#4100CC Color

#4100CC is rgb(65, 0, 204) in RGB, hsl(259, 100%, 40%) in HSL, and about cmyk(68%, 100%, 0%, 20%) in CMYK. It has no registered color name of its own — the closest is Medium Blue (#0000CD), clearly related but distinguishable side by side at ΔE 7.88. White text is the more readable choice on this background.

#4100CC

HEX#4100CC

RGBrgb(65, 0, 204)

HSLhsl(259, 100%, 40%)

HSVhsv(259, 100%, 80%)

CMYKcmyk(68%, 100%, 0%, 20%)

OKLCHoklch(41.2% 0.25 279.5)

LABlab(26.26% 59.91 -88.32)

LCHlch(26.26% 106.72 304.15)

What #4100CC 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 #4100CC, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Medium Blue#0000CDΔE 7.88 Ultramarine Blue(caran D'ache)#2111EFΔE 15.57 Han Purple#5218FAΔE 16.03 Violet (Caran D'ache)#6E00C0ΔE 16.04 Neon Blue#1B03A3ΔE 17.55 Palatinate Blue#273BE2ΔE 19.58

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

#4100CC Channel Values

How #4100CC 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 65 · G 0 · B 204	8-bit channels as sent to the display
HSL	H 259° · S 100% · L 40%	Easiest model for building lighter and darker variants
HSV	H 259° · S 100% · V 80%	Matches the picker in most design tools
CMYK	C 68% · M 100% · Y 0% · K 20%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	10.02:1 vs white · 2.1:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #4100CC 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 text10.02:1AA normal AA large AAA normal

Fails AABlack text2.1:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #4100CC in the contrast checker.

Colors That Go With #4100CC

Pairings derived from color-wheel relationships. The complementary color sits opposite #4100CC; 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 #4100CC

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 #4100CC.

How #4100CC 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#4100CC

Protanopia#1818CC

Protanomaly#2D11CC

Deuteranopia#2424CC

Deuteranomaly#321ACC

Tritanopia#004E4E

Tritanomaly#133C92

Achromatopsia#424242

Test a full palette in the color blindness simulator.

Using #4100CC in Code

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

CSS custom property--color-4100cc: #4100CC;

CSS backgroundbackground-color: #4100CC;

Tailwind configcolors: { 'color-4100cc': '#4100CC' }

SwiftUIColor(red: 0.255, green: 0.000, blue: 0.800)

Android XML<color name="color_4100cc">#4100CC</color>

SVG fillfill="#4100CC"

More Purple Colors

#4100CC sits in the purple family. 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 b19cd9 c27aff cebeef e0b2eb

#4100CC Frequently Asked Questions

What color is #4100CC?

#4100CC is a mid-tone purple — rgb(65, 0, 204) in RGB and hsl(259, 100%, 40%) in HSL. It carries no registered color name of its own; the closest named color is Medium Blue (#0000CD), which is clearly related but distinguishable side by side at a CIE76 distance of 7.88.

What is the RGB value of #4100CC?

#4100CC is rgb(65, 0, 204) — red 65, green 0, and blue 204 on the 0-255 scale.

What is the CMYK value of #4100CC?

#4100CC converts to approximately cmyk(68%, 100%, 0%, 20%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #4100CC be black or white?

White text is the more readable choice. #4100CC scores 10.02:1 against white and 2.1:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #4100CC as a CSS color keyword?

No. #4100CC 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 mediumblue (#0000CD) at a CIE76 distance of 7.88, which is clearly related but distinguishable side by side.

Open #4100CC 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.