#537DE0#537DE0

#537DE0 is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.8% C 0.157 H 264.8°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#537DE0
RGB	rgb(83, 125, 224)
HSL	hsl(222, 69%, 60%)
HSV	hsv(222, 63%, 88%)
CMYK	cmyk(62.9%, 44.2%, 0%, 12.2%)
CIE-LAB	lab(53.91, 16.24, -54.88)
CIE-LCH	lch(53.91, 57.23, 286.49°)
OKLab	oklab(60.82% -0.0142 -0.1567)
OKLCH	oklch(60.82% 0.157 264.8)
XYZ	xyz(24.3508, 21.8858, 73.4477)
Luminance	0.2189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537DE0 #E0B653

analogous

#53C3E0 #537DE0 #7053E0

triadic

#537DE0 #E0537D #7DE053

tetradic

#537DE0 #E053C3 #E0B653 #53E070

square

#537DE0 #E053C3 #E0B653 #53E070

split-complementary

#537DE0 #E07053 #C3E053

monochromatic

#1C429C #2658D0 #537DE0 #87A4E9 #BBCBF3

Accessibility & contrast

On white

3.91

#537DE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#537DE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537DE0

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537DE0	#FFFFFF	#000000	##000000
##537DE0	1.00	3.91	5.38	5.38
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E88E4

Deuteranopia (green-blind)

#377BDE

Tritanopia (blue-blind)

#0094A3

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #537de0;
/* rgb */ color: rgb(83, 125, 224);
/* oklch */ color: oklch(60.8% 0.157 264.8);

Tailwind

colors: {
  custom: {
    50: '#90a2ea',
    500: '#537de0',
    950: '#000000',
  },
}

SCSS

$custom: #537de0;
$custom-light: #90a2ea;
$custom-dark: #000000;

JSON

{
  "hex": "#537de0",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 224
  },
  "hsl": {
    "h": 222.128,
    "s": 69.458,
    "l": 60.196
  },
  "oklch": {
    "l": 0.6082,
    "c": 0.15731,
    "h": 264.8
  },
  "luminance": 0.21888
}

Semantic roles & 50–950 ramp

primary

#537DE0

secondary

#E2D2AC

accent

#9914D1

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #537DE0

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

Preview Lab → · Contrast checker → · Palette generator →