#3FC9FF#3FC9FF

#3FC9FF is a light, vivid cyan. Relative luminance 0.500; OKLCH L 78.6% C 0.137 H 229.1°. Best body text is #000000 at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#3FC9FF
RGB	rgb(63, 201, 255)
HSL	hsl(197, 100%, 62%)
HSV	hsv(197, 75%, 100%)
CMYK	cmyk(75.3%, 21.2%, 0%, 0%)
CIE-LAB	lab(76.10, -19.24, -36.96)
CIE-LCH	lch(76.10, 41.67, 242.50°)
OKLab	oklab(78.57% -0.09 -0.1039)
OKLCH	oklch(78.57% 0.137 229.1)
XYZ	xyz(40.9792, 50.0451, 102.0883)
Luminance	0.5005 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FC9FF #FF753F

analogous

#3FFFD5 #3FC9FF #3F69FF

triadic

#3FC9FF #FF3FC9 #C9FF3F

tetradic

#3FC9FF #D53FFF #FF753F #69FF3F

square

#3FC9FF #D53FFF #FF753F #69FF3F

split-complementary

#3FC9FF #FF3F69 #FFD53F

monochromatic

#008DC4 #02B8FF #3FC9FF #7CDAFF #B9EBFF

Accessibility & contrast

On white

1.91

#3FC9FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.01

#3FC9FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FC9FF

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FC9FF	#FFFFFF	#000000	##000000
##3FC9FF	1.00	1.91	11.01	11.01
#FFFFFF	1.91	1.00	21.00	21.00
#000000	11.01	21.00	1.00	1.00
##000000	11.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADC6FF

Deuteranopia (green-blind)

#93B4FE

Tritanopia (blue-blind)

#00D8DB

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #3fc9ff;
/* rgb */ color: rgb(63, 201, 255);
/* oklch */ color: oklch(78.6% 0.137 229.1);

Tailwind

colors: {
  custom: {
    50: '#8ed9ff',
    500: '#3fc9ff',
    950: '#000000',
  },
}

SCSS

$custom: #3fc9ff;
$custom-light: #8ed9ff;
$custom-dark: #000000;

JSON

{
  "hex": "#3fc9ff",
  "rgb": {
    "r": 63,
    "g": 201,
    "b": 255
  },
  "hsl": {
    "h": 196.875,
    "s": 100,
    "l": 62.353
  },
  "oklch": {
    "l": 0.78569,
    "c": 0.13744,
    "h": 229.1
  },
  "luminance": 0.5005
}

Semantic roles & 50–950 ramp

primary

#3FC9FF

secondary

#C04E22

accent

#4100E6

background

#FCFEFF

surface

#F5FBFF

border

#CFD4D7

text

#0E1418

muted

#7F8386

Preview Lab

Preview with #3FC9FF

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

Preview Lab → · Contrast checker → · Palette generator →