#040607

sRGB · 4 / 6 / 7

#040607 belongs to the azure family. Its hex code tells a screen to mix 4 red, 6 green and 7 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 200.0° lands in the azure region. Its 27.3% saturation makes it close to gray at this lightness. HSL lightness is 2.2% on a scale from black (0%) to white (100%). Of black and white lettering, white has the clearer light-to-dark separation on this background (20.30:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 4, 6, 7
HSL: 200.00°, 27.27%, 2.16%
HSV / HSB: 200.00°, 42.86%, 2.75%
CMYK (approx.): 42.86%, 14.29%, 0.00%, 97.25%
CIE XYZ (D65, Y = 100 for white): 0.154, 0.171, 0.226
CIELAB (D65, 2° observer): 1.548, -0.384, -0.563
WCAG relative luminance: 0.00171
24-bit decimal: 263687

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 #040607 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 · 1.03:1

Normal text: Fail
Large text: Fail

White text · 20.30:1

Normal text: AAA
Large text: AAA

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. 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

#070504 sits half a turn (180°) from #040607 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.

#040607 #070504

Analogous

#040707 and #040507 sit 30° to either side of #040607. 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.

#040707 #040607 #040507

Triadic

#040607, #070406 and #060704 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#040607 #070406 #060704

Split complementary

Start at #040607 and look across the wheel. #070405 and #070704 sit 30° to either side of its exact opposite, giving you two different accent choices.

#040607 #070405 #070704

Square

Starting with #040607, each quarter turn (90°) takes you to the next hue: #060407, #070504, then #050704. Across the square, #040607 pairs with #070504, and #060407 with #050704.

#040607 #060407 #070504 #050704

Tetradic

#040607 and #070504 are opposites, as are #050407 and #060704. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#040607 #050407 #070504 #060704

Tints

Mixing #040607 with white in 20% steps produces this scale. The first mixture, #363839, keeps 80% of the original. By #CDCDCD, the mixture is 80% white.

#040607 #363839 #686A6A #9B9B9C #CDCDCD #FFFFFF

Shades

Mixing #040607 with black in 20% steps produces this scale. The first mixture, #030506, keeps 80% of the original. By #010101, the mixture is 80% black.

#040607 #030506 #020404 #020203 #010101 #000000

Tones

Mixing #040607 with middle gray in 20% steps produces this scale. The first mixture, #1D1E1F, keeps 80% of the original. By #676868, the mixture is 80% middle gray.

#040607 #1D1E1F #363737 #4E4F50 #676868 #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

#040607

RGB

rgb(4 6 7)

HSL

hsl(200.000 27.273% 2.157%)

CSS example

.color-sample {
  background-color: #040607;
  color: #FFFFFF;
}

Channel breakdown

RGB

#040607 uses 4 red, 6 green and 7 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 1.6%

Green 2.4%

Blue 2.7%

CMYK

A simple CMYK estimate for #040607 is 42.9% cyan, 14.3% magenta, 0.0% yellow and 97.3% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 42.9%

Magenta 14.3%

Yellow 0.0%

Black 97.3%

Nearby colors

The nearest shorthand match is #000000. Its matching digit pairs let you write it as #000 in CSS. For a modern design, keep #040607 when you want an exact match. Use its web-safe neighbor, #000000, when matching a legacy palette of 216 colors.

Nearest shorthand · #000000 Nearest web-safe · #000000

Gradient to complement

#040607 #050607 #050606 #060606 #060505 #070505 #070504

Color vision previews

Compare how #040607 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.

#050607

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.

#050507

Tritanopia

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

#030606

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.

#050607

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.

#050607

Tritanomaly (50%)

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

#040607

Grayscale (luminance)

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

#060606

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.

#050606

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 0.00121 G 0.00182 B 0.00212

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 0.01708 G 0.02327 B 0.02697

Linear Display P3

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

R 0.00132 G 0.00180 B 0.00209

CIE xyY

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

x 0.279 y 0.311 Y 0.171

CMY

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

C % 98.431 M % 97.647 Y % 97.255

Binary RGB

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

00000100 00000110 00000111