#3F9FBC#3F9FBC

#3F9FBC is a light, moderate cyan. Relative luminance 0.295; OKLCH L 65.8% C 0.098 H 221.3°. Best body text is #000000 at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F9FBC
RGB	rgb(63, 159, 188)
HSL	hsl(194, 50%, 49%)
HSV	hsv(194, 66%, 74%)
CMYK	cmyk(66.5%, 15.4%, 0%, 26.3%)
CIE-LAB	lab(61.20, -18.86, -23.24)
CIE-LCH	lch(61.20, 29.93, 230.94°)
OKLab	oklab(65.79% -0.0737 -0.0648)
OKLCH	oklch(65.79% 0.098 221.3)
XYZ	xyz(23.5214, 29.4813, 52.0180)
Luminance	0.2948 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9FBC #BC5C3F

analogous

#3FBC9B #3F9FBC #3F61BC

triadic

#3F9FBC #BC3F9F #9FBC3F

tetradic

#3F9FBC #9B3FBC #BC5C3F #61BC3F

square

#3F9FBC #9B3FBC #BC5C3F #61BC3F

split-complementary

#3F9FBC #BC3F61 #BC9B3F

monochromatic

#205160 #30788E #3F9FBC #6BB7CD #99CDDD

Accessibility & contrast

On white

3.04

#3F9FBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.90

#3F9FBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9FBC

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9FBC	#FFFFFF	#000000	##000000
##3F9FBC	1.00	3.04	6.90	6.90
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.90	21.00	1.00	1.00
##000000	6.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E9BBE

Deuteranopia (green-blind)

#7C8EBC

Tritanopia (blue-blind)

#00A8A8

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #3f9fbc;
/* rgb */ color: rgb(63, 159, 188);
/* oklch */ color: oklch(65.8% 0.098 221.3);

Tailwind

colors: {
  custom: {
    50: '#82bbd0',
    500: '#3f9fbc',
    950: '#000000',
  },
}

SCSS

$custom: #3f9fbc;
$custom-light: #82bbd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9fbc",
  "rgb": {
    "r": 63,
    "g": 159,
    "b": 188
  },
  "hsl": {
    "h": 193.92,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.65792,
    "c": 0.09812,
    "h": 221.3
  },
  "luminance": 0.29484
}

Semantic roles & 50–950 ramp

primary

#3F9FBC

secondary

#C99C8E

accent

#6F4ED9

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #3F9FBC

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

Preview Lab → · Contrast checker → · Palette generator →