Neon Blue#04D9FF

#04D9FF is a light, vivid teal. Relative luminance 0.569; OKLCH L 81.6% C 0.145 H 216.5°. Best body text is #000000 at 12.37:1 contrast (WCAG AA passes).

Neon Blue — editorial page

Color values

HEX	#04D9FF
RGB	rgb(4, 217, 255)
HSL	hsl(189, 100%, 51%)
HSV	hsv(189, 98%, 100%)
CMYK	cmyk(98.4%, 14.9%, 0%, 0%)
CIE-LAB	lab(80.10, -30.69, -30.83)
CIE-LCH	lch(80.10, 43.50, 225.13°)
OKLab	oklab(81.61% -0.1165 -0.0864)
OKLCH	oklch(81.61% 0.145 216.5)
XYZ	xyz(42.9050, 56.8657, 103.3032)
Luminance	0.5687 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04D9FF #FF2A04

analogous

#04FFA8 #04D9FF #045BFF

triadic

#04D9FF #FF04D9 #D9FF04

tetradic

#04D9FF #A804FF #FF2A04 #5BFF04

square

#04D9FF #A804FF #FF2A04 #5BFF04

split-complementary

#04D9FF #FF045B #FFA804

monochromatic

#007489 #00A8C6 #04D9FF #41E2FF #7EECFF

Accessibility & contrast

On white

1.70

#04D9FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.37

#04D9FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #04D9FF

12.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04D9FF	#FFFFFF	#000000	##000000
##04D9FF	1.00	1.70	12.37	12.37
#FFFFFF	1.70	1.00	21.00	21.00
#000000	12.37	21.00	1.00	1.00
##000000	12.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0D2FF

Deuteranopia (green-blind)

#A4BEFF

Tritanopia (blue-blind)

#00E6E5

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #04d9ff;
/* rgb */ color: rgb(4, 217, 255);
/* oklch */ color: oklch(81.6% 0.145 216.5);

Tailwind

colors: {
  custom: {
    50: '#85e5ff',
    500: '#04d9ff',
    950: '#000000',
  },
}

SCSS

$custom: #04d9ff;
$custom-light: #85e5ff;
$custom-dark: #000000;

JSON

{
  "hex": "#04d9ff",
  "rgb": {
    "r": 4,
    "g": 217,
    "b": 255
  },
  "hsl": {
    "h": 189.084,
    "s": 100,
    "l": 50.784
  },
  "oklch": {
    "l": 0.81613,
    "c": 0.14503,
    "h": 216.5
  },
  "luminance": 0.56872
}

Semantic roles & 50–950 ramp

primary

#04D9FF

secondary

#8E2B19

accent

#4929FF

background

#FCFEFF

surface

#F5FCFF

border

#CFD5D7

text

#0E1518

muted

#7F8486

Preview Lab

Preview with #04D9FF

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

Preview Lab → · Contrast checker → · Palette generator →