#539BD0#539BD0

#539BD0 is a light, moderate cyan. Relative luminance 0.298; OKLCH L 66.5% C 0.107 H 242.6°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#539BD0
RGB	rgb(83, 155, 208)
HSL	hsl(205, 57%, 57%)
HSV	hsv(205, 60%, 82%)
CMYK	cmyk(60.1%, 25.5%, 0%, 18.4%)
CIE-LAB	lab(61.51, -6.76, -33.91)
CIE-LCH	lch(61.51, 34.58, 258.73°)
OKLab	oklab(66.49% -0.0494 -0.0952)
OKLCH	oklch(66.49% 0.107 242.6)
XYZ	xyz(26.6696, 29.8332, 64.0152)
Luminance	0.2984 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#539BD0 #D08853

analogous

#53D0C7 #539BD0 #535DD0

triadic

#539BD0 #D0539B #9BD053

tetradic

#539BD0 #C753D0 #D08853 #5DD053

square

#539BD0 #C753D0 #D08853 #5DD053

split-complementary

#539BD0 #D0535D #D0C753

monochromatic

#245C84 #317DB4 #539BD0 #83B7DD #B3D3EA

Accessibility & contrast

On white

3.01

#539BD0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.97

#539BD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #539BD0

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##539BD0	#FFFFFF	#000000	##000000
##539BD0	1.00	3.01	6.97	6.97
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.97	21.00	1.00	1.00
##000000	6.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#849CD2

Deuteranopia (green-blind)

#738FCF

Tritanopia (blue-blind)

#00A8AD

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #539bd0;
/* rgb */ color: rgb(83, 155, 208);
/* oklch */ color: oklch(66.5% 0.107 242.6);

Tailwind

colors: {
  custom: {
    50: '#8eb8de',
    500: '#539bd0',
    950: '#000000',
  },
}

SCSS

$custom: #539bd0;
$custom-light: #8eb8de;
$custom-dark: #000000;

JSON

{
  "hex": "#539bd0",
  "rgb": {
    "r": 83,
    "g": 155,
    "b": 208
  },
  "hsl": {
    "h": 205.44,
    "s": 57.078,
    "l": 57.059
  },
  "oklch": {
    "l": 0.66491,
    "c": 0.10724,
    "h": 242.6
  },
  "luminance": 0.29836
}

Semantic roles & 50–950 ramp

primary

#539BD0

secondary

#D9BCA6

accent

#8847E0

background

#F9FBFD

surface

#F1F6FB

border

#CBD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #539BD0

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

Preview Lab → · Contrast checker → · Palette generator →