Recognised as Colour

#B4442B

#B4442B
Red
Dark
Nearest: Brown

#B4442B is a red with RGB values 180, 68, 43 and HSL 11°, 61%, 44%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#B4442B#B4442B

HEX#B4442B

RGBrgb(180, 68, 43)

RGB (0–1)0.7059, 0.2667, 0.1686

RGB percentages70.6%, 26.7%, 16.9%

HSLhsl(10.9, 61.4%, 43.7%)

HSV / HSBhsv(10.9, 76.1%, 70.6%)

CMYK0%, 62.2%, 76.1%, 29.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,813,931

CSS custom property--colour: #B4442B;

Brightness & contrast

Relative luminance0.14012WCAG 2.x, 0 is black and 1 is white

Perceived brightness112.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.52:1

Contrast with white5.52:1WCAG normal text: AA

Contrast with black3.8:1WCAG normal text: Fail

Greyscale equivalent#5A5A5A

Inverted#4BBBD4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#635928no red cones; affects about 1% of men; ΔE 48.3 from the original

Deuteranopia#7F7227no green cones; the most common form, about 1% of men; ΔE 48.7 from the original

Tritanopia#C6283Fno blue cones; rare, and affects men and women equally; ΔE 20.3 from the original

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

Contrast with white, large text5.52:1WCAG large text: AAA

Contrast with black, large text3.8:1WCAG large text: AA

Named colours

Brown · ΔE 11.6 Firebrick · ΔE 12.9 Sienna · ΔE 15 Dark red · ΔE 17.8 Indian red · ΔE 18.5 Maroon · ΔE 19.1

Nearest named CSS colourBrown (#A52A2A)ΔE 11.58, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2B9BB4

Analogous#B42B56, #B4882B

Triadic#2BB444, #442BB4

Split complementary#2BB488, #2B57B4

Tetradic#57B42B, #2B9BB4, #892BB4

Tints, shades & saturation

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

Lighter +40%#EFC5BC

Lighter +30%#E5A293

Lighter +20%#DB7E6A

Lighter +10%#D15B41

Darker −10%#8B3421

Darker −20%#622517

Darker −30%#39150D

Darker −40%#0F0604

More saturated +25%#D0320F

Less saturated −25%#985647

Channel breakdown

R180

G68

B43

Red180 (70.6%)

Green68 (26.7%)

Blue43 (16.9%)

Hue10.95°

Saturation (HSL)61.43%

Lightness43.73%

Dominant channelRed

Hex per channelR B4 · G 44 · B 2B

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

B4442B (chemical formula)

Formula
48,028.83 g/mol
4443 atoms

B4442B has a molar mass of 48,028.83 g/mol, made up of 4443 atoms across 1 element: 4443 × B.

Open this reading on its own page →

Molar mass

Molar mass48,028.83 g/mol

Total atoms per molecule4443

Distinct elements1

Mass of one molecule7.9753749 × 10^-20 g

Molecules per gram1.2538596 × 10^19

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 × 4443)48,028.83 g/mol, 100%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Boron

Nerdulate something else

Nothing in mind? Surprise me · today’s page