Recognised as Colour

#B23120

#B23120
Red
Dark
Nearest: Firebrick

#B23120 is a red with RGB values 178, 49, 32 and HSL 7°, 70%, 41%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#B23120#B23120

HEX#B23120

RGBrgb(178, 49, 32)

RGB (0–1)0.698, 0.1922, 0.1255

RGB percentages69.8%, 19.2%, 12.5%

HSLhsl(7, 69.5%, 41.2%)

HSV / HSBhsv(7, 82%, 69.8%)

CMYK0%, 72.5%, 82%, 30.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,677,984

CSS custom property--colour: #B23120;

Brightness & contrast

Relative luminance0.11766WCAG 2.x, 0 is black and 1 is white

Perceived brightness104.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.26:1

Contrast with white6.26:1WCAG normal text: AA

Contrast with black3.35:1WCAG normal text: Fail

Greyscale equivalent#4B4B4B

Inverted#4DCEDF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#584E1Dno red cones; affects about 1% of men; ΔE 55.2 from the original

Deuteranopia#786B1Ano green cones; the most common form, about 1% of men; ΔE 55.6 from the original

Tritanopia#C4002Eno blue cones; rare, and affects men and women equally; ΔE 16.9 from the original

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

Contrast with white, large text6.26:1WCAG large text: AAA

Contrast with black, large text3.35:1WCAG large text: AA

Named colours

Firebrick · ΔE 5.9 Brown · ΔE 10.5 Dark red · ΔE 12.8 Maroon · ΔE 15.8 Crimson · ΔE 22 Sienna · ΔE 22.4

Nearest named CSS colourFirebrick (#B22222)ΔE 5.92, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#20A1B2

Analogous#B22058, #B27A20

Triadic#20B231, #3120B2

Split complementary#20B27A, #2058B2

Tetradic#58B220, #20A1B2, #7A20B2

Tints, shades & saturation

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

Lighter +40%#F0B5AE

Lighter +30%#E98E82

Lighter +20%#E16757

Lighter +10%#D9402C

Darker −10%#872518

Darker −20%#5C1910

Darker −30%#300D09

Darker −40%#050101

More saturated +25%#CC1D06

Less saturated −25%#98453A

Channel breakdown

R178

G49

B32

Red178 (69.8%)

Green49 (19.2%)

Blue32 (12.5%)

Hue6.99°

Saturation (HSL)69.52%

Lightness41.18%

Dominant channelRed

Hex per channelR B2 · G 31 · B 20

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B23120 (chemical formula)

Formula
249,927.2 g/mol
23120 atoms

B23120 has a molar mass of 249,927.2 g/mol, made up of 23120 atoms across 1 element: 23120 × B.

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Molar mass

Molar mass249,927.2 g/mol

Total atoms per molecule23120

Distinct elements1

Mass of one molecule4.1501388 × 10^-19 g

Molecules per gram2.409558 × 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 × 23120)249,927.2 g/mol, 100%

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Elements in this formula

Boron

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