#539BB9#539BB9

#539BB9 is a light, moderate cyan. Relative luminance 0.288; OKLCH L 65.5% C 0.085 H 227.4°. Best body text is #000000 at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#539BB9
RGB	rgb(83, 155, 185)
HSL	hsl(198, 42%, 53%)
HSV	hsv(198, 55%, 73%)
CMYK	cmyk(55.1%, 16.2%, 0%, 27.5%)
CIE-LAB	lab(60.59, -13.91, -22.43)
CIE-LCH	lch(60.59, 26.40, 238.20°)
OKLab	oklab(65.46% -0.0574 -0.0624)
OKLCH	oklch(65.46% 0.085 227.4)
XYZ	xyz(24.0423, 28.7823, 50.1781)
Luminance	0.2878 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#539BB9 #B97153

analogous

#53B9A4 #539BB9 #5368B9

triadic

#539BB9 #B9539B #9BB953

tetradic

#539BB9 #A453B9 #B97153 #68B953

square

#539BB9 #A453B9 #B97153 #68B953

split-complementary

#539BB9 #B95368 #B9A453

monochromatic

#2A5567 #3C7993 #539BB9 #7EB4CB #AACEDC

Accessibility & contrast

On white

3.11

#539BB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.76

#539BB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #539BB9

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##539BB9	#FFFFFF	#000000	##000000
##539BB9	1.00	3.11	6.76	6.76
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.76	21.00	1.00	1.00
##000000	6.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B98BB

Deuteranopia (green-blind)

#7C8DB9

Tritanopia (blue-blind)

#00A4A5

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #539bb9;
/* rgb */ color: rgb(83, 155, 185);
/* oklch */ color: oklch(65.5% 0.085 227.4);

Tailwind

colors: {
  custom: {
    50: '#8bb8ce',
    500: '#539bb9',
    950: '#000000',
  },
}

SCSS

$custom: #539bb9;
$custom-light: #8bb8ce;
$custom-dark: #000000;

JSON

{
  "hex": "#539bb9",
  "rgb": {
    "r": 83,
    "g": 155,
    "b": 185
  },
  "hsl": {
    "h": 197.647,
    "s": 42.149,
    "l": 52.549
  },
  "oklch": {
    "l": 0.65456,
    "c": 0.08478,
    "h": 227.4
  },
  "luminance": 0.28784
}

Semantic roles & 50–950 ramp

primary

#539BB9

secondary

#CAAB9E

accent

#7A56D2

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0D1113

muted

#7D8082

Preview Lab

Preview with #539BB9

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

Preview Lab → · Contrast checker → · Palette generator →