Recognised as Colour

#B13845

#B13845
Red
Dark
Nearest: Brown

#B13845 is a red with RGB values 177, 56, 69 and HSL 354°, 52%, 46%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#B13845#B13845

HEX#B13845

RGBrgb(177, 56, 69)

RGB (0–1)0.6941, 0.2196, 0.2706

RGB percentages69.4%, 22%, 27.1%

HSLhsl(353.6, 51.9%, 45.7%)

HSV / HSBhsv(353.6, 68.4%, 69.4%)

CMYK0%, 68.4%, 61%, 30.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,614,277

CSS custom property--colour: #B13845;

Brightness & contrast

Relative luminance0.12605WCAG 2.x, 0 is black and 1 is white

Perceived brightness108.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.96:1

Contrast with white5.96:1WCAG normal text: AA

Contrast with black3.52:1WCAG normal text: Fail

Greyscale equivalent#535353

Inverted#4EC7BA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#575345no red cones; affects about 1% of men; ΔE 52.5 from the original

Deuteranopia#766D42no green cones; the most common form, about 1% of men; ΔE 53.3 from the original

Tritanopia#C21B3Eno 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 text5.96:1WCAG large text: AAA

Contrast with black, large text3.52:1WCAG large text: AA

Named colours

Brown · ΔE 11.3 Indian red · ΔE 12.4 Firebrick · ΔE 18.7 Maroon · ΔE 24.4 Light coral · ΔE 25 Dark red · ΔE 25.3

Nearest named CSS colourBrown (#A52A2A)ΔE 11.29, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#38B1A4

Analogous#B13882, #B16838

Triadic#45B138, #3845B1

Split complementary#38B168, #3881B1

Tetradic#81B138, #38B1A4, #6738B1

Tints, shades & saturation

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

Lighter +40%#EDC8CC

Lighter +30%#E1A1A8

Lighter +20%#D57A84

Lighter +10%#C95360

Darker −10%#8A2C36

Darker −20%#641F27

Darker −30%#3D1318

Darker −40%#160709

More saturated +25%#CE1B2E

Less saturated −25%#94555C

Channel breakdown

R177

G56

B69

Red177 (69.4%)

Green56 (22%)

Blue69 (27.1%)

Hue353.55°

Saturation (HSL)51.93%

Lightness45.69%

Dominant channelRed

Hex per channelR B1 · G 38 · B 45

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

B13845 (chemical formula)

Formula
149,664.45 g/mol
13845 atoms

B13845 has a molar mass of 149,664.45 g/mol, made up of 13845 atoms across 1 element: 13845 × B.

Open this reading on its own page →

Molar mass

Molar mass149,664.45 g/mol

Total atoms per molecule13845

Distinct elements1

Mass of one molecule2.4852367 × 10^-19 g

Molecules per gram4.0237617 × 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 × 13845)149,664.45 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