#FF66BF

sRGB: 255 / 102 / 191

Cosmic tempests reshape eternity
Secret gardens blossom beneath falling stars
Eternal flames echo beyond eternity

#FF66BF belongs to the rose family. Its hex code tells a screen to mix 255 red, 102 green and 191 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 325.1° lands in the rose region. Its 100.0% saturation makes it strong in color at this lightness. HSL lightness is 70.0% on a scale from black (0%) to white (100%). Of black and white lettering, black has the clearer light-to-dark separation on this background (7.90:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 255, 102, 191
HSL: 325.10°, 100.00%, 70.00%
HSV / HSB: 325.10°, 60.00%, 100.00%
CMYK (approx.): 0.00%, 60.00%, 25.10%, 0.00%
CIE XYZ (D65, Y = 100 for white): 55.393, 34.527, 53.039
CIELAB (D65, 2° observer): 65.379, 66.877, -17.046
WCAG relative luminance: 0.34524
24-bit decimal: 16737983

CMYK uses a profile-free approximation. Printed output depends on the press, ink and paper. Lab uses a D65 white point.

Text contrast

Contrast tells you how clearly lettering separates from #FF66BF in light and dark. The ratio compares relative luminance, a measure of light weighted for human vision. Identical colors give 1:1 and black against white gives 21:1. A ratio of 2.99:1 falls just below the 3:1 AA minimum for large text. Body text needs at least 4.5:1 because its finer strokes are harder to distinguish.

Black text: 7.90:1

Normal text: AAA
Large text: AAA

White text: 2.66:1

Normal text: Fail
Large text: Fail

AA and AAA are WCAG accessibility levels. AAA sets a higher bar: 7:1 for normal text and 4.5:1 for large text. Large text begins at 18 pt regular or 14 pt bold. Ratings use the unrounded ratio.

Reference: WCAG text contrast guidance

Palettes & scales

Harmonies rotate the hue. Scales mix the starting color with white, black or middle gray in 20% steps in encoded sRGB.

Complementary

#66FFA6 sits half a turn (180°) from #FF66BF on the HSL wheel. Keeping saturation and lightness steady while crossing to the opposite hue gives you a contrasting accent. Check text contrast separately before using the pair for lettering.

#FF66BF #66FFA6

Analogous

#F366FF and #FF6672 sit 30° to either side of #FF66BF. The three hues are neighbors on the wheel, so you can change the color of a border or highlight while keeping it close to the original.

#F366FF #FF66BF #FF6672

Triadic

#FF66BF, #BFFF66 and #66BFFF are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#FF66BF #BFFF66 #66BFFF

Split complementary

Start at #FF66BF and look across the wheel. #72FF66 and #66FFF3 sit 30° to either side of its exact opposite, giving you two different accent choices.

#FF66BF #72FF66 #66FFF3

Square

Starting with #FF66BF, each quarter turn (90°) takes you to the next hue: #FFF366, #66FFA6, then #6672FF. Across the square, #FF66BF pairs with #66FFA6, and #FFF366 with #6672FF.

#FF66BF #FFF366 #66FFA6 #6672FF

Tetradic

#FF66BF and #66FFA6 are opposites, as are #FFA666 and #66BFFF. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#FF66BF #FFA666 #66FFA6 #66BFFF

Tints

Mixing #FF66BF with white in 20% steps produces this scale. The first mixture, #FF85CC, keeps 80% of the original. By #FFE0F2, the mixture is 80% white.

#FF66BF #FF85CC #FFA3D9 #FFC2E5 #FFE0F2 #FFFFFF

Shades

Mixing #FF66BF with black in 20% steps produces this scale. The first mixture, #CC5299, keeps 80% of the original. By #331426, the mixture is 80% black.

#FF66BF #CC5299 #993D73 #66294C #331426 #000000

Tones

Mixing #FF66BF with middle gray in 20% steps produces this scale. The first mixture, #E66BB2, keeps 80% of the original. By #997B8D, the mixture is 80% middle gray.

#FF66BF #E66BB2 #CC70A6 #B37699 #997B8D #808080

Copy color codes

Hex, RGB and HSL are three ways to write this screen color. Paste any of them into a CSS color property.

Hex

#FF66BF

RGB

rgb(255 102 191)

HSL

hsl(325.098 100.000% 70.000%)

CSS example

.color-sample {
  background-color: #FF66BF;
  color: #000000;
}

Channel breakdown

RGB

#FF66BF uses 255 red, 102 green and 191 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 100.0%

Green 40.0%

Blue 74.9%

CMYK

A simple CMYK estimate for #FF66BF is 0.0% cyan, 60.0% magenta, 25.1% yellow and 0.0% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 60.0%

Yellow 25.1%

Black 0.0%

Nearby colors

The nearest shorthand match is #FF66BB. Its matching digit pairs let you write it as #F6B in CSS. For a modern design, keep #FF66BF when you want an exact match. Use its web-safe neighbor, #FF66CC, when matching a legacy palette of 216 colors.

Nearest shorthand: #FF66BB Nearest web-safe: #FF66CC

Gradient to complement

#FF66BF #E680BB #CC99B7 #B3B3B3 #99CCAE #80E6AA #66FFA6

Color vision previews

Compare how #FF66BF appears in each simulation. When two chart lines or status indicators become hard to tell apart, a label, shape or line pattern gives readers another way to distinguish them. Individual perception varies.

Protanopia

A red–green color vision deficiency. Without a distinct response from long-wavelength cones, some reds and greens can look alike, and reds can appear darker.

#778EC2

Deuteranopia

A red–green color vision deficiency. Without a distinct response from medium-wavelength cones, some greens can be difficult to distinguish from reds or browns.

#A2A8BB

Tritanopia

A blue–yellow color vision deficiency. Without a distinct response from short-wavelength cones, blue can resemble green, and yellow can resemble pink.

#FF628A

Protanomaly (50%)

An altered long-wavelength cone response can make reds appear dimmer and harder to distinguish from greens. This swatch shows the model’s halfway setting.

#B886BF

Deuteranomaly (50%)

An altered medium-wavelength cone response can reduce the visible difference between reds and greens. This swatch shows the model’s halfway setting.

#C396BC

Tritanomaly (50%)

An altered short-wavelength cone response can make blue harder to distinguish from green. This swatch shows the model’s halfway setting.

#FF6BAF

Grayscale (luminance)

This design check removes hue and preserves relative luminance so you can compare light and dark areas.

#9F9F9F

Partial grayscale (50% blend)

This design check mixes the original color halfway toward its grayscale equivalent in linear light. Use it to see how a design holds up as color fades.

#D686B0

Reference: National Eye Institute: Types of Color Vision Deficiency

Technical reference

CAM16 and CIECAM02 below assume D65 white, an average surround, background Y of 20 against white at 100, and adapting luminance of 4.07 cd/m².

Linear sRGB

These channels scale with emitted light. Use them for lighting calculations and physically meaningful blends.

R 1.00000 G 0.13287 B 0.52100

Display P3

P3 displays can reproduce a wider range of reds and greens. These coordinates reproduce this same sRGB swatch on a color-managed P3 display.

R 0.92901 G 0.43874 B 0.73607

Linear Display P3

These P3 channels are proportional to light, before display encoding.

R 0.84605 G 0.16165 B 0.50108

CIE xyY

The x and y coordinates locate chromaticity on a diagram. Y gives relative luminance on a scale where white is 100.

x 0.387 y 0.242 Y 34.527

CMY

Ideal cyan, magenta and yellow are the complements of the encoded red, green and blue channels.

C % 0.000 M % 60.000 Y % 25.098

Binary RGB

Each eight-bit group represents one channel. Together they store the 24-bit hex color.

11111111 01100110 10111111