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#817DCF Color

#817DCF is rgb(129, 125, 207) in RGB, hsl(243, 46%, 65%) in HSL, and about cmyk(38%, 40%, 0%, 19%) in CMYK. It has no registered color name of its own — the closest is Violet-blue (Crayola) (#766EC8), clearly related but distinguishable side by side at ΔE 7.51. Black text is the more readable choice on this background.

#817DCF
HEX#817DCF
RGBrgb(129, 125, 207)
HSLhsl(243, 46%, 65%)
HSVhsv(243, 40%, 81%)
CMYKcmyk(38%, 40%, 0%, 19%)
OKLCHoklch(62.8% 0.122 284.5)
LABlab(55.45% 16.69 -42.43)
LCHlch(55.45% 45.59 291.47)

What #817DCF 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 #817DCF, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Violet-blue (Crayola)#766EC8ΔE 7.51Middle Blue Purple#8B72BEΔE 8.48Indigo (Crayola)#4F69C6ΔE 14.38Purple Mountain Majesty#9678B6ΔE 14.66Lavender Purple#967BB6ΔE 15.36Cornflower Blue#6495EDΔE 16.72

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

#817DCF Channel Values

How #817DCF 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 129 · G 125 · B 2078-bit channels as sent to the display
HSLH 243° · S 46% · L 65%Easiest model for building lighter and darker variants
HSVH 243° · S 40% · V 81%Matches the picker in most design tools
CMYKC 38% · M 40% · Y 0% · K 19%Approximate ink mix; confirm with an ICC profile before printing
Luminance3.64:1 vs white · 5.77:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #817DCF 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 text3.64:1AA normal AA large AAA normal
TextBlack text5.77:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #817DCF in the contrast checker.

Colors That Go With #817DCF

Pairings derived from color-wheel relationships. The complementary color sits opposite #817DCF; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#817DCF
Complementary
#CBCF7D
Analogous
#7DA2CF
Analogous
#AA7DCF
Triadic
#CF817D
Triadic
#7DCF81
Split comp.
#CFAA7D
Split comp.
#A2CF7D

Tints & Shades of #817DCF

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

#938FD6
#A19EDB
#B3B1E2
#C5C3E9
#D7D6F0
#E6E5F5

Shades

#605BC2
#4842B3
#3A3691
#2D2970
#1F1D4E
#131230

Want a full 50-950 ramp with semantic roles? Generate design tokens from #817DCF.

How #817DCF 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#817DCF
Protanopia#7E7ECF
Protanomaly#7F7DCF
Deuteranopia#7E7ECF
Deuteranomaly#7F7ECF
Tritanopia#718B8B
Tritanomaly#7886AA
Achromatopsia#868686

Test a full palette in the color blindness simulator.

Using #817DCF in Code

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

CSS custom property--color-817dcf: #817DCF;
CSS backgroundbackground-color: #817DCF;
Tailwind configcolors: { 'color-817dcf': '#817DCF' }
SwiftUIColor(red: 0.506, green: 0.490, blue: 0.812)
Android XML<color name="color_817dcf">#817DCF</color>
SVG fillfill="#817DCF"

More Blue Colors

#817DCF sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#817DCF Frequently Asked Questions

What color is #817DCF?

#817DCF is a light blue — rgb(129, 125, 207) in RGB and hsl(243, 46%, 65%) in HSL. It carries no registered color name of its own; the closest named color is Violet-blue (Crayola) (#766EC8), which is clearly related but distinguishable side by side at a CIE76 distance of 7.51.

What is the RGB value of #817DCF?

#817DCF is rgb(129, 125, 207) — red 129, green 125, and blue 207 on the 0-255 scale.

What is the CMYK value of #817DCF?

#817DCF converts to approximately cmyk(38%, 40%, 0%, 19%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #817DCF be black or white?

Black text is the more readable choice. #817DCF scores 3.64:1 against white and 5.77:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #817DCF as a CSS color keyword?

No. #817DCF 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 cornflowerblue (#6495ED) at a CIE76 distance of 16.72, which is visibly different.

Open #817DCF 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.