#FF40DB

sRGB: 255 / 64 / 219

Cosmic tempests reshape eternity
Sleeping valleys fade beyond remembrance
Fierce revelations defy the passing ages

#FF40DB belongs to the magenta family. Its hex code tells a screen to mix 255 red, 64 green and 219 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 311.3° lands in the magenta region. Its 100.0% saturation makes it strong in color at this lightness. HSL lightness is 62.5% 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 (7.01:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 255, 64, 219
HSL: 311.31°, 100.00%, 62.55%
HSV / HSB: 311.31°, 74.90%, 100.00%
CMYK (approx.): 0.00%, 74.90%, 14.12%, 0.00%
CIE XYZ (D65, Y = 100 for white): 55.857, 30.044, 69.878
CIELAB (D65, 2° observer): 61.693, 83.930, -38.549
WCAG relative luminance: 0.30041
24-bit decimal: 16728283

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 #FF40DB 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: 7.01:1

Normal text: AAA
Large text: AAA

White text: 3.00:1

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

#40FF64 sits half a turn (180°) from #FF40DB 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.

#FF40DB #40FF64

Analogous

#C340FF and #FF407C sit 30° to either side of #FF40DB. 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.

#C340FF #FF40DB #FF407C

Triadic

#FF40DB, #DBFF40 and #40DBFF are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#FF40DB #DBFF40 #40DBFF

Split complementary

Start at #FF40DB and look across the wheel. #7CFF40 and #40FFC3 sit 30° to either side of its exact opposite, giving you two different accent choices.

#FF40DB #7CFF40 #40FFC3

Square

Starting with #FF40DB, each quarter turn (90°) takes you to the next hue: #FFC340, #40FF64, then #407CFF. Across the square, #FF40DB pairs with #40FF64, and #FFC340 with #407CFF.

#FF40DB #FFC340 #40FF64 #407CFF

Tetradic

#FF40DB and #40FF64 are opposites, as are #FF6440 and #40DBFF. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#FF40DB #FF6440 #40FF64 #40DBFF

Tints

Mixing #FF40DB with white in 20% steps produces this scale. The first mixture, #FF66E2, keeps 80% of the original. By #FFD9F8, the mixture is 80% white.

#FF40DB #FF66E2 #FF8CE9 #FFB3F1 #FFD9F8 #FFFFFF

Shades

Mixing #FF40DB with black in 20% steps produces this scale. The first mixture, #CC33AF, keeps 80% of the original. By #330D2C, the mixture is 80% black.

#FF40DB #CC33AF #992683 #661A58 #330D2C #000000

Tones

Mixing #FF40DB with middle gray in 20% steps produces this scale. The first mixture, #E64DC9, keeps 80% of the original. By #997392, the mixture is 80% middle gray.

#FF40DB #E64DC9 #CC5AB7 #B366A4 #997392 #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

#FF40DB

RGB

rgb(255 64 219)

HSL

hsl(311.309 100.000% 62.549%)

CSS example

.color-sample {
  background-color: #FF40DB;
  color: #000000;
}

Channel breakdown

RGB

#FF40DB uses 255 red, 64 green and 219 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 100.0%

Green 25.1%

Blue 85.9%

CMYK

A simple CMYK estimate for #FF40DB is 0.0% cyan, 74.9% magenta, 14.1% yellow and 0.0% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 74.9%

Yellow 14.1%

Black 0.0%

Nearby colors

The nearest shorthand match is #FF44DD. Its matching digit pairs let you write it as #F4D in CSS. For a modern design, keep #FF40DB when you want an exact match. Use its web-safe neighbor, #FF33CC, when matching a legacy palette of 216 colors.

Nearest shorthand: #FF44DD Nearest web-safe: #FF33CC

Gradient to complement

#FF40DB #DF60C7 #BF80B3 #A0A0A0 #80BF8C #60DF78 #40FF64

Color vision previews

Compare how #FF40DB 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.

#4683DF

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.

#899FD7

Tritanopia

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

#FF4D8A

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.

#A975DC

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.

#B688D8

Tritanomaly (50%)

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

#FE4EC3

Grayscale (luminance)

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

#959595

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.

#D374BC

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 0.05127 B 0.70838

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 0.92196 G 0.31855 B 0.83552

Linear Display P3

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

R 0.83156 G 0.08276 B 0.66578

CIE xyY

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

x 0.359 y 0.193 Y 30.044

CMY

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

C % 0.000 M % 74.902 Y % 14.118

Binary RGB

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

11111111 01000000 11011011