#3BB9D4#3BB9D4

#3BB9D4 is a light, moderate cyan. Relative luminance 0.404; OKLCH L 72.9% C 0.113 H 215.3°. Best body text is #000000 at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#3BB9D4
RGB	rgb(59, 185, 212)
HSL	hsl(191, 64%, 53%)
HSV	hsv(191, 72%, 83%)
CMYK	cmyk(72.2%, 12.7%, 0%, 16.9%)
CIE-LAB	lab(69.74, -25.27, -23.49)
CIE-LCH	lch(69.74, 34.50, 222.91°)
OKLab	oklab(72.91% -0.0924 -0.0655)
OKLCH	oklch(72.91% 0.113 215.3)
XYZ	xyz(31.0312, 40.3776, 68.4328)
Luminance	0.4038 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3BB9D4 #D4563B

analogous

#3BD4A2 #3BB9D4 #3B6CD4

triadic

#3BB9D4 #D43BB9 #B9D43B

tetradic

#3BB9D4 #A23BD4 #D4563B #6CD43B

square

#3BB9D4 #A23BD4 #D4563B #6CD43B

split-complementary

#3BB9D4 #D43B6C #D4A23B

monochromatic

#1B697A #2694AC #3BB9D4 #6DCBDF #9FDDEA

Accessibility & contrast

On white

2.31

#3BB9D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.08

#3BB9D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3BB9D4

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3BB9D4	#FFFFFF	#000000	##000000
##3BB9D4	1.00	2.31	9.08	9.08
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.08	21.00	1.00	1.00
##000000	9.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B3D6

Deuteranopia (green-blind)

#91A4D4

Tritanopia (blue-blind)

#00C3C1

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #3bb9d4;
/* rgb */ color: rgb(59, 185, 212);
/* oklch */ color: oklch(72.9% 0.113 215.3);

Tailwind

colors: {
  custom: {
    50: '#86cee1',
    500: '#3bb9d4',
    950: '#000000',
  },
}

SCSS

$custom: #3bb9d4;
$custom-light: #86cee1;
$custom-dark: #000000;

JSON

{
  "hex": "#3bb9d4",
  "rgb": {
    "r": 59,
    "g": 185,
    "b": 212
  },
  "hsl": {
    "h": 190.588,
    "s": 64.017,
    "l": 53.137
  },
  "oklch": {
    "l": 0.72909,
    "c": 0.11329,
    "h": 215.3
  },
  "luminance": 0.40381
}

Semantic roles & 50–950 ramp

primary

#3BB9D4

secondary

#D6A094

accent

#5E41E7

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #3BB9D4

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

Preview Lab → · Contrast checker → · Palette generator →