#004170 Color

#004170 is rgb(0, 65, 112) in RGB, hsl(205, 100%, 22%) in HSL, and about cmyk(100%, 42%, 0%, 56%) in CMYK. It has no registered color name of its own — the closest is Indigo Dye (#00416A), very hard to tell apart at ΔE 3.97. White text is the more readable choice on this background.

#004170

HEX#004170

RGBrgb(0, 65, 112)

HSLhsl(205, 100%, 22%)

HSVhsv(205, 100%, 44%)

CMYKcmyk(100%, 42%, 0%, 56%)

OKLCHoklch(36.7% 0.099 248.2)

LABlab(26.07% -3.31 -32.88)

LCHlch(26.07% 33.04 264.26)

What #004170 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 #004170, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Indigo Dye#00416AΔE 3.97 Marine Blue#01386AΔE 5.13 Dark Midnight Blue#003366ΔE 7.73 Yale Blue#00356BΔE 8.14 Metallic Blue#32527BΔE 9.72 Traffic Blue#0E518DΔE 9.9

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

#004170 Channel Values

How #004170 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 0 · G 65 · B 112	8-bit channels as sent to the display
HSL	H 205° · S 100% · L 22%	Easiest model for building lighter and darker variants
HSV	H 205° · S 100% · V 44%	Matches the picker in most design tools
CMYK	C 100% · M 42% · Y 0% · K 56%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	10.55:1 vs white · 1.99:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #004170 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 text10.55:1AA normal AA large AAA normal

Fails AABlack text1.99:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #004170 in the contrast checker.

Colors That Go With #004170

Pairings derived from color-wheel relationships. The complementary color sits opposite #004170; 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 #004170

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 #004170.

How #004170 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#004170

Protanopia#3B3B70

Protanomaly#2D3E70

Deuteranopia#353570

Deuteranomaly#283A70

Tritanopia#004949

Tritanomaly#00465B

Achromatopsia#3F3F3F

Test a full palette in the color blindness simulator.

Using #004170 in Code

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

CSS custom property--color-004170: #004170;

CSS backgroundbackground-color: #004170;

Tailwind configcolors: { 'color-004170': '#004170' }

SwiftUIColor(red: 0.000, green: 0.255, blue: 0.439)

Android XML<color name="color_004170">#004170</color>

SVG fillfill="#004170"

More Blue Colors

#004170 sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024 fafaff 00002e f9fafb 000033 f8fafc 000038 f8f8ff 000042 f5faff 000047 f5f5ff 002147 007dfa 0f52ba 1c39bb 2a3439 372aac 4e3cc3 64609a 7abdff 979aaa b8dbff d6d6ff

#004170 Frequently Asked Questions

What color is #004170?

#004170 is a dark blue — rgb(0, 65, 112) in RGB and hsl(205, 100%, 22%) in HSL. It carries no registered color name of its own; the closest named color is Indigo Dye (#00416A), which is very hard to tell apart at a CIE76 distance of 3.97.

What is the RGB value of #004170?

#004170 is rgb(0, 65, 112) — red 0, green 65, and blue 112 on the 0-255 scale.

What is the CMYK value of #004170?

#004170 converts to approximately cmyk(100%, 42%, 0%, 56%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #004170 be black or white?

White text is the more readable choice. #004170 scores 10.55:1 against white and 1.99:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #004170 as a CSS color keyword?

No. #004170 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 steelblue (#4682B4) at a CIE76 distance of 26.4, which is a different colour altogether.

Open #004170 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.