#1B61BA

sRGB · 27 / 97 / 186

#1B61BA belongs to the azure family. Its hex code tells a screen to mix 27 red, 97 green and 186 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 213.6° lands in the azure region. Its 74.6% saturation makes it strong in color at this lightness. HSL lightness is 41.8% 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 (6.06:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 27, 97, 186
HSL: 213.58°, 74.65%, 41.76%
HSV / HSB: 213.58°, 85.48%, 72.94%
CMYK (approx.): 85.48%, 47.85%, 0.00%, 27.06%
CIE XYZ (D65, Y = 100 for white): 13.588, 12.327, 48.119
CIELAB (D65, 2° observer): 41.731, 12.606, -52.794
WCAG relative luminance: 0.12328
24-bit decimal: 1794490

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 #1B61BA 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 · 3.47:1

Normal text: Fail
Large text: AA

White text · 6.06:1

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

#BA741B sits half a turn (180°) from #1B61BA 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.

#1B61BA #BA741B

Analogous

#1BB1BA and #241BBA sit 30° to either side of #1B61BA. 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.

#1BB1BA #1B61BA #241BBA

Triadic

#1B61BA, #BA1B61 and #61BA1B are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#1B61BA #BA1B61 #61BA1B

Split complementary

Start at #1B61BA and look across the wheel. #BA241B and #B1BA1B sit 30° to either side of its exact opposite, giving you two different accent choices.

#1B61BA #BA241B #B1BA1B

Square

Starting with #1B61BA, each quarter turn (90°) takes you to the next hue: #BA1BB1, #BA741B, then #1BBA24. Across the square, #1B61BA pairs with #BA741B, and #BA1BB1 with #1BBA24.

#1B61BA #BA1BB1 #BA741B #1BBA24

Tetradic

#1B61BA and #BA741B are opposites, as are #741BBA and #61BA1B. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#1B61BA #741BBA #BA741B #61BA1B

Tints

Mixing #1B61BA with white in 20% steps produces this scale. The first mixture, #4981C8, keeps 80% of the original. By #D1DFF1, the mixture is 80% white.

#1B61BA #4981C8 #76A0D6 #A4C0E3 #D1DFF1 #FFFFFF

Shades

Mixing #1B61BA with black in 20% steps produces this scale. The first mixture, #164E95, keeps 80% of the original. By #051325, the mixture is 80% black.

#1B61BA #164E95 #103A70 #0B274A #051325 #000000

Tones

Mixing #1B61BA with middle gray in 20% steps produces this scale. The first mixture, #2F67AE, keeps 80% of the original. By #6C7A8C, the mixture is 80% middle gray.

#1B61BA #2F67AE #436DA3 #587497 #6C7A8C #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

#1B61BA

RGB

rgb(27 97 186)

HSL

hsl(213.585 74.648% 41.765%)

CSS example

.color-sample {
  background-color: #1B61BA;
  color: #FFFFFF;
}

Channel breakdown

RGB

#1B61BA uses 27 red, 97 green and 186 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 10.6%

Green 38.0%

Blue 72.9%

CMYK

A simple CMYK estimate for #1B61BA is 85.5% cyan, 47.8% magenta, 0.0% yellow and 27.1% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 85.5%

Magenta 47.8%

Yellow 0.0%

Black 27.1%

Nearby colors

The nearest shorthand match is #2266BB. Its matching digit pairs let you write it as #26B in CSS. For a modern design, keep #1B61BA when you want an exact match. Use its web-safe neighbor, #3366CC, when matching a legacy palette of 216 colors.

Nearest shorthand · #2266BB Nearest web-safe · #3366CC

Gradient to complement

#1B61BA #3664A0 #506785 #6B6B6B #856E50 #A07136 #BA741B

Color vision previews

Compare how #1B61BA 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.

#2E6ABD

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.

#005CB8

Tritanopia

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

#007784

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.

#2566BC

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.

#085FB9

Tritanomaly (50%)

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

#0068A9

Grayscale (luminance)

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

#626262

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.

#496296

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 0.01096 G 0.11954 B 0.49102

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 0.19055 G 0.37487 B 0.70555

Linear Display P3

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

R 0.03024 G 0.11593 B 0.45593

CIE xyY

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

x 0.184 y 0.167 Y 12.327

CMY

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

C % 89.412 M % 61.961 Y % 27.059

Binary RGB

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

00011011 01100001 10111010