#040F00 Color

#040F00 is rgb(4, 15, 0) in RGB, hsl(104, 100%, 3%) in HSL, and about cmyk(73%, 0%, 100%, 94%) in CMYK. It has no registered color name of its own — the closest is Smoky Black (#100C08), clearly related but distinguishable side by side at ΔE 6.39. White text is the more readable choice on this background.

#040F00

HEX#040F00

RGBrgb(4, 15, 0)

HSLhsl(104, 100%, 3%)

HSVhsv(104, 100%, 6%)

CMYKcmyk(73%, 0%, 100%, 94%)

OKLCHoklch(15.1% 0.044 134.7)

LABlab(3.34% -4.82 4.85)

LCHlch(3.34% 6.83 134.83)

What #040F00 Is Called

Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #040F00, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Smoky Black#100C08ΔE 6.39 Registration Black#000200ΔE 6.6 Jet Black#0A0A0AΔE 6.86 Vampire Black#080808ΔE 6.93 Vantablack#000100ΔE 7.1 Soft Black#131313ΔE 7.29

Browse the full index of named colors A-Z or every green in the library.

#040F00 Channel Values

How #040F00 breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

Model	Channels	Notes
RGB	R 4 · G 15 · B 0	8-bit channels as sent to the display
HSL	H 104° · S 100% · L 3%	Easiest model for building lighter and darker variants
HSV	H 104° · S 100% · V 6%	Matches the picker in most design tools
CMYK	C 73% · M 0% · Y 100% · K 94%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	19.56:1 vs white · 1.07:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #040F00 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.

TextWhite text19.56:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.07:1AA normal ✗AA large ✗AAA normal ✗

Need a specific ratio against another background? Open #040F00 in the contrast checker.

Colors That Go With #040F00

Pairings derived from color-wheel relationships. The complementary color sits opposite #040F00; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base

Complementary

Analogous

Analogous

Triadic

Triadic

Split comp.

Split comp.

Tints & Shades of #040F00

Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.

Tints

Shades

#040F00

#051400

Want a full 50-950 ramp with semantic roles? Generate design tokens from #040F00.

How #040F00 Looks with Color Vision Deficiency

Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.

Typical#040F00

Protanopia#0D0D00

Protanomaly#0A0E00

Deuteranopia#0C0C00

Deuteranomaly#090D00

Tritanopia#060D0D

Tritanomaly#050E08

Achromatopsia#0C0C0C

Test a full palette in the color blindness simulator.

Using #040F00 in Code

Copy-ready declarations for the places this color usually ends up.

CSS custom property--color-040f00: #040F00;

CSS backgroundbackground-color: #040F00;

Tailwind configcolors: { 'color-040f00': '#040F00' }

SwiftUIColor(red: 0.016, green: 0.059, blue: 0.000)

Android XML<color name="color_040f00">#040F00</color>

SVG fillfill="#040F00"

More Green Colors

#040F00 sits in the greenfamily. These are its neighbours across that family's full range, each with its own breakdown.

000200 fdfff5 001f00 f7fee7 002400 f7fbf5 002c22 f5fffa 002e00 f5fff5 003300 f0fff0 008000 00db87 0e7a0d 222d0b 33ff00 47ffa3 5fa777 77dd77 96c8a2 a6fca6 bee9d1 d6ebad

#040F00 Frequently Asked Questions

What color is #040F00?

#040F00 is a darkest green — rgb(4, 15, 0) in RGB and hsl(104, 100%, 3%) in HSL. It carries no registered color name of its own; the closest named color is Smoky Black (#100C08), which is clearly related but distinguishable side by side at a CIE76 distance of 6.39.

What is the RGB value of #040F00?

#040F00 is rgb(4, 15, 0) — red 4, green 15, and blue 0 on the 0-255 scale.

What is the CMYK value of #040F00?

#040F00 converts to approximately cmyk(73%, 0%, 100%, 94%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #040F00 be black or white?

White text is the more readable choice. #040F00 scores 19.56:1 against white and 1.07:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #040F00 as a CSS color keyword?

No. #040F00 is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is black (#000000) at a CIE76 distance of 7.61, which is clearly related but distinguishable side by side.

Open #040F00 in a Tool

Hex to RGB Hex to HSL Hex to CMYK Hex to OKLCH Hex to Pantone Build a palette Make a gradient

Keep exploring: every green in the color library, the guide to shades of green, or the full color library.