#537DDC#537DDC

#537DDC is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.6% C 0.152 H 264.4°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#537DDC
RGB	rgb(83, 125, 220)
HSL	hsl(222, 66%, 59%)
HSV	hsv(222, 62%, 86%)
CMYK	cmyk(62.3%, 43.2%, 0%, 13.7%)
CIE-LAB	lab(53.68, 14.88, -52.99)
CIE-LCH	lch(53.68, 55.04, 285.69°)
OKLab	oklab(60.57% -0.0149 -0.1511)
OKLCH	oklch(60.57% 0.152 264.4)
XYZ	xyz(23.8147, 21.6714, 70.6243)
Luminance	0.2167 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DDC #DCB253

analogous

#53C2DC #537DDC #6E53DC

triadic

#537DDC #DC537D #7DDC53

tetradic

#537DDC #DC53C2 #DCB253 #53DC6E

square

#537DDC #DC53C2 #DCB253 #53DC6E

split-complementary

#537DDC #DC6E53 #C2DC53

monochromatic

#1F4396 #295AC9 #537DDC #86A3E6 #B9CAF1

Accessibility & contrast

On white

3.94

#537DDC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#537DDC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DDC

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DDC	#FFFFFF	#000000	##000000
##537DDC	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5187E0

Deuteranopia (green-blind)

#3C7ADA

Tritanopia (blue-blind)

#0093A2

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #537ddc;
/* rgb */ color: rgb(83, 125, 220);
/* oklch */ color: oklch(60.6% 0.152 264.4);

Tailwind

colors: {
  custom: {
    50: '#8fa2e7',
    500: '#537ddc',
    950: '#000000',
  },
}

SCSS

$custom: #537ddc;
$custom-light: #8fa2e7;
$custom-dark: #000000;

JSON

{
  "hex": "#537ddc",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 220
  },
  "hsl": {
    "h": 221.606,
    "s": 66.184,
    "l": 59.412
  },
  "oklch": {
    "l": 0.6057,
    "c": 0.15187,
    "h": 264.4
  },
  "luminance": 0.21674
}

Semantic roles & 50–950 ramp

primary

#537DDC

secondary

#E0D0AB

accent

#B53FE9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #537DDC

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

Preview Lab → · Contrast checker → · Palette generator →