Recognised as Colour

#B54444

#B54444
Red
Dark
Nearest: Indian red

#B54444 is a red with RGB values 181, 68, 68 and HSL 0°, 45%, 49%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#B54444#B54444

HEX#B54444

RGBrgb(181, 68, 68)

RGB (0–1)0.7098, 0.2667, 0.2667

RGB percentages71%, 26.7%, 26.7%

HSLhsl(0, 45.4%, 48.8%)

HSV / HSBhsv(0, 62.4%, 71%)

CMYK0%, 62.4%, 62.4%, 29%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,879,492

CSS custom property--colour: #B54444;

Brightness & contrast

Relative luminance0.14375WCAG 2.x, 0 is black and 1 is white

Perceived brightness114.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.42:1

Contrast with white5.42:1WCAG normal text: AA

Contrast with black3.88:1WCAG normal text: Fail

Greyscale equivalent#5C5C5C

Inverted#4ABBBB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#615B43no red cones; affects about 1% of men; ΔE 49 from the original

Deuteranopia#7D7341no green cones; the most common form, about 1% of men; ΔE 49.8 from the original

Tritanopia#C62D45no blue cones; rare, and affects men and women equally; ΔE 14.3 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text5.42:1WCAG large text: AAA

Contrast with black, large text3.88:1WCAG large text: AA

Named colours

Indian red · ΔE 9 Brown · ΔE 10.3 Firebrick · ΔE 17.6 Sienna · ΔE 20 Light coral · ΔE 22.1 Salmon · ΔE 23

Nearest named CSS colourIndian red (#CD5C5C)ΔE 8.97, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#44B5B5

Analogous#B5447D, #B57D44

Triadic#44B544, #4444B5

Split complementary#44B57D, #447DB5

Tetradic#7DB544, #44B5B5, #7D44B5

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#EFD6D6

Lighter +30%#E2B0B0

Lighter +20%#D48B8B

Lighter +10%#C66666

Darker −10%#903636

Darker −20%#6B2828

Darker −30%#461A1A

Darker −40%#210C0C

More saturated +25%#D42525

Less saturated −25%#966363

Channel breakdown

R181

G68

B68

Red181 (71%)

Green68 (26.7%)

Blue68 (26.7%)

Hue0°

Saturation (HSL)45.38%

Lightness48.82%

Dominant channelRed

Hex per channelR B5 · G 44 · B 44

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B54444 (chemical formula)

Formula
588,539.64 g/mol
54444 atoms

B54444 has a molar mass of 588,539.64 g/mol, made up of 54444 atoms across 1 element: 54444 × B.

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Molar mass

Molar mass588,539.64 g/mol

Total atoms per molecule54444

Distinct elements1

Mass of one molecule9.7729306 × 10^-19 g

Molecules per gram1.0232345 × 10^18

Name

NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show

Composition by mass

B100%

Boron (B × 54444)588,539.64 g/mol, 100%

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Elements in this formula

Boron

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