#3B9BBD#3B9BBD

#3B9BBD is a light, moderate cyan. Relative luminance 0.280; OKLCH L 64.8% C 0.101 H 225.3°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#3B9BBD
RGB	rgb(59, 155, 189)
HSL	hsl(196, 52%, 49%)
HSV	hsv(196, 69%, 74%)
CMYK	cmyk(68.8%, 18%, 0%, 25.9%)
CIE-LAB	lab(59.93, -17.03, -25.77)
CIE-LCH	lch(59.93, 30.89, 236.54°)
OKLab	oklab(64.75% -0.0713 -0.0721)
OKLCH	oklch(64.75% 0.101 225.3)
XYZ	xyz(22.7066, 28.0441, 52.3506)
Luminance	0.2805 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B9BBD #BD5D3B

analogous

#3BBD9E #3B9BBD #3B5ABD

triadic

#3B9BBD #BD3B9B #9BBD3B

tetradic

#3B9BBD #9E3BBD #BD5D3B #5ABD3B

square

#3B9BBD #9E3BBD #BD5D3B #5ABD3B

split-complementary

#3B9BBD #BD3B5A #BD9E3B

monochromatic

#1E4E60 #2C758E #3B9BBD #66B4CF #95CBDE

Accessibility & contrast

On white

3.18

#3B9BBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#3B9BBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B9BBD

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B9BBD	#FFFFFF	#000000	##000000
##3B9BBD	1.00	3.18	6.61	6.61
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8898BF

Deuteranopia (green-blind)

#768BBD

Tritanopia (blue-blind)

#00A5A6

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #3b9bbd;
/* rgb */ color: rgb(59, 155, 189);
/* oklch */ color: oklch(64.8% 0.101 225.3);

Tailwind

colors: {
  custom: {
    50: '#81b8d1',
    500: '#3b9bbd',
    950: '#000000',
  },
}

SCSS

$custom: #3b9bbd;
$custom-light: #81b8d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3b9bbd",
  "rgb": {
    "r": 59,
    "g": 155,
    "b": 189
  },
  "hsl": {
    "h": 195.692,
    "s": 52.419,
    "l": 48.627
  },
  "oklch": {
    "l": 0.64752,
    "c": 0.10141,
    "h": 225.3
  },
  "luminance": 0.28047
}

Semantic roles & 50–950 ramp

primary

#3B9BBD

secondary

#C99B8B

accent

#724CDC

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1114

muted

#7D8082

Preview Lab

Preview with #3B9BBD

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

Preview Lab → · Contrast checker → · Palette generator →