#3FC4E9#3FC4E9

#3FC4E9 is a light, vivid cyan. Relative luminance 0.464; OKLCH L 76.5% C 0.123 H 220.7°. Best body text is #000000 at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#3FC4E9
RGB	rgb(63, 196, 233)
HSL	hsl(193, 79%, 58%)
HSV	hsv(193, 73%, 91%)
CMYK	cmyk(73%, 15.9%, 0%, 8.6%)
CIE-LAB	lab(73.81, -23.73, -28.66)
CIE-LCH	lch(73.81, 37.21, 230.38°)
OKLab	oklab(76.46% -0.0933 -0.0801)
OKLCH	oklch(76.46% 0.123 220.7)
XYZ	xyz(36.4917, 46.4155, 84.1108)
Luminance	0.4642 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FC4E9 #E9643F

analogous

#3FE9B9 #3FC4E9 #3F6FE9

triadic

#3FC4E9 #E93FC4 #C4E93F

tetradic

#3FC4E9 #B93FE9 #E9643F #6FE93F

square

#3FC4E9 #B93FE9 #E9643F #6FE93F

split-complementary

#3FC4E9 #E93F6F #E9B93F

monochromatic

#127E9C #18AAD3 #3FC4E9 #76D5EF #ADE6F6

Accessibility & contrast

On white

2.04

#3FC4E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.28

#3FC4E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FC4E9

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FC4E9	#FFFFFF	#000000	##000000
##3FC4E9	1.00	2.04	10.28	10.28
#FFFFFF	2.04	1.00	21.00	21.00
#000000	10.28	21.00	1.00	1.00
##000000	10.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEBFEB

Deuteranopia (green-blind)

#97AEE9

Tritanopia (blue-blind)

#00D0D0

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #3fc4e9;
/* rgb */ color: rgb(63, 196, 233);
/* oklch */ color: oklch(76.5% 0.123 220.7);

Tailwind

colors: {
  custom: {
    50: '#8bd6f0',
    500: '#3fc4e9',
    950: '#000000',
  },
}

SCSS

$custom: #3fc4e9;
$custom-light: #8bd6f0;
$custom-dark: #000000;

JSON

{
  "hex": "#3fc4e9",
  "rgb": {
    "r": 63,
    "g": 196,
    "b": 233
  },
  "hsl": {
    "h": 193.059,
    "s": 79.439,
    "l": 58.039
  },
  "oklch": {
    "l": 0.76463,
    "c": 0.12296,
    "h": 220.7
  },
  "luminance": 0.4642
}

Semantic roles & 50–950 ramp

primary

#3FC4E9

secondary

#E4AFA0

accent

#5D32F6

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #3FC4E9

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

Preview Lab → · Contrast checker → · Palette generator →