#403B11 Color

#403B11 is rgb(64, 59, 17) in RGB, hsl(54, 58%, 16%) in HSL, and about cmyk(0%, 8%, 73%, 75%) in CMYK. It has no registered color name of its own — the closest is Army Green (#4B5320), visibly different at ΔE 11.82. White text is the more readable choice on this background.

#403B11

HEX#403B11

RGBrgb(64, 59, 17)

HSLhsl(54, 58%, 16%)

HSVhsv(54, 73%, 25%)

CMYKcmyk(0%, 8%, 73%, 75%)

OKLCHoklch(34.8% 0.06 102.5)

LABlab(24.67% -2.22 25.83)

LCHlch(24.67% 25.92 94.91)

What #403B11 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 #403B11, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Army Green#4B5320ΔE 11.82 Dark Olive#3C341FΔE 11.92 Pineapple#563C0DΔE 12.41 Brown (CMY)#4B3621ΔE 13.15 Xander#44500CΔE 15.4 Rifle Green#414833ΔE 15.49

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

#403B11 Channel Values

How #403B11 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 64 · G 59 · B 17	8-bit channels as sent to the display
HSL	H 54° · S 58% · L 16%	Easiest model for building lighter and darker variants
HSV	H 54° · S 73% · V 25%	Matches the picker in most design tools
CMYK	C 0% · M 8% · Y 73% · K 75%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	11.34:1 vs white · 1.85:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #403B11 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 text11.34:1AA normal AA large AAA normal

Fails AABlack text1.85:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #403B11 in the contrast checker.

Colors That Go With #403B11

Pairings derived from color-wheel relationships. The complementary color sits opposite #403B11; 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 #403B11

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 #403B11.

How #403B11 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#403B11

Protanopia#3C3C11

Protanomaly#3E3C11

Deuteranopia#3D3D11

Deuteranomaly#3E3C11

Tritanopia#433838

Tritanomaly#42392C

Achromatopsia#3A3A3A

Test a full palette in the color blindness simulator.

Using #403B11 in Code

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

CSS custom property--color-403b11: #403B11;

CSS backgroundbackground-color: #403B11;

Tailwind configcolors: { 'color-403b11': '#403B11' }

SwiftUIColor(red: 0.251, green: 0.231, blue: 0.067)

Android XML<color name="color_403b11">#403B11</color>

SVG fillfill="#403B11"

More Yellow Colors

#403B11 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

#403B11 Frequently Asked Questions

What color is #403B11?

#403B11 is a darkest yellow — rgb(64, 59, 17) in RGB and hsl(54, 58%, 16%) in HSL. It carries no registered color name of its own; the closest named color is Army Green (#4B5320), which is visibly different at a CIE76 distance of 11.82.

What is the RGB value of #403B11?

#403B11 is rgb(64, 59, 17) — red 64, green 59, and blue 17 on the 0-255 scale.

What is the CMYK value of #403B11?

#403B11 converts to approximately cmyk(0%, 8%, 73%, 75%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #403B11 be black or white?

White text is the more readable choice. #403B11 scores 11.34:1 against white and 1.85:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #403B11 as a CSS color keyword?

No. #403B11 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 23.11, which is visibly different.

Open #403B11 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.