#3BB5CF#3BB5CF

#3BB5CF is a light, moderate cyan. Relative luminance 0.385; OKLCH L 71.8% C 0.111 H 215.1°. Best body text is #000000 at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#3BB5CF
RGB	rgb(59, 181, 207)
HSL	hsl(191, 61%, 52%)
HSV	hsv(191, 71%, 81%)
CMYK	cmyk(71.5%, 12.6%, 0%, 18.8%)
CIE-LAB	lab(68.37, -24.82, -22.84)
CIE-LCH	lch(68.37, 33.72, 222.62°)
OKLab	oklab(71.75% -0.0905 -0.0636)
OKLCH	oklch(71.75% 0.111 215.1)
XYZ	xyz(29.5852, 38.4791, 64.8874)
Luminance	0.3848 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3BB5CF #CF553B

analogous

#3BCF9F #3BB5CF #3B6BCF

triadic

#3BB5CF #CF3BB5 #B5CF3B

tetradic

#3BB5CF #9F3BCF #CF553B #6BCF3B

square

#3BB5CF #9F3BCF #CF553B #6BCF3B

split-complementary

#3BB5CF #CF3B6B #CF9F3B

monochromatic

#1C6473 #288FA5 #3BB5CF #6CC8DB #9DDAE7

Accessibility & contrast

On white

2.41

#3BB5CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.70

#3BB5CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3BB5CF

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3BB5CF	#FFFFFF	#000000	##000000
##3BB5CF	1.00	2.41	8.70	8.70
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.70	21.00	1.00	1.00
##000000	8.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3AFD0

Deuteranopia (green-blind)

#8EA0CF

Tritanopia (blue-blind)

#00BFBD

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #3bb5cf;
/* rgb */ color: rgb(59, 181, 207);
/* oklch */ color: oklch(71.8% 0.111 215.1);

Tailwind

colors: {
  custom: {
    50: '#85cbdd',
    500: '#3bb5cf',
    950: '#000000',
  },
}

SCSS

$custom: #3bb5cf;
$custom-light: #85cbdd;
$custom-dark: #000000;

JSON

{
  "hex": "#3bb5cf",
  "rgb": {
    "r": 59,
    "g": 181,
    "b": 207
  },
  "hsl": {
    "h": 190.541,
    "s": 60.656,
    "l": 52.157
  },
  "oklch": {
    "l": 0.71751,
    "c": 0.11063,
    "h": 215.1
  },
  "luminance": 0.38483
}

Semantic roles & 50–950 ramp

primary

#3BB5CF

secondary

#D39E93

accent

#6044E4

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #3BB5CF

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

Preview Lab → · Contrast checker → · Palette generator →