    "h": 259.3
  },
  "luminance": 0.21049
}

Semantic roles & 50–950 ramp

primary

#537FC5

secondary

#D2BFA2

accent

#A44FD9

background

#F9FAFD

surface

#F1F3FA

border

#CBCDD3

text

#0D0F14

muted

#7E7F83

Preview Lab

Preview with #537FC5

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

Preview Lab → · Contrast checker → · Palette generator →