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#646DED Color

#646DED is rgb(100, 109, 237) in RGB, hsl(236, 79%, 66%) in HSL, and about cmyk(58%, 54%, 0%, 7%) in CMYK. It has no registered color name of its own — the closest is Bluetiful (#3C69E7), clearly related but distinguishable side by side at ΔE 8.05. Black text is the more readable choice on this background.

#646DED
HEX#646DED
RGBrgb(100, 109, 237)
HSLhsl(236, 79%, 66%)
HSVhsv(236, 58%, 93%)
CMYKcmyk(58%, 54%, 0%, 7%)
OKLCHoklch(59.6% 0.19 276)
LABlab(50.61% 25.49 -67.12)
LCHlch(50.61% 71.80 290.80)

What #646DED 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 #646DED, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Bluetiful#3C69E7ΔE 8.05Medium Slate Blue#7B68EEΔE 8.4Vantg Blue#5271FFΔE 8.56Royal Blue#4169E1ΔE 8.61Savoy Blue#4B61D1ΔE 10.24Ultramarine Blue#4166F5ΔE 10.5

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

#646DED Channel Values

How #646DED 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 100 · G 109 · B 2378-bit channels as sent to the display
HSLH 236° · S 79% · L 66%Easiest model for building lighter and darker variants
HSVH 236° · S 58% · V 93%Matches the picker in most design tools
CMYKC 58% · M 54% · Y 0% · K 7%Approximate ink mix; confirm with an ICC profile before printing
Luminance4.24:1 vs white · 4.95:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #646DED 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.

Fails AAWhite text4.24:1AA normal AA large AAA normal
TextBlack text4.95:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #646DED in the contrast checker.

Colors That Go With #646DED

Pairings derived from color-wheel relationships. The complementary color sits opposite #646DED; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#646DED
Complementary
#EDE464
Analogous
#64B1ED
Analogous
#9F64ED
Triadic
#ED646D
Triadic
#6DED64
Split comp.
#ED9F64
Split comp.
#B1ED64

Tints & Shades of #646DED

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

#7B82EF
#8D94F2
#A4A9F4
#B6BAF6
#CDD0F9
#DFE1FB

Shades

#3B46E8
#1A27DB
#151FB2
#11198D
#0C1264
#070A3B

Want a full 50-950 ramp with semantic roles? Generate design tokens from #646DED.

How #646DED 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#646DED
Protanopia#6C6CED
Protanomaly#696CED
Deuteranopia#6A6AED
Deuteranomaly#686BED
Tritanopia#388787
Tritanomaly#4D7DB9
Achromatopsia#7B7B7B

Test a full palette in the color blindness simulator.

Using #646DED in Code

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

CSS custom property--color-646ded: #646DED;
CSS backgroundbackground-color: #646DED;
Tailwind configcolors: { 'color-646ded': '#646DED' }
SwiftUIColor(red: 0.392, green: 0.427, blue: 0.929)
Android XML<color name="color_646ded">#646DED</color>
SVG fillfill="#646DED"

More Blue Colors

#646DED sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#646DED Frequently Asked Questions

What color is #646DED?

#646DED is a light blue — rgb(100, 109, 237) in RGB and hsl(236, 79%, 66%) in HSL. It carries no registered color name of its own; the closest named color is Bluetiful (#3C69E7), which is clearly related but distinguishable side by side at a CIE76 distance of 8.05.

What is the RGB value of #646DED?

#646DED is rgb(100, 109, 237) — red 100, green 109, and blue 237 on the 0-255 scale.

What is the CMYK value of #646DED?

#646DED converts to approximately cmyk(58%, 54%, 0%, 7%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #646DED be black or white?

Black text is the more readable choice. #646DED scores 4.24:1 against white and 4.95:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #646DED as a CSS color keyword?

No. #646DED 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 8.4, which is clearly related but distinguishable side by side.

Open #646DED 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.