#030D4E

sRGB: 3 / 13 / 78

#030D4E belongs to the blue family. Its hex code tells a screen to mix 3 red, 13 green and 78 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 232.0° lands in the blue region. Its 92.6% saturation makes it strong in color at this lightness. HSL lightness is 15.9% 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 (17.93:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 3, 13, 78
HSL: 232.00°, 92.59%, 15.88%
HSV / HSB: 232.00°, 96.15%, 30.59%
CMYK (approx.): 96.15%, 83.33%, 0.00%, 69.41%
CIE XYZ (D65, Y = 100 for white): 1.556, 0.857, 7.291
CIELAB (D65, 2° observer): 7.743, 24.631, -40.275
WCAG relative luminance: 0.00857
24-bit decimal: 200014

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 #030D4E 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: 1.17:1

Normal text: Fail
Large text: Fail

White text: 17.93:1

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.

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

#4E4403 sits half a turn (180°) from #030D4E 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.

#030D4E #4E4403

Analogous

#03334E and #1E034E sit 30° to either side of #030D4E. 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.

#03334E #030D4E #1E034E

Triadic

#030D4E, #4E030D and #0D4E03 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#030D4E #4E030D #0D4E03

Split complementary

Start at #030D4E and look across the wheel. #4E1F03 and #334E03 sit 30° to either side of its exact opposite, giving you two different accent choices.

#030D4E #4E1F03 #334E03

Square

Starting with #030D4E, each quarter turn (90°) takes you to the next hue: #4E0333, #4E4403, then #034E1F. Across the square, #030D4E pairs with #4E4403, and #4E0333 with #034E1F.

#030D4E #4E0333 #4E4403 #034E1F

Tetradic

#030D4E and #4E4403 are opposites, as are #44034E and #0D4E03. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#030D4E #44034E #4E4403 #0D4E03

Tints

Mixing #030D4E with white in 20% steps produces this scale. The first mixture, #353D71, keeps 80% of the original. By #CDCFDC, the mixture is 80% white.

#030D4E #353D71 #686E95 #9A9EB8 #CDCFDC #FFFFFF

Shades

Mixing #030D4E with black in 20% steps produces this scale. The first mixture, #020A3E, keeps 80% of the original. By #010310, the mixture is 80% black.

#030D4E #020A3E #02082F #01051F #010310 #000000

Tones

Mixing #030D4E with middle gray in 20% steps produces this scale. The first mixture, #1C2458, keeps 80% of the original. By #676976, the mixture is 80% middle gray.

#030D4E #1C2458 #353B62 #4E526C #676976 #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

#030D4E

RGB

rgb(3 13 78)

HSL

hsl(232.000 92.593% 15.882%)

CSS example

.color-sample {
  background-color: #030D4E;
  color: #FFFFFF;
}

Channel breakdown

RGB

#030D4E uses 3 red, 13 green and 78 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 1.2%

Green 5.1%

Blue 30.6%

CMYK

A simple CMYK estimate for #030D4E is 96.2% cyan, 83.3% magenta, 0.0% yellow and 69.4% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 96.2%

Magenta 83.3%

Yellow 0.0%

Black 69.4%

Nearby colors

The nearest shorthand match is #001155. Its matching digit pairs let you write it as #015 in CSS. For a modern design, keep #030D4E when you want an exact match. Use its web-safe neighbor, #000066, when matching a legacy palette of 216 colors.

Nearest shorthand: #001155 Nearest web-safe: #000066

Gradient to complement

#030D4E #101642 #1C1F35 #292929 #35321C #423B10 #4E4403

Color vision previews

Compare how #030D4E 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.

#001B50

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.

#00134D

Tritanopia

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

#00212D

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.

#00164F

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.

#00124D

Tritanomaly (50%)

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

#001544

Grayscale (luminance)

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

#171717

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.

#0F133A

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 0.00091 G 0.00402 B 0.07619

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 0.01891 G 0.04984 B 0.29270

Linear Display P3

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

R 0.00146 G 0.00392 B 0.06968

CIE xyY

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

x 0.160 y 0.088 Y 0.857

CMY

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

C % 98.824 M % 94.902 Y % 69.412

Binary RGB

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

00000011 00001101 01001110