#330C87

sRGB · 51 / 12 / 135

#330C87 belongs to the violet family. Its hex code tells a screen to mix 51 red, 12 green and 135 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 259.0° lands in the violet region. Its 83.7% saturation makes it strong in color at this lightness. HSL lightness is 28.8% 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 (13.61:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 51, 12, 135
HSL: 259.02°, 83.67%, 28.82%
HSV / HSB: 259.02°, 91.11%, 52.94%
CMYK (approx.): 62.22%, 91.11%, 0.00%, 47.06%
CIE XYZ (D65, Y = 100 for white): 5.869, 2.716, 23.137
CIELAB (D65, 2° observer): 18.868, 47.337, -59.222
WCAG relative luminance: 0.02716
24-bit decimal: 3345543

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 #330C87 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 · 1.54:1

Normal text: Fail
Large text: Fail

White text · 13.61:1

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

#60870C sits half a turn (180°) from #330C87 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.

#330C87 #60870C

Analogous

#0C2387 and #700C87 sit 30° to either side of #330C87. 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.

#0C2387 #330C87 #700C87

Triadic

#330C87, #87330C and #0C8733 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#330C87 #87330C #0C8733

Split complementary

Start at #330C87 and look across the wheel. #87700C and #23870C sit 30° to either side of its exact opposite, giving you two different accent choices.

#330C87 #87700C #23870C

Square

Starting with #330C87, each quarter turn (90°) takes you to the next hue: #870C23, #60870C, then #0C8770. Across the square, #330C87 pairs with #60870C, and #870C23 with #0C8770.

#330C87 #870C23 #60870C #0C8770

Tetradic

#330C87 and #60870C are opposites, as are #870C60 and #0C8733. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#330C87 #870C60 #60870C #0C8733

Tints

Mixing #330C87 with white in 20% steps produces this scale. The first mixture, #5C3D9F, keeps 80% of the original. By #D6CEE7, the mixture is 80% white.

#330C87 #5C3D9F #856DB7 #AD9ECF #D6CEE7 #FFFFFF

Shades

Mixing #330C87 with black in 20% steps produces this scale. The first mixture, #290A6C, keeps 80% of the original. By #0A021B, the mixture is 80% black.

#330C87 #290A6C #1F0751 #140536 #0A021B #000000

Tones

Mixing #330C87 with middle gray in 20% steps produces this scale. The first mixture, #422386, keeps 80% of the original. By #716981, the mixture is 80% middle gray.

#330C87 #422386 #523A84 #615283 #716981 #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

#330C87

RGB

rgb(51 12 135)

HSL

hsl(259.024 83.673% 28.824%)

CSS example

.color-sample {
  background-color: #330C87;
  color: #FFFFFF;
}

Channel breakdown

RGB

#330C87 uses 51 red, 12 green and 135 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 20.0%

Green 4.7%

Blue 52.9%

CMYK

A simple CMYK estimate for #330C87 is 62.2% cyan, 91.1% magenta, 0.0% yellow and 47.1% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 62.2%

Magenta 91.1%

Yellow 0.0%

Black 47.1%

Nearby colors

The nearest shorthand match is #331188. Its matching digit pairs let you write it as #318 in CSS. For a modern design, keep #330C87 when you want an exact match. Use its web-safe neighbor, #330099, when matching a legacy palette of 216 colors.

Nearest shorthand · #331188 Nearest web-safe · #330099

Gradient to complement

#330C87 #3B2173 #42355E #4A4A4A #515E35 #597321 #60870C

Color vision previews

Compare how #330C87 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.

#00318A

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.

#002A85

Tritanopia

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

#00364E

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.

#002888

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.

#002486

Tritanomaly (50%)

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

#2A2176

Grayscale (luminance)

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

#2E2E2E

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.

#312167

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 0.03310 G 0.00368 B 0.24228

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 0.18239 G 0.05759 B 0.50791

Linear Display P3

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

R 0.02788 G 0.00465 B 0.22143

CIE xyY

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

x 0.185 y 0.086 Y 2.716

CMY

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

C % 80.000 M % 95.294 Y % 47.059

Binary RGB

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

00110011 00001100 10000111