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#3F10DA Color

#3F10DA is rgb(63, 16, 218) in RGB, hsl(254, 86%, 46%) in HSL, and about cmyk(71%, 93%, 0%, 15%) in CMYK. It has no registered color name of its own — the closest is Medium Blue (#0000CD), clearly related but distinguishable side by side at ΔE 6.84. White text is the more readable choice on this background.

#3F10DA
HEX#3F10DA
RGBrgb(63, 16, 218)
HSLhsl(254, 86%, 46%)
HSVhsv(254, 93%, 85%)
CMYKcmyk(71%, 93%, 0%, 15%)
OKLCHoklch(43.4% 0.26 276.7)
LABlab(28.71% 59.63 -92.36)
LCHlch(28.71% 109.94 302.85)

What #3F10DA 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 #3F10DA, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Medium Blue#0000CDΔE 6.84Ultramarine Blue(caran D'ache)#2111EFΔE 11.38Han Purple#5218FAΔE 11.93Electric Indigo#6F00FFΔE 17.24Poison Purple#7F01FEΔE 18.25Indigo (Color Wheel)#4000FFΔE 18.53

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

#3F10DA Channel Values

How #3F10DA 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 16 · B 2188-bit channels as sent to the display
HSLH 254° · S 86% · L 46%Easiest model for building lighter and darker variants
HSVH 254° · S 93% · V 85%Matches the picker in most design tools
CMYKC 71% · M 93% · Y 0% · K 15%Approximate ink mix; confirm with an ICC profile before printing
Luminance9.14:1 vs white · 2.3:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #3F10DA 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 text9.14:1AA normal AA large AAA normal
Fails AABlack text2.3:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #3F10DA in the contrast checker.

Colors That Go With #3F10DA

Pairings derived from color-wheel relationships. The complementary color sits opposite #3F10DA; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#3F10DA
Complementary
#ABDA10
Analogous
#1046DA
Analogous
#A410DA
Triadic
#DA3F10
Triadic
#10DA3F
Split comp.
#DAA410
Split comp.
#46DA10

Tints & Shades of #3F10DA

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

#5020EE
#6E46F1
#8867F4
#A68DF6
#C0AEF9
#DED4FC

Shades

#370EBE
#2F0CA1
#270A85
#1E0868
#16064C
#0E042F

Want a full 50-950 ramp with semantic roles? Generate design tokens from #3F10DA.

How #3F10DA 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#3F10DA
Protanopia#1E1EDA
Protanomaly#2E19DA
Deuteranopia#2727DA
Deuteranomaly#321FDA
Tritanopia#005656
Tritanomaly#00449D
Achromatopsia#484848

Test a full palette in the color blindness simulator.

Using #3F10DA in Code

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

CSS custom property--color-3f10da: #3F10DA;
CSS backgroundbackground-color: #3F10DA;
Tailwind configcolors: { 'color-3f10da': '#3F10DA' }
SwiftUIColor(red: 0.247, green: 0.063, blue: 0.855)
Android XML<color name="color_3f10da">#3F10DA</color>
SVG fillfill="#3F10DA"

More Blue Colors

#3F10DA sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#3F10DA Frequently Asked Questions

What color is #3F10DA?

#3F10DA is a mid-tone blue — rgb(63, 16, 218) in RGB and hsl(254, 86%, 46%) in HSL. It carries no registered color name of its own; the closest named color is Medium Blue (#0000CD), which is clearly related but distinguishable side by side at a CIE76 distance of 6.84.

What is the RGB value of #3F10DA?

#3F10DA is rgb(63, 16, 218) — red 63, green 16, and blue 218 on the 0-255 scale.

What is the CMYK value of #3F10DA?

#3F10DA converts to approximately cmyk(71%, 93%, 0%, 15%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #3F10DA be black or white?

White text is the more readable choice. #3F10DA scores 9.14:1 against white and 2.3:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #3F10DA as a CSS color keyword?

No. #3F10DA 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 mediumblue (#0000CD) at a CIE76 distance of 6.84, which is clearly related but distinguishable side by side.

Open #3F10DA 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.