#537CD5#537CD5

#537CD5 is a mid, vivid blue. Relative luminance 0.211; OKLCH L 59.9% C 0.143 H 263.9°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#537CD5
RGB	rgb(83, 124, 213)
HSL	hsl(221, 61%, 58%)
HSV	hsv(221, 61%, 84%)
CMYK	cmyk(61%, 41.8%, 0%, 16.5%)
CIE-LAB	lab(53.01, 13.12, -50.11)
CIE-LCH	lch(53.01, 51.80, 284.68°)
OKLab	oklab(59.93% -0.0151 -0.1427)
OKLCH	oklch(59.93% 0.143 263.9)
XYZ	xyz(22.7810, 21.0564, 65.8017)
Luminance	0.2106 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CD5 #D5AC53

analogous

#53BDD5 #537CD5 #6B53D5

triadic

#537CD5 #D5537C #7CD553

tetradic

#537CD5 #D553BD #D5AC53 #53D56B

square

#537CD5 #D553BD #D5AC53 #53D56B

split-complementary

#537CD5 #D56B53 #BDD553

monochromatic

#22438C #2E5BBD #537CD5 #84A1E1 #B5C7ED

Accessibility & contrast

On white

4.03

#537CD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#537CD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CD5

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CD5	#FFFFFF	#000000	##000000
##537CD5	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)

#5485D8

Deuteranopia (green-blind)

#4179D3

Tritanopia (blue-blind)

#00909E

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537cd5;
/* rgb */ color: rgb(83, 124, 213);
/* oklch */ color: oklch(59.9% 0.143 263.9);

Tailwind

colors: {
  custom: {
    50: '#8ea1e2',
    500: '#537cd5',
    950: '#000000',
  },
}

SCSS

$custom: #537cd5;
$custom-light: #8ea1e2;
$custom-dark: #000000;

JSON

{
  "hex": "#537cd5",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 213
  },
  "hsl": {
    "h": 221.077,
    "s": 60.748,
    "l": 58.039
  },
  "oklch": {
    "l": 0.5993,
    "c": 0.14348,
    "h": 263.9
  },
  "luminance": 0.21058
}

Semantic roles & 50–950 ramp

primary

#537CD5

secondary

#DCCBA8

accent

#B144E4

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #537CD5

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

Preview Lab → · Contrast checker → · Palette generator →