#539BDB#539BDB

#539BDB is a light, moderate cyan. Relative luminance 0.304; OKLCH L 67.0% C 0.120 H 247.5°. Best body text is #000000 at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#539BDB
RGB	rgb(83, 155, 219)
HSL	hsl(208, 65%, 59%)
HSV	hsv(208, 62%, 86%)
CMYK	cmyk(62.1%, 29.2%, 0%, 14.1%)
CIE-LAB	lab(61.99, -3.20, -39.28)
CIE-LCH	lch(61.99, 39.41, 265.34°)
OKLab	oklab(67.03% -0.0459 -0.1107)
OKLCH	oklch(67.03% 0.12 247.5)
XYZ	xyz(28.0701, 30.3935, 71.3913)
Luminance	0.3040 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#539BDB #DB9353

analogous

#53DBD7 #539BDB #5357DB

triadic

#539BDB #DB539B #9BDB53

tetradic

#539BDB #D753DB #DB9353 #57DB53

square

#539BDB #D753DB #DB9353 #57DB53

split-complementary

#539BDB #DB5357 #DBD753

monochromatic

#1F5D95 #2A7DC7 #539BDB #86B8E6 #B8D6F0

Accessibility & contrast

On white

2.97

#539BDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.08

#539BDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #539BDB

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##539BDB	#FFFFFF	#000000	##000000
##539BDB	1.00	2.97	7.08	7.08
#FFFFFF	2.97	1.00	21.00	21.00
#000000	7.08	21.00	1.00	1.00
##000000	7.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F9DDE

Deuteranopia (green-blind)

#6D90DA

Tritanopia (blue-blind)

#00AAB1

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #539bdb;
/* rgb */ color: rgb(83, 155, 219);
/* oklch */ color: oklch(67.0% 0.120 247.5);

Tailwind

colors: {
  custom: {
    50: '#8fb8e6',
    500: '#539bdb',
    950: '#000000',
  },
}

SCSS

$custom: #539bdb;
$custom-light: #8fb8e6;
$custom-dark: #000000;

JSON

{
  "hex": "#539bdb",
  "rgb": {
    "r": 83,
    "g": 155,
    "b": 219
  },
  "hsl": {
    "h": 208.235,
    "s": 65.385,
    "l": 59.216
  },
  "oklch": {
    "l": 0.6703,
    "c": 0.1199,
    "h": 247.5
  },
  "luminance": 0.30396
}

Semantic roles & 50–950 ramp

primary

#539BDB

secondary

#DFC3AA

accent

#8F3FE8

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #539BDB

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

Preview Lab → · Contrast checker → · Palette generator →