#3BB9E1#3BB9E1

#3BB9E1 is a light, vivid cyan. Relative luminance 0.411; OKLCH L 73.5% C 0.121 H 223.7°. Best body text is #000000 at 9.21:1 contrast (WCAG AA passes).

Color values

HEX	#3BB9E1
RGB	rgb(59, 185, 225)
HSL	hsl(194, 73%, 56%)
HSV	hsv(194, 74%, 88%)
CMYK	cmyk(73.8%, 17.8%, 0%, 11.8%)
CIE-LAB	lab(70.22, -21.14, -29.86)
CIE-LCH	lch(70.22, 36.58, 234.70°)
OKLab	oklab(73.45% -0.0875 -0.0836)
OKLCH	oklch(73.45% 0.121 223.7)
XYZ	xyz(32.7376, 41.0601, 77.4196)
Luminance	0.4106 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3BB9E1 #E1633B

analogous

#3BE1B6 #3BB9E1 #3B66E1

triadic

#3BB9E1 #E13BB9 #B9E13B

tetradic

#3BB9E1 #B63BE1 #E1633B #66E13B

square

#3BB9E1 #B63BE1 #E1633B #66E13B

split-complementary

#3BB9E1 #E13B66 #E1B63B

monochromatic

#15708C #1E9AC1 #3BB9E1 #70CCE9 #A5DFF1

Accessibility & contrast

On white

2.28

#3BB9E1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.21

#3BB9E1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3BB9E1

9.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3BB9E1	#FFFFFF	#000000	##000000
##3BB9E1	1.00	2.28	9.21	9.21
#FFFFFF	2.28	1.00	21.00	21.00
#000000	9.21	21.00	1.00	1.00
##000000	9.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B5E3

Deuteranopia (green-blind)

#8CA5E1

Tritanopia (blue-blind)

#00C5C6

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #3bb9e1;
/* rgb */ color: rgb(59, 185, 225);
/* oklch */ color: oklch(73.5% 0.121 223.7);

Tailwind

colors: {
  custom: {
    50: '#88ceea',
    500: '#3bb9e1',
    950: '#000000',
  },
}

SCSS

$custom: #3bb9e1;
$custom-light: #88ceea;
$custom-dark: #000000;

JSON

{
  "hex": "#3bb9e1",
  "rgb": {
    "r": 59,
    "g": 185,
    "b": 225
  },
  "hsl": {
    "h": 194.458,
    "s": 73.451,
    "l": 55.686
  },
  "oklch": {
    "l": 0.73454,
    "c": 0.12101,
    "h": 223.7
  },
  "luminance": 0.41064
}

Semantic roles & 50–950 ramp

primary

#3BB9E1

secondary

#DEAA99

accent

#6438F0

background

#F9FCFE

surface

#F1F9FD

border

#CBD2D5

text

#0D1316

muted

#7E8284

Preview Lab

Preview with #3BB9E1

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

Preview Lab → · Contrast checker → · Palette generator →