#99E607

sRGB · 153 / 230 / 7

#99E607 belongs to the yellow-green family. Its hex code tells a screen to mix 153 red, 230 green and 7 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 80.7° lands in the yellow-green region. Its 94.1% saturation makes it strong in color at this lightness. HSL lightness is 46.5% 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 (13.68:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 153, 230, 7
HSL: 80.72°, 94.09%, 46.47%
HSV / HSB: 80.72°, 96.96%, 90.20%
CMYK (approx.): 33.48%, 0.00%, 96.96%, 9.80%
CIE XYZ (D65, Y = 100 for white): 41.470, 63.380, 10.250
CIELAB (D65, 2° observer): 83.642, -50.258, 80.823
WCAG relative luminance: 0.63381
24-bit decimal: 10085895

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 #99E607 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 · 13.68:1

Normal text: AAA
Large text: AAA

White text · 1.54:1

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. 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

#5407E6 sits half a turn (180°) from #99E607 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.

#99E607 #5407E6

Analogous

#E6C407 and #29E607 sit 30° to either side of #99E607. 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.

#E6C407 #99E607 #29E607

Triadic

#99E607, #0799E6 and #E60799 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#99E607 #0799E6 #E60799

Split complementary

Start at #99E607 and look across the wheel. #0729E6 and #C407E6 sit 30° to either side of its exact opposite, giving you two different accent choices.

#99E607 #0729E6 #C407E6

Square

Starting with #99E607, each quarter turn (90°) takes you to the next hue: #07E6C4, #5407E6, then #E60729. Across the square, #99E607 pairs with #5407E6, and #07E6C4 with #E60729.

#99E607 #07E6C4 #5407E6 #E60729

Tetradic

#99E607 and #5407E6 are opposites, as are #07E654 and #E60799. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#99E607 #07E654 #5407E6 #E60799

Tints

Mixing #99E607 with white in 20% steps produces this scale. The first mixture, #ADEB39, keeps 80% of the original. By #EBFACD, the mixture is 80% white.

#99E607 #ADEB39 #C2F06A #D6F59C #EBFACD #FFFFFF

Shades

Mixing #99E607 with black in 20% steps produces this scale. The first mixture, #7AB806, keeps 80% of the original. By #1F2E01, the mixture is 80% black.

#99E607 #7AB806 #5C8A04 #3D5C03 #1F2E01 #000000

Tones

Mixing #99E607 with middle gray in 20% steps produces this scale. The first mixture, #94D21F, keeps 80% of the original. By #859468, the mixture is 80% middle gray.

#99E607 #94D21F #8FBD37 #8AA950 #859468 #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

#99E607

RGB

rgb(153 230 7)

HSL

hsl(80.717 94.093% 46.471%)

CSS example

.color-sample {
  background-color: #99E607;
  color: #000000;
}

Channel breakdown

RGB

#99E607 uses 153 red, 230 green and 7 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 60.0%

Green 90.2%

Blue 2.7%

CMYK

A simple CMYK estimate for #99E607 is 33.5% cyan, 0.0% magenta, 97.0% yellow and 9.8% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 33.5%

Magenta 0.0%

Yellow 97.0%

Black 9.8%

Nearby colors

The nearest shorthand match is #99EE00. Its matching digit pairs let you write it as #9E0 in CSS. For a modern design, keep #99E607 when you want an exact match. Use its web-safe neighbor, #99FF00, when matching a legacy palette of 216 colors.

Nearest shorthand · #99EE00 Nearest web-safe · #99FF00

Gradient to complement

#99E607 #8EC12C #829C51 #777777 #6B519C #602CC1 #5407E6

Color vision previews

Compare how #99E607 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.

#F1D400

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.

#E7CF32

Tritanopia

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

#9DDBC4

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.

#D8DA00

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.

#D4D727

Tritanomaly (50%)

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

#9FE17C

Grayscale (luminance)

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

#D0D0D0

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.

#B7DC99

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 0.31855 G 0.79130 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 0.66704 G 0.89401 B 0.28205

Linear Display P3

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

R 0.40248 G 0.77561 B 0.06466

CIE xyY

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

x 0.360 y 0.551 Y 63.380

CMY

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

C % 40.000 M % 9.804 Y % 97.255

Binary RGB

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

10011001 11100110 00000111