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#304273 Color

#304273 is rgb(48, 66, 115) in RGB, hsl(224, 41%, 32%) in HSL, and about cmyk(58%, 43%, 0%, 55%) in CMYK. It has no registered color name of its own — the closest is Marine Blue (#01386A), clearly related but distinguishable side by side at ΔE 8.19. White text is the more readable choice on this background.

#304273
HEX#304273
RGBrgb(48, 66, 115)
HSLhsl(224, 41%, 32%)
HSVhsv(224, 58%, 45%)
CMYKcmyk(58%, 43%, 0%, 55%)
OKLCHoklch(38.9% 0.087 267.1)
LABlab(28.39% 5.03 -30.97)
LCHlch(28.39% 31.38 279.23)

What #304273 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 #304273, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Marine Blue#01386AΔE 8.19Purple Navy#4E5180ΔE 8.93Yale Blue#00356BΔE 9.09Dark Midnight Blue#003366ΔE 9.19Metallic Blue#32527BΔE 9.58Yinmn Blue#2E5090ΔE 10.56

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

#304273 Channel Values

How #304273 breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

ModelChannelsNotes
RGBR 48 · G 66 · B 1158-bit channels as sent to the display
HSLH 224° · S 41% · L 32%Easiest model for building lighter and darker variants
HSVH 224° · S 58% · V 45%Matches the picker in most design tools
CMYKC 58% · M 43% · Y 0% · K 55%Approximate ink mix; confirm with an ICC profile before printing
Luminance9.76:1 vs white · 2.15:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #304273 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 text9.76:1AA normal AA large AAA normal
Fails AABlack text2.15:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #304273 in the contrast checker.

Colors That Go With #304273

Pairings derived from color-wheel relationships. The complementary color sits opposite #304273; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#304273
Complementary
#736130
Analogous
#306373
Analogous
#403073
Triadic
#733042
Triadic
#427330
Split comp.
#734030
Split comp.
#637330

Tints & Shades of #304273

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

#3E5593
#4F6AB5
#6F85C3
#93A4D2
#B3BFDF
#D7DEEE

Shades

#2A3A65
#243156
#1E2948
#18213A
#12192B
#0C101D

Want a full 50-950 ramp with semantic roles? Generate design tokens from #304273.

How #304273 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#304273
Protanopia#3F3F73
Protanomaly#3A4073
Deuteranopia#3D3D73
Deuteranomaly#383F73
Tritanopia#204A4A
Tritanomaly#27475D
Achromatopsia#444444

Test a full palette in the color blindness simulator.

Using #304273 in Code

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

CSS custom property--color-304273: #304273;
CSS backgroundbackground-color: #304273;
Tailwind configcolors: { 'color-304273': '#304273' }
SwiftUIColor(red: 0.188, green: 0.259, blue: 0.451)
Android XML<color name="color_304273">#304273</color>
SVG fillfill="#304273"

More Blue Colors

#304273 sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#304273 Frequently Asked Questions

What color is #304273?

#304273 is a dark blue — rgb(48, 66, 115) in RGB and hsl(224, 41%, 32%) in HSL. It carries no registered color name of its own; the closest named color is Marine Blue (#01386A), which is clearly related but distinguishable side by side at a CIE76 distance of 8.19.

What is the RGB value of #304273?

#304273 is rgb(48, 66, 115) — red 48, green 66, and blue 115 on the 0-255 scale.

What is the CMYK value of #304273?

#304273 converts to approximately cmyk(58%, 43%, 0%, 55%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #304273 be black or white?

White text is the more readable choice. #304273 scores 9.76:1 against white and 2.15:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #304273 as a CSS color keyword?

No. #304273 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 darkslateblue (#483D8B) at a CIE76 distance of 20.26, which is visibly different.

Open #304273 in a Tool

Hex to RGBHex to HSLHex to CMYKHex to OKLCHHex to PantoneBuild a paletteMake a gradient

Keep exploring: every blue in the color library, the guide to shades of blue, or the full color library.