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#6166EF Color

#6166EF is rgb(97, 102, 239) in RGB, hsl(238, 82%, 66%) in HSL, and about cmyk(59%, 57%, 0%, 6%) in CMYK. It has no registered color name of its own — the closest is Medium Slate Blue (#7B68EE), clearly related but distinguishable side by side at ΔE 6.94. Black text is the more readable choice on this background.

#6166EF
HEX#6166EF
RGBrgb(97, 102, 239)
HSLhsl(238, 82%, 66%)
HSVhsv(238, 59%, 94%)
CMYKcmyk(59%, 57%, 0%, 6%)
OKLCHoklch(58.3% 0.202 276.6)
LABlab(48.78% 29.41 -71.20)
LCHlch(48.78% 77.03 292.44)

What #6166EF 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 #6166EF, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Medium Slate Blue#7B68EEΔE 6.94Vantg Blue#5271FFΔE 7.01Ultramarine Blue#4166F5ΔE 7.17Very Light Blue#6666FFΔE 8.57Majorelle Blue#6050DCΔE 9.79Iris#5A4FCFΔE 10.06

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

#6166EF Channel Values

How #6166EF 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 97 · G 102 · B 2398-bit channels as sent to the display
HSLH 238° · S 82% · L 66%Easiest model for building lighter and darker variants
HSVH 238° · S 59% · V 94%Matches the picker in most design tools
CMYKC 59% · M 57% · Y 0% · K 6%Approximate ink mix; confirm with an ICC profile before printing
Luminance4.51:1 vs white · 4.66:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #6166EF 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 text4.51:1AA normal AA large AAA normal
TextBlack text4.66:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #6166EF in the contrast checker.

Colors That Go With #6166EF

Pairings derived from color-wheel relationships. The complementary color sits opposite #6166EF; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#6166EF
Complementary
#EFEB61
Analogous
#61ADEF
Analogous
#A461EF
Triadic
#EF6166
Triadic
#66EF61
Split comp.
#EFA461
Split comp.
#ADEF61

Tints & Shades of #6166EF

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

#787CF2
#8B8EF4
#A2A5F6
#B5B7F8
#CCCDFA
#DFDFFC

Shades

#373DEB
#161DDF
#1217B5
#0E1390
#0A0D66
#06083C

Want a full 50-950 ramp with semantic roles? Generate design tokens from #6166EF.

How #6166EF 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#6166EF
Protanopia#6565EF
Protanomaly#6466EF
Deuteranopia#6464EF
Deuteranomaly#6365EF
Tritanopia#2D8282
Tritanomaly#4778B8
Achromatopsia#767676

Test a full palette in the color blindness simulator.

Using #6166EF in Code

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

CSS custom property--color-6166ef: #6166EF;
CSS backgroundbackground-color: #6166EF;
Tailwind configcolors: { 'color-6166ef': '#6166EF' }
SwiftUIColor(red: 0.380, green: 0.400, blue: 0.937)
Android XML<color name="color_6166ef">#6166EF</color>
SVG fillfill="#6166EF"

More Blue Colors

#6166EF sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#6166EF Frequently Asked Questions

What color is #6166EF?

#6166EF is a light blue — rgb(97, 102, 239) in RGB and hsl(238, 82%, 66%) in HSL. It carries no registered color name of its own; the closest named color is Medium Slate Blue (#7B68EE), which is clearly related but distinguishable side by side at a CIE76 distance of 6.94.

What is the RGB value of #6166EF?

#6166EF is rgb(97, 102, 239) — red 97, green 102, and blue 239 on the 0-255 scale.

What is the CMYK value of #6166EF?

#6166EF converts to approximately cmyk(59%, 57%, 0%, 6%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #6166EF be black or white?

Black text is the more readable choice. #6166EF scores 4.51:1 against white and 4.66:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #6166EF as a CSS color keyword?

No. #6166EF 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 6.94, which is clearly related but distinguishable side by side.

Open #6166EF 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.