Gunmetal (#2A3439)

The hex code for Gunmetal is #2A3439. It is rgb(42, 52, 57) in RGB, hsl(200, 15%, 19%) in HSL, and about cmyk(26%, 9%, 0%, 78%) in CMYK — a darkest blue. White text is the more readable choice on this background.

#2A3439

HEX#2A3439

RGBrgb(42, 52, 57)

HSLhsl(200, 15%, 19%)

HSVhsv(200, 26%, 22%)

CMYKcmyk(26%, 9%, 0%, 78%)

OKLCHoklch(31.8% 0.016 229.5)

LABlab(20.92% -3.35 -4.65)

LCHlch(20.92% 5.73 234.24)

Colors Closest to Gunmetal

Gunmetal is a registered color name. These are the named colors nearest to it, measured as CIE76 distance in CIELAB — a perceptual scale, so the ordering matches what the eye sees rather than how close the raw RGB numbers happen to sit.

Outer Space (Crayola)#2D383AΔE 2.63 Traffic Black#2A2D2FΔE 4.59 Onyx#353839ΔE 4.78 Charcoal Black#232B2BΔE 5.39 Jet#343434ΔE 5.78 Charcoal#36454FΔE 8.17

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

#2A3439 Channel Values

How Gunmetal 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 42 · G 52 · B 57	8-bit channels as sent to the display
HSL	H 200° · S 15% · L 19%	Easiest model for building lighter and darker variants
HSV	H 200° · S 26% · V 22%	Matches the picker in most design tools
CMYK	C 26% · M 9% · Y 0% · K 78%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	12.74:1 vs white · 1.65:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a Gunmetal 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 text12.74:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.65:1AA normal ✗AA large ✗AAA normal ✗

Need a specific ratio against another background? Open #2A3439 in the contrast checker.

Colors That Go With Gunmetal

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

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 #2A3439.

How Gunmetal 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#2A3439

Protanopia#323239

Protanomaly#2F3339

Deuteranopia#313139

Deuteranomaly#2E3239

Tritanopia#293535

Tritanomaly#293436

Achromatopsia#323232

Test a full palette in the color blindness simulator.

Using #2A3439 in Code

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

CSS custom property--gunmetal: #2A3439;

CSS backgroundbackground-color: #2A3439;

Tailwind configcolors: { 'gunmetal': '#2A3439' }

SwiftUIColor(red: 0.165, green: 0.204, blue: 0.224)

Android XML<color name="gunmetal">#2A3439</color>

SVG fillfill="#2A3439"

More Blue Colors

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

2a52be 2a2069 2b2bc5 297eff 2b506e 2929ff 2b7fff 2887c8 2c2555 273be2 2d14b8 272e34 3737d7 4f39f6 657586 7ba4ef 9999ff bbcce2 d7e1ee f5faff 0000ff 0072bb 0d1f54 191980

#2A3439 Frequently Asked Questions

What is the hex code for Gunmetal?

The hex code for Gunmetal is #2A3439. That is rgb(42, 52, 57) in RGB, hsl(200, 15%, 19%) in HSL, and approximately cmyk(26%, 9%, 0%, 78%) in CMYK.

What is the RGB value of #2A3439?

#2A3439 is rgb(42, 52, 57) — red 42, green 52, and blue 57 on the 0-255 scale.

What is the CMYK value of #2A3439?

#2A3439 converts to approximately cmyk(26%, 9%, 0%, 78%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #2A3439 be black or white?

White text is the more readable choice. #2A3439 scores 12.74:1 against white and 1.65:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #2A3439 as a CSS color keyword?

No. #2A3439 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 darkslategray (#2F4F4F) at a CIE76 distance of 13.58, which is visibly different.

Open Gunmetal 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 blue in the color library, the guide to shades of blue, or the full color library.