#75B310

sRGB: 117 / 179 / 16

#75B310 belongs to the yellow-green family. Its hex code tells a screen to mix 117 red, 179 green and 16 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 82.8° lands in the yellow-green region. Its 83.6% saturation makes it strong in color at this lightness. HSL lightness is 38.2% 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 (8.21:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 117, 179, 16
HSL: 82.82°, 83.59%, 38.24%
HSV / HSB: 82.82°, 91.06%, 70.20%
CMYK (approx.): 34.64%, 0.00%, 91.06%, 29.80%
CIE XYZ (D65, Y = 100 for white): 23.549, 36.059, 6.210
CIELAB (D65, 2° observer): 66.565, -41.845, 65.375
WCAG relative luminance: 0.36060
24-bit decimal: 7713552

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 #75B310 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: 8.21:1

Normal text: AAA
Large text: AAA

White text: 2.56:1

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

#4E10B3 sits half a turn (180°) from #75B310 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.

#75B310 #4E10B3

Analogous

#B39F10 and #24B310 sit 30° to either side of #75B310. 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.

#B39F10 #75B310 #24B310

Triadic

#75B310, #1075B3 and #B31075 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#75B310 #1075B3 #B31075

Split complementary

Start at #75B310 and look across the wheel. #1024B3 and #9F10B3 sit 30° to either side of its exact opposite, giving you two different accent choices.

#75B310 #1024B3 #9F10B3

Square

Starting with #75B310, each quarter turn (90°) takes you to the next hue: #10B39F, #4E10B3, then #B31024. Across the square, #75B310 pairs with #4E10B3, and #10B39F with #B31024.

#75B310 #10B39F #4E10B3 #B31024

Tetradic

#75B310 and #4E10B3 are opposites, as are #10B34E and #B31075. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#75B310 #10B34E #4E10B3 #B31075

Tints

Mixing #75B310 with white in 20% steps produces this scale. The first mixture, #91C240, keeps 80% of the original. By #E3F0CF, the mixture is 80% white.

#75B310 #91C240 #ACD170 #C8E19F #E3F0CF #FFFFFF

Shades

Mixing #75B310 with black in 20% steps produces this scale. The first mixture, #5E8F0D, keeps 80% of the original. By #172403, the mixture is 80% black.

#75B310 #5E8F0D #466B0A #2F4806 #172403 #000000

Tones

Mixing #75B310 with middle gray in 20% steps produces this scale. The first mixture, #77A926, keeps 80% of the original. By #7E8A6A, the mixture is 80% middle gray.

#75B310 #77A926 #799F3D #7C9453 #7E8A6A #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

#75B310

RGB

rgb(117 179 16)

HSL

hsl(82.822 83.590% 38.235%)

CSS example

.color-sample {
  background-color: #75B310;
  color: #000000;
}

Channel breakdown

RGB

#75B310 uses 117 red, 179 green and 16 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 45.9%

Green 70.2%

Blue 6.3%

CMYK

A simple CMYK estimate for #75B310 is 34.6% cyan, 0.0% magenta, 91.1% yellow and 29.8% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 34.6%

Magenta 0.0%

Yellow 91.1%

Black 29.8%

Nearby colors

The nearest shorthand match is #77BB11. Its matching digit pairs let you write it as #7B1 in CSS. For a modern design, keep #75B310 when you want an exact match. Use its web-safe neighbor, #66CC00, when matching a legacy palette of 216 colors.

Nearest shorthand: #77BB11 Nearest web-safe: #66CC00

Gradient to complement

#75B310 #6F982B #687D46 #626262 #5B467D #552B98 #4E10B3

Color vision previews

Compare how #75B310 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.

#BCA500

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.

#B3A029

Tritanopia

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

#78AB98

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.

#A7A900

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.

#A4A721

Tritanomaly (50%)

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

#7AAF60

Grayscale (luminance)

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

#A2A2A2

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.

#8EAB77

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 0.17789 G 0.45079 B 0.00518

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 0.51307 G 0.69559 B 0.22204

Linear Display P3

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

R 0.22634 G 0.44173 B 0.04039

CIE xyY

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

x 0.358 y 0.548 Y 36.059

CMY

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

C % 54.118 M % 29.804 Y % 93.725

Binary RGB

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

01110101 10110011 00010000