#3F401C Color

#3F401C is rgb(63, 64, 28) in RGB, hsl(62, 39%, 18%) in HSL, and about cmyk(2%, 0%, 56%, 75%) in CMYK. It has no registered color name of its own — the closest is Dark Olive (#3C341F), visibly different at ΔE 10.08. White text is the more readable choice on this background.

#3F401C

HEX#3F401C

RGBrgb(63, 64, 28)

HSLhsl(62, 39%, 18%)

HSVhsv(62, 56%, 25%)

CMYKcmyk(2%, 0%, 56%, 75%)

OKLCHoklch(36.1% 0.055 110.3)

LABlab(26.31% -4.94 21.60)

LCHlch(26.31% 22.16 102.89)

What #3F401C 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 #3F401C, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Dark Olive#3C341FΔE 10.08 Rifle Green#414833ΔE 10.51 Army Green#4B5320ΔE 10.83 Kombu Green#354230ΔE 12.92 Brown (CMY)#4B3621ΔE 13.39 Fatigue Green#5B6238ΔE 14.28

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

#3F401C Channel Values

How #3F401C 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 63 · G 64 · B 28	8-bit channels as sent to the display
HSL	H 62° · S 39% · L 18%	Easiest model for building lighter and darker variants
HSV	H 62° · S 56% · V 25%	Matches the picker in most design tools
CMYK	C 2% · M 0% · Y 56% · K 75%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	10.71:1 vs white · 1.96:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #3F401C 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 text10.71:1AA normal AA large AAA normal

Fails AABlack text1.96:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #3F401C in the contrast checker.

Colors That Go With #3F401C

Pairings derived from color-wheel relationships. The complementary color sits opposite #3F401C; 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 #3F401C

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 #3F401C.

How #3F401C 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#3F401C

Protanopia#40401C

Protanomaly#3F401C

Deuteranopia#40401C

Deuteranomaly#3F401C

Tritanopia#423D3D

Tritanomaly#413E32

Achromatopsia#3E3E3E

Test a full palette in the color blindness simulator.

Using #3F401C in Code

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

CSS custom property--color-3f401c: #3F401C;

CSS backgroundbackground-color: #3F401C;

Tailwind configcolors: { 'color-3f401c': '#3F401C' }

SwiftUIColor(red: 0.247, green: 0.251, blue: 0.110)

Android XML<color name="color_3f401c">#3F401C</color>

SVG fillfill="#3F401C"

More Yellow Colors

#3F401C sits in the yellow family. These are its neighbours across that family's full range, each with its own breakdown.

181807 fffff5 1b1404 fffff0 1f1f00 ffffeb 242400 ffffe5 2a2913 ffffe0 2b2003 ffffd6 573a00 856514 b0a94f cc9900 e0e000 edeae0 f2f1e3 f8f3c9 fcfce8 ffcc00 fff000 ffff0f

#3F401C Frequently Asked Questions

What color is #3F401C?

#3F401C is a darkest yellow — rgb(63, 64, 28) in RGB and hsl(62, 39%, 18%) in HSL. It carries no registered color name of its own; the closest named color is Dark Olive (#3C341F), which is visibly different at a CIE76 distance of 10.08.

What is the RGB value of #3F401C?

#3F401C is rgb(63, 64, 28) — red 63, green 64, and blue 28 on the 0-255 scale.

What is the CMYK value of #3F401C?

#3F401C converts to approximately cmyk(2%, 0%, 56%, 75%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #3F401C be black or white?

White text is the more readable choice. #3F401C scores 10.71:1 against white and 1.96:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #3F401C as a CSS color keyword?

No. #3F401C 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 darkolivegreen (#556B2F) at a CIE76 distance of 21.56, which is visibly different.

Open #3F401C 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 yellow in the color library, the guide to shades of yellow, or the full color library.