#537BD2#537BD2

#537BD2 is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.5% C 0.141 H 264.0°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#537BD2
RGB	rgb(83, 123, 210)
HSL	hsl(221, 59%, 57%)
HSV	hsv(221, 60%, 82%)
CMYK	cmyk(60.5%, 41.4%, 0%, 17.6%)
CIE-LAB	lab(52.57, 12.72, -49.11)
CIE-LCH	lch(52.57, 50.73, 284.52°)
OKLab	oklab(59.54% -0.0147 -0.1398)
OKLCH	oklch(59.54% 0.141 264)
XYZ	xyz(22.2791, 20.6561, 63.7732)
Luminance	0.2066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537BD2 #D2AA53

analogous

#53BBD2 #537BD2 #6A53D2

triadic

#537BD2 #D2537B #7BD253

tetradic

#537BD2 #D253BB #D2AA53 #53D26A

square

#537BD2 #D253BB #D2AA53 #53D26A

split-complementary

#537BD2 #D26A53 #BBD253

monochromatic

#234387 #305BB8 #537BD2 #84A0DF #B4C5EB

Accessibility & contrast

On white

4.09

#537BD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#537BD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537BD2

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537BD2	#FFFFFF	#000000	##000000
##537BD2	1.00	4.09	5.13	5.13
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5484D5

Deuteranopia (green-blind)

#4378D0

Tritanopia (blue-blind)

#008F9C

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #537bd2;
/* rgb */ color: rgb(83, 123, 210);
/* oklch */ color: oklch(59.5% 0.141 264.0);

Tailwind

colors: {
  custom: {
    50: '#8ea0e0',
    500: '#537bd2',
    950: '#000000',
  },
}

SCSS

$custom: #537bd2;
$custom-light: #8ea0e0;
$custom-dark: #000000;

JSON

{
  "hex": "#537bd2",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 210
  },
  "hsl": {
    "h": 221.102,
    "s": 58.525,
    "l": 57.451
  },
  "oklch": {
    "l": 0.59537,
    "c": 0.14054,
    "h": 264
  },
  "luminance": 0.20658
}

Semantic roles & 50–950 ramp

primary

#537BD2

secondary

#DACAA7

accent

#B146E2

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #537BD2

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

Preview Lab → · Contrast checker → · Palette generator →