#D1DEFF Color

#D1DEFF is rgb(209, 222, 255) in RGB, hsl(223, 100%, 91%) in HSL, and about cmyk(18%, 13%, 0%, 0%) in CMYK. It has no registered color name of its own — the closest is Periwinkle (Crayola) (#C3CDE6), clearly related but distinguishable side by side at ΔE 7.27. Black text is the more readable choice on this background.

#D1DEFF

HEX#D1DEFF

RGBrgb(209, 222, 255)

HSLhsl(223, 100%, 91%)

HSVhsv(223, 18%, 100%)

CMYKcmyk(18%, 13%, 0%, 0%)

OKLCHoklch(90.1% 0.047 268.4)

LABlab(88.26% 0.48 -17.68)

LCHlch(88.26% 17.69 271.55)

What #D1DEFF 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 #D1DEFF, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Periwinkle (Crayola)#C3CDE6ΔE 7.27 Light Periwinkle#C5CBE1ΔE 8.89 Lavender#E6E6FAΔE 8.98 Beau Blue#BCD4E6ΔE 9.66 Soap#CEC8EFΔE 9.67 Pale Cornflower Blue#ABCDEFΔE 10.35

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

#D1DEFF Channel Values

How #D1DEFF breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

Model	Channels	Notes
RGB	R 209 · G 222 · B 255	8-bit channels as sent to the display
HSL	H 223° · S 100% · L 91%	Easiest model for building lighter and darker variants
HSV	H 223° · S 18% · V 100%	Matches the picker in most design tools
CMYK	C 18% · M 13% · Y 0% · K 0%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	1.35:1 vs white · 15.6:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #D1DEFF 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 text1.35:1AA normal AA large AAA normal

TextBlack text15.6:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #D1DEFF in the contrast checker.

Colors That Go With #D1DEFF

Pairings derived from color-wheel relationships. The complementary color sits opposite #D1DEFF; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base

Complementary

Analogous

Analogous

Triadic

Triadic

Split comp.

Split comp.

Tints & Shades of #D1DEFF

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

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #D1DEFF.

How #D1DEFF 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#D1DEFF

Protanopia#DCDCFF

Protanomaly#D8DDFF

Deuteranopia#DADAFF

Deuteranomaly#D6DCFF

Tritanopia#CCE3E3

Tritanomaly#CEE1EE

Achromatopsia#DEDEDE

Test a full palette in the color blindness simulator.

Using #D1DEFF in Code

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

CSS custom property--color-d1deff: #D1DEFF;

CSS backgroundbackground-color: #D1DEFF;

Tailwind configcolors: { 'color-d1deff': '#D1DEFF' }

SwiftUIColor(red: 0.820, green: 0.871, blue: 1.000)

Android XML<color name="color_d1deff">#D1DEFF</color>

SVG fillfill="#D1DEFF"

More Blue Colors

#D1DEFF sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024 fafaff 00002e f9fafb 000033 f8fafc 000038 f8f8ff 000042 f5faff 000047 f5f5ff 002147 007dfa 0f52ba 1c39bb 2a3439 372aac 4e3cc3 64609a 7abdff 979aaa b8dbff d6d6ff

#D1DEFF Frequently Asked Questions

What color is #D1DEFF?

#D1DEFF is a lightest blue — rgb(209, 222, 255) in RGB and hsl(223, 100%, 91%) in HSL. It carries no registered color name of its own; the closest named color is Periwinkle (Crayola) (#C3CDE6), which is clearly related but distinguishable side by side at a CIE76 distance of 7.27.

What is the RGB value of #D1DEFF?

#D1DEFF is rgb(209, 222, 255) — red 209, green 222, and blue 255 on the 0-255 scale.

What is the CMYK value of #D1DEFF?

#D1DEFF converts to approximately cmyk(18%, 13%, 0%, 0%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #D1DEFF be black or white?

Black text is the more readable choice. #D1DEFF scores 1.35:1 against white and 15.6:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #D1DEFF as a CSS color keyword?

No. #D1DEFF 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 lavender (#E6E6FA) at a CIE76 distance of 8.98, which is clearly related but distinguishable side by side.

Open #D1DEFF in a Tool

Hex to RGB Hex to HSL Hex to CMYK Hex to OKLCH Hex to Pantone Build a palette Make a gradient

Keep exploring: every blue in the color library, the guide to shades of blue, or the full color library.