#537CD2#537CD2

#537CD2 is a mid, vivid blue. Relative luminance 0.209; OKLCH L 59.7% C 0.139 H 263.5°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#537CD2
RGB	rgb(83, 124, 210)
HSL	hsl(221, 59%, 57%)
HSV	hsv(221, 60%, 82%)
CMYK	cmyk(60.5%, 41%, 0%, 17.6%)
CIE-LAB	lab(52.85, 12.11, -48.67)
CIE-LCH	lch(52.85, 50.16, 283.97°)
OKLab	oklab(59.75% -0.0157 -0.1385)
OKLCH	oklch(59.75% 0.139 263.5)
XYZ	xyz(22.4038, 20.9055, 63.8148)
Luminance	0.2091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CD2 #D2A953

analogous

#53BBD2 #537CD2 #6A53D2

triadic

#537CD2 #D2537C #7CD253

tetradic

#537CD2 #D253BB #D2A953 #53D26A

square

#537CD2 #D253BB #D2A953 #53D26A

split-complementary

#537CD2 #D26A53 #BBD253

monochromatic

#234487 #305CB8 #537CD2 #84A1DF #B4C6EB

Accessibility & contrast

On white

4.05

#537CD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#537CD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CD2

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CD2	#FFFFFF	#000000	##000000
##537CD2	1.00	4.05	5.18	5.18
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5684D5

Deuteranopia (green-blind)

#4479D0

Tritanopia (blue-blind)

#008F9D

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537cd2;
/* rgb */ color: rgb(83, 124, 210);
/* oklch */ color: oklch(59.7% 0.139 263.5);

Tailwind

colors: {
  custom: {
    50: '#8ea1e0',
    500: '#537cd2',
    950: '#000000',
  },
}

SCSS

$custom: #537cd2;
$custom-light: #8ea1e0;
$custom-dark: #000000;

JSON

{
  "hex": "#537cd2",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 210
  },
  "hsl": {
    "h": 220.63,
    "s": 58.525,
    "l": 57.451
  },
  "oklch": {
    "l": 0.59749,
    "c": 0.13937,
    "h": 263.5
  },
  "luminance": 0.20907
}

Semantic roles & 50–950 ramp

primary

#537CD2

secondary

#DAC9A7

accent

#AF46E2

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #537CD2

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

Preview Lab → · Contrast checker → · Palette generator →