#03DD67

sRGB: 3 / 221 / 103

#03DD67 belongs to the green-cyan family. Its hex code tells a screen to mix 3 red, 221 green and 103 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 147.5° lands in the green-cyan region. Its 97.3% saturation makes it strong in color at this lightness. HSL lightness is 43.9% 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 (11.54:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 3, 221, 103
HSL: 147.52°, 97.32%, 43.92%
HSV / HSB: 147.52°, 98.64%, 86.67%
CMYK (approx.): 98.64%, 0.00%, 53.39%, 13.33%
CIE XYZ (D65, Y = 100 for white): 28.341, 52.709, 21.513
CIELAB (D65, 2° observer): 77.703, -69.854, 45.079
WCAG relative luminance: 0.52712
24-bit decimal: 253287

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 #03DD67 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: 11.54:1

Normal text: AAA
Large text: AAA

White text: 1.82:1

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

#DD0379 sits half a turn (180°) from #03DD67 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.

#03DD67 #DD0379

Analogous

#0CDD03 and #03DDD4 sit 30° to either side of #03DD67. 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.

#0CDD03 #03DD67 #03DDD4

Triadic

#03DD67, #6703DD and #DD6703 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#03DD67 #6703DD #DD6703

Split complementary

Start at #03DD67 and look across the wheel. #D403DD and #DD030C sit 30° to either side of its exact opposite, giving you two different accent choices.

#03DD67 #D403DD #DD030C

Square

Starting with #03DD67, each quarter turn (90°) takes you to the next hue: #030CDD, #DD0379, then #DDD403. Across the square, #03DD67 pairs with #DD0379, and #030CDD with #DDD403.

#03DD67 #030CDD #DD0379 #DDD403

Tetradic

#03DD67 and #DD0379 are opposites, as are #0379DD and #DD6703. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#03DD67 #0379DD #DD0379 #DD6703

Tints

Mixing #03DD67 with white in 20% steps produces this scale. The first mixture, #35E485, keeps 80% of the original. By #CDF8E1, the mixture is 80% white.

#03DD67 #35E485 #68EBA4 #9AF1C2 #CDF8E1 #FFFFFF

Shades

Mixing #03DD67 with black in 20% steps produces this scale. The first mixture, #02B152, keeps 80% of the original. By #012C15, the mixture is 80% black.

#03DD67 #02B152 #02853E #015829 #012C15 #000000

Tones

Mixing #03DD67 with middle gray in 20% steps produces this scale. The first mixture, #1CCA6C, keeps 80% of the original. By #67937B, the mixture is 80% middle gray.

#03DD67 #1CCA6C #35B871 #4EA576 #67937B #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

#03DD67

RGB

rgb(3 221 103)

HSL

hsl(147.523 97.321% 43.922%)

CSS example

.color-sample {
  background-color: #03DD67;
  color: #000000;
}

Channel breakdown

RGB

#03DD67 uses 3 red, 221 green and 103 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 1.2%

Green 86.7%

Blue 40.4%

CMYK

A simple CMYK estimate for #03DD67 is 98.6% cyan, 0.0% magenta, 53.4% yellow and 13.3% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 98.6%

Magenta 0.0%

Yellow 53.4%

Black 13.3%

Nearby colors

The nearest shorthand match is #00DD66. Its matching digit pairs let you write it as #0D6 in CSS. For a modern design, keep #03DD67 when you want an exact match. Use its web-safe neighbor, #00CC66, when matching a legacy palette of 216 colors.

Nearest shorthand: #00DD66 Nearest web-safe: #00CC66

Gradient to complement

#03DD67 #27B96A #4C946D #707070 #944C73 #B92776 #DD0379

Color vision previews

Compare how #03DD67 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.

#DEC95C

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.

#CABA70

Tritanopia

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

#00D9C2

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.

#B7CE64

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.

#ADC76D

Tritanomaly (50%)

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

#20DA90

Grayscale (luminance)

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

#C0C0C0

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.

#8CCF9C

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 0.72306 B 0.13563

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 0.39461 G 0.85381 B 0.45637

Linear Display P3

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

R 0.12912 G 0.69908 B 0.17586

CIE xyY

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

x 0.276 y 0.514 Y 52.709

CMY

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

C % 98.824 M % 13.333 Y % 59.608

Binary RGB

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

00000011 11011101 01100111