#537DD5#537DD5

#537DD5 is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.1% C 0.142 H 263.5°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#537DD5
RGB	rgb(83, 125, 213)
HSL	hsl(221, 61%, 58%)
HSV	hsv(221, 61%, 84%)
CMYK	cmyk(61%, 41.3%, 0%, 16.5%)
CIE-LAB	lab(53.29, 12.51, -49.67)
CIE-LCH	lch(53.29, 51.22, 284.14°)
OKLab	oklab(60.14% -0.0162 -0.1414)
OKLCH	oklch(60.14% 0.142 263.5)
XYZ	xyz(22.9070, 21.3083, 65.8436)
Luminance	0.2131 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DD5 #D5AB53

analogous

#53BED5 #537DD5 #6A53D5

triadic

#537DD5 #D5537D #7DD553

tetradic

#537DD5 #D553BE #D5AB53 #53D56A

square

#537DD5 #D553BE #D5AB53 #53D56A

split-complementary

#537DD5 #D56A53 #BED553

monochromatic

#22448C #2E5CBD #537DD5 #84A2E1 #B5C7ED

Accessibility & contrast

On white

3.99

#537DD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#537DD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DD5

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DD5	#FFFFFF	#000000	##000000
##537DD5	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5686D8

Deuteranopia (green-blind)

#437AD3

Tritanopia (blue-blind)

#00919F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #537dd5;
/* rgb */ color: rgb(83, 125, 213);
/* oklch */ color: oklch(60.1% 0.142 263.5);

Tailwind

colors: {
  custom: {
    50: '#8ea2e2',
    500: '#537dd5',
    950: '#000000',
  },
}

SCSS

$custom: #537dd5;
$custom-light: #8ea2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#537dd5",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 213
  },
  "hsl": {
    "h": 220.615,
    "s": 60.748,
    "l": 58.039
  },
  "oklch": {
    "l": 0.60141,
    "c": 0.14231,
    "h": 263.5
  },
  "luminance": 0.2131
}

Semantic roles & 50–950 ramp

primary

#537DD5

secondary

#DCCBA8

accent

#B044E4

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #537DD5

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

Preview Lab → · Contrast checker → · Palette generator →