#537CD0#537CD0

#537CD0 is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.6% C 0.137 H 263.2°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#537CD0
RGB	rgb(83, 124, 208)
HSL	hsl(220, 57%, 57%)
HSV	hsv(220, 60%, 82%)
CMYK	cmyk(60.1%, 40.4%, 0%, 18.4%)
CIE-LAB	lab(52.74, 11.44, -47.71)
CIE-LCH	lch(52.74, 49.06, 283.48°)
OKLab	oklab(59.63% -0.0161 -0.1357)
OKLCH	oklch(59.63% 0.137 263.2)
XYZ	xyz(22.1562, 20.8065, 62.5107)
Luminance	0.2081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537CD0 #D0A753

analogous

#53BBD0 #537CD0 #6953D0

triadic

#537CD0 #D0537C #7CD053

tetradic

#537CD0 #D053BB #D0A753 #53D069

square

#537CD0 #D053BB #D0A753 #53D069

split-complementary

#537CD0 #D06953 #BBD053

monochromatic

#244484 #315CB4 #537CD0 #83A1DD #B3C5EA

Accessibility & contrast

On white

4.07

#537CD0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#537CD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #537CD0

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537CD0	#FFFFFF	#000000	##000000
##537CD0	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5784D3

Deuteranopia (green-blind)

#4679CE

Tritanopia (blue-blind)

#008F9C

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #537cd0;
/* rgb */ color: rgb(83, 124, 208);
/* oklch */ color: oklch(59.6% 0.137 263.2);

Tailwind

colors: {
  custom: {
    50: '#8ea1df',
    500: '#537cd0',
    950: '#000000',
  },
}

SCSS

$custom: #537cd0;
$custom-light: #8ea1df;
$custom-dark: #000000;

JSON

{
  "hex": "#537cd0",
  "rgb": {
    "r": 83,
    "g": 124,
    "b": 208
  },
  "hsl": {
    "h": 220.32,
    "s": 57.078,
    "l": 57.059
  },
  "oklch": {
    "l": 0.59629,
    "c": 0.13661,
    "h": 263.2
  },
  "luminance": 0.20808
}

Semantic roles & 50–950 ramp

primary

#537CD0

secondary

#D9C8A6

accent

#AE47E0

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #537CD0

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

Preview Lab → · Contrast checker → · Palette generator →