#3FC9E8#3FC9E8

#3FC9E8 is a light, vivid cyan. Relative luminance 0.487; OKLCH L 77.6% C 0.122 H 216.3°. Best body text is #000000 at 10.73:1 contrast (WCAG AA passes).

Color values

HEX	#3FC9E8
RGB	rgb(63, 201, 232)
HSL	hsl(191, 79%, 58%)
HSV	hsv(191, 73%, 91%)
CMYK	cmyk(72.8%, 13.4%, 0%, 9%)
CIE-LAB	lab(75.23, -26.54, -25.94)
CIE-LCH	lch(75.23, 37.12, 224.34°)
OKLab	oklab(77.59% -0.0984 -0.0724)
OKLCH	oklch(77.59% 0.122 216.3)
XYZ	xyz(37.4959, 48.6518, 83.7429)
Luminance	0.4866 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FC9E8 #E85E3F

analogous

#3FE8B3 #3FC9E8 #3F74E8

triadic

#3FC9E8 #E83FC9 #C9E83F

tetradic

#3FC9E8 #B33FE8 #E85E3F #74E83F

square

#3FC9E8 #B33FE8 #E85E3F #74E83F

split-complementary

#3FC9E8 #E83F74 #E8B33F

monochromatic

#12819A #19AFD1 #3FC9E8 #76D8EF #ACE8F5

Accessibility & contrast

On white

1.96

#3FC9E8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.73

#3FC9E8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FC9E8

10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FC9E8	#FFFFFF	#000000	##000000
##3FC9E8	1.00	1.96	10.73	10.73
#FFFFFF	1.96	1.00	21.00	21.00
#000000	10.73	21.00	1.00	1.00
##000000	10.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4C3EA

Deuteranopia (green-blind)

#9DB2E8

Tritanopia (blue-blind)

#00D4D3

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #3fc9e8;
/* rgb */ color: rgb(63, 201, 232);
/* oklch */ color: oklch(77.6% 0.122 216.3);

Tailwind

colors: {
  custom: {
    50: '#8bd9ef',
    500: '#3fc9e8',
    950: '#000000',
  },
}

SCSS

$custom: #3fc9e8;
$custom-light: #8bd9ef;
$custom-dark: #000000;

JSON

{
  "hex": "#3fc9e8",
  "rgb": {
    "r": 63,
    "g": 201,
    "b": 232
  },
  "hsl": {
    "h": 191.006,
    "s": 78.605,
    "l": 57.843
  },
  "oklch": {
    "l": 0.77592,
    "c": 0.12216,
    "h": 216.3
  },
  "luminance": 0.48656
}

Semantic roles & 50–950 ramp

primary

#3FC9E8

secondary

#E3ACA0

accent

#5633F5

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #3FC9E8

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

Preview Lab → · Contrast checker → · Palette generator →