#3BB9E0#3BB9E0

#3BB9E0 is a light, vivid cyan. Relative luminance 0.410; OKLCH L 73.4% C 0.120 H 223.1°. Best body text is #000000 at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#3BB9E0
RGB	rgb(59, 185, 224)
HSL	hsl(194, 73%, 55%)
HSV	hsv(194, 74%, 88%)
CMYK	cmyk(73.7%, 17.4%, 0%, 12.2%)
CIE-LAB	lab(70.18, -21.46, -29.37)
CIE-LCH	lch(70.18, 36.38, 233.84°)
OKLab	oklab(73.41% -0.0878 -0.0822)
OKLCH	oklch(73.41% 0.12 223.1)
XYZ	xyz(32.6016, 41.0057, 76.7032)
Luminance	0.4101 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3BB9E0 #E0623B

analogous

#3BE0B5 #3BB9E0 #3B66E0

triadic

#3BB9E0 #E03BB9 #B9E03B

tetradic

#3BB9E0 #B53BE0 #E0623B #66E03B

square

#3BB9E0 #B53BE0 #E0623B #66E03B

split-complementary

#3BB9E0 #E03B66 #E0B53B

monochromatic

#166F8B #1E99C0 #3BB9E0 #70CCE8 #A5DFF1

Accessibility & contrast

On white

2.28

#3BB9E0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.20

#3BB9E0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3BB9E0

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3BB9E0	#FFFFFF	#000000	##000000
##3BB9E0	1.00	2.28	9.20	9.20
#FFFFFF	2.28	1.00	21.00	21.00
#000000	9.20	21.00	1.00	1.00
##000000	9.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3B5E2

Deuteranopia (green-blind)

#8CA5E0

Tritanopia (blue-blind)

#00C5C6

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #3bb9e0;
/* rgb */ color: rgb(59, 185, 224);
/* oklch */ color: oklch(73.4% 0.120 223.1);

Tailwind

colors: {
  custom: {
    50: '#88cee9',
    500: '#3bb9e0',
    950: '#000000',
  },
}

SCSS

$custom: #3bb9e0;
$custom-light: #88cee9;
$custom-dark: #000000;

JSON

{
  "hex": "#3bb9e0",
  "rgb": {
    "r": 59,
    "g": 185,
    "b": 224
  },
  "hsl": {
    "h": 194.182,
    "s": 72.687,
    "l": 55.49
  },
  "oklch": {
    "l": 0.7341,
    "c": 0.12032,
    "h": 223.1
  },
  "luminance": 0.4101
}

Semantic roles & 50–950 ramp

primary

#3BB9E0

secondary

#DEA999

accent

#6438EF

background

#F9FCFE

surface

#F1F9FD

border

#CBD2D5

text

#0D1316

muted

#7E8284

Preview Lab

Preview with #3BB9E0

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

Preview Lab → · Contrast checker → · Palette generator →