#F3F6FB Color

#F3F6FB is rgb(243, 246, 251) in RGB, hsl(217, 50%, 97%) in HSL, and about cmyk(3%, 2%, 0%, 2%) in CMYK. It has no registered color name of its own — the closest is Ghost White (#F8F8FF), below the threshold most people can see at ΔE 1.72. Black text is the more readable choice on this background.

#F3F6FB

HEX#F3F6FB

RGBrgb(243, 246, 251)

HSLhsl(217, 50%, 97%)

HSVhsv(217, 3%, 98%)

CMYKcmyk(3%, 2%, 0%, 2%)

OKLCHoklch(97.2% 0.007 260.7)

LABlab(96.76% -0.36 -2.77)

LCHlch(96.76% 2.80 262.63)

What #F3F6FB 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 #F3F6FB, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Ghost White#F8F8FFΔE 1.72 Alice Blue#F0F8FFΔE 2.14 Cultured#F5F5F5ΔE 2.81 Zinc White#FDF8FFΔE 3.29 Cotton#FBFBF9ΔE 4.15 White#FFFFFFΔE 4.28

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

#F3F6FB Channel Values

How #F3F6FB 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 243 · G 246 · B 251	8-bit channels as sent to the display
HSL	H 217° · S 50% · L 97%	Easiest model for building lighter and darker variants
HSV	H 217° · S 3% · V 98%	Matches the picker in most design tools
CMYK	C 3% · M 2% · Y 0% · K 2%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	1.08:1 vs white · 19.39:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #F3F6FB 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 text1.08:1AA normal AA large AAA normal

TextBlack text19.39:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #F3F6FB in the contrast checker.

Colors That Go With #F3F6FB

Pairings derived from color-wheel relationships. The complementary color sits opposite #F3F6FB; 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 #F3F6FB

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

#F4F6FB

#F7F9FC

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #F3F6FB.

How #F3F6FB 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#F3F6FB

Protanopia#F5F5FB

Protanomaly#F4F6FB

Deuteranopia#F5F5FB

Deuteranomaly#F4F5FB

Tritanopia#F2F7F7

Tritanomaly#F3F6F8

Achromatopsia#F6F6F6

Test a full palette in the color blindness simulator.

Using #F3F6FB in Code

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

CSS custom property--color-f3f6fb: #F3F6FB;

CSS backgroundbackground-color: #F3F6FB;

Tailwind configcolors: { 'color-f3f6fb': '#F3F6FB' }

SwiftUIColor(red: 0.953, green: 0.965, blue: 0.984)

Android XML<color name="color_f3f6fb">#F3F6FB</color>

SVG fillfill="#F3F6FB"

More Blue Colors

#F3F6FB 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

#F3F6FB Frequently Asked Questions

What color is #F3F6FB?

#F3F6FB is a lightest blue — rgb(243, 246, 251) in RGB and hsl(217, 50%, 97%) in HSL. It carries no registered color name of its own; the closest named color is Ghost White (#F8F8FF), which is below the threshold most people can see at a CIE76 distance of 1.72.

What is the RGB value of #F3F6FB?

#F3F6FB is rgb(243, 246, 251) — red 243, green 246, and blue 251 on the 0-255 scale.

What is the CMYK value of #F3F6FB?

#F3F6FB converts to approximately cmyk(3%, 2%, 0%, 2%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #F3F6FB be black or white?

Black text is the more readable choice. #F3F6FB scores 1.08:1 against white and 19.39:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #F3F6FB as a CSS color keyword?

No. #F3F6FB 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 ghostwhite (#F8F8FF) at a CIE76 distance of 1.72, which is below the threshold most people can see.

Open #F3F6FB 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.