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#3F46CF Color

#3F46CF is rgb(63, 70, 207) in RGB, hsl(237, 60%, 53%) in HSL, and about cmyk(70%, 66%, 0%, 19%) in CMYK. It has no registered color name of its own — the closest is Persian Blue (#1C39BB), clearly related but distinguishable side by side at ΔE 7.09. White text is the more readable choice on this background.

#3F46CF
HEX#3F46CF
RGBrgb(63, 70, 207)
HSLhsl(237, 60%, 53%)
HSVhsv(237, 70%, 81%)
CMYKcmyk(70%, 66%, 0%, 19%)
OKLCHoklch(48% 0.207 273.3)
LABlab(36.52% 32.97 -73.13)
LCHlch(36.52% 80.21 294.27)

What #3F46CF 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 #3F46CF, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Persian Blue#1C39BBΔE 7.09Majorelle Blue#6050DCΔE 7.22Iris#5A4FCFΔE 8.05Iridescent Indigo#3C32CDΔE 13.05Denim Blue#2243B6ΔE 13.08New Car#214FC6ΔE 13.28

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

#3F46CF Channel Values

How #3F46CF 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 63 · G 70 · B 2078-bit channels as sent to the display
HSLH 237° · S 60% · L 53%Easiest model for building lighter and darker variants
HSVH 237° · S 70% · V 81%Matches the picker in most design tools
CMYKC 70% · M 66% · Y 0% · K 19%Approximate ink mix; confirm with an ICC profile before printing
Luminance7.03:1 vs white · 2.99:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #3F46CF 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 text7.03:1AA normal AA large AAA normal
Fails AABlack text2.99:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #3F46CF in the contrast checker.

Colors That Go With #3F46CF

Pairings derived from color-wheel relationships. The complementary color sits opposite #3F46CF; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#3F46CF
Complementary
#CFC83F
Analogous
#3F8ECF
Analogous
#803FCF
Triadic
#CF3F46
Triadic
#46CF3F
Split comp.
#CF803F
Split comp.
#8ECF3F

Tints & Shades of #3F46CF

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

#585ED5
#7479DC
#8D91E2
#A9ADEA
#C2C4F0
#DEE0F7

Shades

#2F36BC
#282E9F
#212683
#191D66
#121549
#0B0D2D

Want a full 50-950 ramp with semantic roles? Generate design tokens from #3F46CF.

How #3F46CF 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#3F46CF
Protanopia#4545CF
Protanomaly#4345CF
Deuteranopia#4444CF
Deuteranomaly#4245CF
Tritanopia#006666
Tritanomaly#135B9B
Achromatopsia#595959

Test a full palette in the color blindness simulator.

Using #3F46CF in Code

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

CSS custom property--color-3f46cf: #3F46CF;
CSS backgroundbackground-color: #3F46CF;
Tailwind configcolors: { 'color-3f46cf': '#3F46CF' }
SwiftUIColor(red: 0.247, green: 0.275, blue: 0.812)
Android XML<color name="color_3f46cf">#3F46CF</color>
SVG fillfill="#3F46CF"

More Blue Colors

#3F46CF sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#3F46CF Frequently Asked Questions

What color is #3F46CF?

#3F46CF is a mid-tone blue — rgb(63, 70, 207) in RGB and hsl(237, 60%, 53%) in HSL. It carries no registered color name of its own; the closest named color is Persian Blue (#1C39BB), which is clearly related but distinguishable side by side at a CIE76 distance of 7.09.

What is the RGB value of #3F46CF?

#3F46CF is rgb(63, 70, 207) — red 63, green 70, and blue 207 on the 0-255 scale.

What is the CMYK value of #3F46CF?

#3F46CF converts to approximately cmyk(70%, 66%, 0%, 19%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #3F46CF be black or white?

White text is the more readable choice. #3F46CF scores 7.03:1 against white and 2.99:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #3F46CF as a CSS color keyword?

No. #3F46CF 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 mediumslateblue (#7B68EE) at a CIE76 distance of 16.22, which is visibly different.

Open #3F46CF 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.