#040005 Color

#040005 is rgb(4, 0, 5) in RGB, hsl(288, 100%, 1%) in HSL, and about cmyk(20%, 100%, 0%, 98%) in CMYK. It has no registered color name of its own — the closest is Black (#000000), below the threshold most people can see at ΔE 2.23. White text is the more readable choice on this background.

#040005

HEX#040005

RGBrgb(4, 0, 5)

HSLhsl(288, 100%, 1%)

HSVhsv(288, 100%, 2%)

CMYKcmyk(20%, 100%, 0%, 98%)

OKLCHoklch(7.7% 0.036 323)

LABlab(0.33% 1.60 -1.51)

LCHlch(0.33% 2.21 316.67)

What #040005 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 #040005, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Black#000000ΔE 2.23 Vantablack#000100ΔE 2.68 Vampire Black#080808ΔE 2.89 Registration Black#000200ΔE 3.14 Jet Black#0A0A0AΔE 3.27 Smoky Black#100C08ΔE 4.85

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

#040005 Channel Values

How #040005 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 0 · B 5	8-bit channels as sent to the display
HSL	H 288° · S 100% · L 1%	Easiest model for building lighter and darker variants
HSV	H 288° · S 100% · V 2%	Matches the picker in most design tools
CMYK	C 20% · M 100% · Y 0% · K 98%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	20.85:1 vs white · 1.01:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #040005 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 text20.85:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.01:1AA normal ✗AA large ✗AAA normal ✗

Need a specific ratio against another background? Open #040005 in the contrast checker.

Colors That Go With #040005

Pairings derived from color-wheel relationships. The complementary color sits opposite #040005; 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 #040005

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

Want a full 50-950 ramp with semantic roles? Generate design tokens from #040005.

How #040005 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#040005

Protanopia#010105

Protanomaly#020005

Deuteranopia#010105

Deuteranomaly#020105

Tritanopia#030101

Tritanomaly#040002

Achromatopsia#010101

Test a full palette in the color blindness simulator.

Using #040005 in Code

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

CSS custom property--color-040005: #040005;

CSS backgroundbackground-color: #040005;

Tailwind configcolors: { 'color-040005': '#040005' }

SwiftUIColor(red: 0.016, green: 0.000, blue: 0.020)

Android XML<color name="color_040005">#040005</color>

SVG fillfill="#040005"

More Purple Colors

#040005 sits in the purplefamily. These are its neighbours across that family's full range, each with its own breakdown.

150024 fdf8ff 170b22 fdf4ff 1b0d35 faf5ff 1d0731 fae8ff 1e0033 f6cfff 20002e f3e8ff 300052 402060 541490 6600cc 7008e7 8806ce 9900cc a11fff b284be c488e2 d69ae5 e6d9f2

#040005 Frequently Asked Questions

What color is #040005?

#040005 is a darkest purple — rgb(4, 0, 5) in RGB and hsl(288, 100%, 1%) in HSL. It carries no registered color name of its own; the closest named color is Black (#000000), which is below the threshold most people can see at a CIE76 distance of 2.23.

What is the RGB value of #040005?

#040005 is rgb(4, 0, 5) — red 4, green 0, and blue 5 on the 0-255 scale.

What is the CMYK value of #040005?

#040005 converts to approximately cmyk(20%, 100%, 0%, 98%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #040005 be black or white?

White text is the more readable choice. #040005 scores 20.85:1 against white and 1.01:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #040005 as a CSS color keyword?

No. #040005 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 2.23, which is below the threshold most people can see.

Open #040005 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 purple in the color library, the guide to shades of purple, or the full color library.