#BF4D21

sRGB: 191 / 77 / 33

Ancient mountains reshape eternity
Sleeping valleys illuminate forgotten empires
Distant echoes surrender to silence

#BF4D21 belongs to the orange family. Its hex code tells a screen to mix 191 red, 77 green and 33 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 16.7° lands in the orange region. Its 70.5% 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, white has the clearer light-to-dark separation on this background (4.89:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 191, 77, 33
HSL: 16.71°, 70.54%, 43.92%
HSV / HSB: 16.71°, 82.72%, 74.90%
CMYK (approx.): 0.00%, 59.69%, 82.72%, 25.10%
CIE XYZ (D65, Y = 100 for white): 24.414, 16.496, 3.337
CIELAB (D65, 2° observer): 47.618, 43.620, 47.100
WCAG relative luminance: 0.16494
24-bit decimal: 12537121

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 #BF4D21 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: 4.30:1

Normal text: Fail
Large text: AA

White text: 4.89:1

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.

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

#2193BF sits half a turn (180°) from #BF4D21 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.

#BF4D21 #2193BF

Analogous

#BF2144 and #BF9C21 sit 30° to either side of #BF4D21. 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.

#BF2144 #BF4D21 #BF9C21

Triadic

#BF4D21, #21BF4D and #4D21BF are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#BF4D21 #21BF4D #4D21BF

Split complementary

Start at #BF4D21 and look across the wheel. #21BF9C and #2144BF sit 30° to either side of its exact opposite, giving you two different accent choices.

#BF4D21 #21BF9C #2144BF

Square

Starting with #BF4D21, each quarter turn (90°) takes you to the next hue: #44BF21, #2193BF, then #9C21BF. Across the square, #BF4D21 pairs with #2193BF, and #44BF21 with #9C21BF.

#BF4D21 #44BF21 #2193BF #9C21BF

Tetradic

#BF4D21 and #2193BF are opposites, as are #93BF21 and #4D21BF. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#BF4D21 #93BF21 #2193BF #4D21BF

Tints

Mixing #BF4D21 with white in 20% steps produces this scale. The first mixture, #CC714D, keeps 80% of the original. By #F2DBD3, the mixture is 80% white.

#BF4D21 #CC714D #D9947A #E5B8A6 #F2DBD3 #FFFFFF

Shades

Mixing #BF4D21 with black in 20% steps produces this scale. The first mixture, #993E1A, keeps 80% of the original. By #260F07, the mixture is 80% black.

#BF4D21 #993E1A #732E14 #4C1F0D #260F07 #000000

Tones

Mixing #BF4D21 with middle gray in 20% steps produces this scale. The first mixture, #B25734, keeps 80% of the original. By #8D766D, the mixture is 80% middle gray.

#BF4D21 #B25734 #A66147 #996C5A #8D766D #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

#BF4D21

RGB

rgb(191 77 33)

HSL

hsl(16.709 70.536% 43.922%)

CSS example

.color-sample {
  background-color: #BF4D21;
  color: #FFFFFF;
}

Channel breakdown

RGB

#BF4D21 uses 191 red, 77 green and 33 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 74.9%

Green 30.2%

Blue 12.9%

CMYK

A simple CMYK estimate for #BF4D21 is 0.0% cyan, 59.7% magenta, 82.7% yellow and 25.1% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 59.7%

Yellow 82.7%

Black 25.1%

Nearby colors

The nearest shorthand match is #BB5522. Its matching digit pairs let you write it as #B52 in CSS. For a modern design, keep #BF4D21 when you want an exact match. Use its web-safe neighbor, #CC6633, when matching a legacy palette of 216 colors.

Nearest shorthand: #BB5522 Nearest web-safe: #CC6633

Gradient to complement

#BF4D21 #A5593B #8A6456 #707070 #567C8A #3B87A5 #2193BF

Color vision previews

Compare how #BF4D21 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.

#6D611A

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.

#897B1C

Tritanopia

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

#D23144

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.

#925E1A

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.

#9B6D1C

Tritanomaly (50%)

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

#C14A33

Grayscale (luminance)

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

#717171

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.

#9E6155

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 0.52100 G 0.07421 B 0.01521

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 0.69555 G 0.33011 B 0.18324

Linear Display P3

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

R 0.44167 G 0.08904 B 0.02812

CIE xyY

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

x 0.552 y 0.373 Y 16.496

CMY

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

C % 25.098 M % 69.804 Y % 87.059

Binary RGB

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

10111111 01001101 00100001