#3BB5D9#3BB5D9

#3BB5D9 is a light, moderate cyan. Relative luminance 0.390; OKLCH L 72.2% C 0.116 H 221.9°. Best body text is #000000 at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#3BB5D9
RGB	rgb(59, 181, 217)
HSL	hsl(194, 68%, 54%)
HSV	hsv(194, 73%, 85%)
CMYK	cmyk(72.8%, 16.6%, 0%, 14.9%)
CIE-LAB	lab(68.74, -21.65, -27.76)
CIE-LCH	lch(68.74, 35.21, 232.05°)
OKLab	oklab(72.17% -0.0866 -0.0776)
OKLCH	oklch(72.17% 0.116 221.9)
XYZ	xyz(30.8467, 38.9837, 71.5311)
Luminance	0.3899 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3BB5D9 #D95F3B

analogous

#3BD9AE #3BB5D9 #3B66D9

triadic

#3BB5D9 #D93BB5 #B5D93B

tetradic

#3BB5D9 #AE3BD9 #D95F3B #66D93B

square

#3BB5D9 #AE3BD9 #D95F3B #66D93B

split-complementary

#3BB5D9 #D93B66 #D9AE3B

monochromatic

#196981 #2393B4 #3BB5D9 #6EC8E3 #A2DCED

Accessibility & contrast

On white

2.39

#3BB5D9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.80

#3BB5D9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3BB5D9

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3BB5D9	#FFFFFF	#000000	##000000
##3BB5D9	1.00	2.39	8.80	8.80
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.80	21.00	1.00	1.00
##000000	8.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B1DB

Deuteranopia (green-blind)

#8AA1D9

Tritanopia (blue-blind)

#00C0C1

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #3bb5d9;
/* rgb */ color: rgb(59, 181, 217);
/* oklch */ color: oklch(72.2% 0.116 221.9);

Tailwind

colors: {
  custom: {
    50: '#86cbe4',
    500: '#3bb5d9',
    950: '#000000',
  },
}

SCSS

$custom: #3bb5d9;
$custom-light: #86cbe4;
$custom-dark: #000000;

JSON

{
  "hex": "#3bb5d9",
  "rgb": {
    "r": 59,
    "g": 181,
    "b": 217
  },
  "hsl": {
    "h": 193.671,
    "s": 67.521,
    "l": 54.118
  },
  "oklch": {
    "l": 0.72167,
    "c": 0.11632,
    "h": 221.9
  },
  "luminance": 0.38987
}

Semantic roles & 50–950 ramp

primary

#3BB5D9

secondary

#DAA696

accent

#653DEA

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #3BB5D9

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

Preview Lab → · Contrast checker → · Palette generator →