#223DFD

sRGB · 34 / 61 / 253

#223DFD belongs to the blue family. Its hex code tells a screen to mix 34 red, 61 green and 253 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 232.6° lands in the blue region. Its 98.2% saturation makes it strong in color at this lightness. HSL lightness is 56.3% 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 (6.66:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 34, 61, 253
HSL: 232.60°, 98.21%, 56.27%
HSV / HSB: 232.60°, 86.56%, 99.22%
CMYK (approx.): 86.56%, 75.89%, 0.00%, 0.78%
CIE XYZ (D65, Y = 100 for white): 20.056, 10.769, 93.953
CIELAB (D65, 2° observer): 39.188, 59.795, -95.241
WCAG relative luminance: 0.10769
24-bit decimal: 2244093

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 #223DFD 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 · 3.15:1

Normal text: Fail
Large text: AA

White text · 6.66:1

Normal text: AA
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

#FDE222 sits half a turn (180°) from #223DFD 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.

#223DFD #FDE222

Analogous

#22ABFD and #7422FD sit 30° to either side of #223DFD. 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.

#22ABFD #223DFD #7422FD

Triadic

#223DFD, #FD223D and #3DFD22 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#223DFD #FD223D #3DFD22

Split complementary

Start at #223DFD and look across the wheel. #FD7422 and #ABFD22 sit 30° to either side of its exact opposite, giving you two different accent choices.

#223DFD #FD7422 #ABFD22

Square

Starting with #223DFD, each quarter turn (90°) takes you to the next hue: #FD22AB, #FDE222, then #22FD74. Across the square, #223DFD pairs with #FDE222, and #FD22AB with #22FD74.

#223DFD #FD22AB #FDE222 #22FD74

Tetradic

#223DFD and #FDE222 are opposites, as are #E222FD and #3DFD22. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#223DFD #E222FD #FDE222 #3DFD22

Tints

Mixing #223DFD with white in 20% steps produces this scale. The first mixture, #4E64FD, keeps 80% of the original. By #D3D8FF, the mixture is 80% white.

#223DFD #4E64FD #7A8BFE #A7B1FE #D3D8FF #FFFFFF

Shades

Mixing #223DFD with black in 20% steps produces this scale. The first mixture, #1B31CA, keeps 80% of the original. By #070C33, the mixture is 80% black.

#223DFD #1B31CA #142598 #0E1865 #070C33 #000000

Tones

Mixing #223DFD with middle gray in 20% steps produces this scale. The first mixture, #354AE4, keeps 80% of the original. By #6D7399, the mixture is 80% middle gray.

#223DFD #354AE4 #4858CB #5A65B2 #6D7399 #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

#223DFD

RGB

rgb(34 61 253)

HSL

hsl(232.603 98.206% 56.275%)

CSS example

.color-sample {
  background-color: #223DFD;
  color: #FFFFFF;
}

Channel breakdown

RGB

#223DFD uses 34 red, 61 green and 253 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 13.3%

Green 23.9%

Blue 99.2%

CMYK

A simple CMYK estimate for #223DFD is 86.6% cyan, 75.9% magenta, 0.0% yellow and 0.8% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 86.6%

Magenta 75.9%

Yellow 0.0%

Black 0.8%

Nearby colors

The nearest shorthand match is #2244FF. Its matching digit pairs let you write it as #24F in CSS. For a modern design, keep #223DFD when you want an exact match. Use its web-safe neighbor, #3333FF, when matching a legacy palette of 216 colors.

Nearest shorthand · #2244FF Nearest web-safe · #3333FF

Gradient to complement

#223DFD #4759D9 #6B74B4 #909090 #B4AB6B #D9C747 #FDE222

Color vision previews

Compare how #223DFD 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.

#0067FF

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.

#0051FA

Tritanopia

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

#00789C

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.

#0059FF

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.

#004EFB

Tritanomaly (50%)

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

#0055E0

Grayscale (luminance)

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

#5C5C5C

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.

#464EC3

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 0.01600 G 0.04667 B 0.98225

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 0.15778 G 0.23652 B 0.95376

Linear Display P3

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

R 0.02144 G 0.04565 B 0.89801

CIE xyY

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

x 0.161 y 0.086 Y 10.769

CMY

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

C % 86.667 M % 76.078 Y % 0.784

Binary RGB

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

00100010 00111101 11111101