#04CEFF#04CEFF

#04CEFF is a light, vivid cyan. Relative luminance 0.514; OKLCH L 79.0% C 0.147 H 223.2°. Best body text is #000000 at 11.28:1 contrast (WCAG AA passes).

Color values

HEX#04CEFF
RGBrgb(4, 206, 255)
HSLhsl(192, 100%, 51%)
HSVhsv(192, 98%, 100%)
CMYKcmyk(98.4%, 19.2%, 0%, 0%)
CIE-LABlab(76.91, -25.27, -35.75)
CIE-LCHlch(76.91, 43.78, 234.75°)
OKLaboklab(79.04% -0.1072 -0.1005)
OKLCHoklch(79.04% 0.147 223.2)
XYZxyz(40.1637, 51.3830, 102.3894)
Luminance0.5139 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#04CEFF #FF3504
analogous
#04FFB2 #04CEFF #0450FF
triadic
#04CEFF #FF04CE #CEFF04
tetradic
#04CEFF #B204FF #FF3504 #50FF04
square
#04CEFF #B204FF #FF3504 #50FF04
split-complementary
#04CEFF #FF0450 #FFB204
monochromatic
#006E89 #009FC6 #04CEFF #41DAFF #7EE6FF

Accessibility & contrast

On white

1.86
#04CEFF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.28
#04CEFF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #04CEFF
11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##04CEFF#FFFFFF#000000##000000
##04CEFF1.001.8611.2811.28
#FFFFFF1.861.0021.0021.00
#00000011.2821.001.001.00
##00000011.2821.001.001.00

Color blindness preview

Protanopia (red-blind)
#B2C9FF
Deuteranopia (green-blind)
#96B5FE
Tritanopia (blue-blind)
#00DDDE
Achromatopsia (no color)
#BEBEBE

Design tokens & code

CSS
--color: #04ceff;
/* rgb */ color: rgb(4, 206, 255);
/* oklch */ color: oklch(79.0% 0.147 223.2);
Tailwind
colors: {
  custom: {
    50: '#84ddff',
    500: '#04ceff',
    950: '#000000',
  },
}
SCSS
$custom: #04ceff;
$custom-light: #84ddff;
$custom-dark: #000000;
JSON
{
  "hex": "#04ceff",
  "rgb": {
    "r": 4,
    "g": 206,
    "b": 255
  },
  "hsl": {
    "h": 191.713,
    "s": 100,
    "l": 50.784
  },
  "oklch": {
    "l": 0.7904,
    "c": 0.147,
    "h": 223.2
  },
  "luminance": 0.51388
}

Semantic roles & 50–950 ramp

primary
#04CEFF
secondary
#8E3019
accent
#5329FF
background
#FCFEFF
surface
#F4FCFF
border
#CED5D7
text
#0E1518
muted
#7F8486

Preview Lab

Preview with #04CEFF

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

Preview Lab → · Contrast checker → · Palette generator →

#04CEFF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva