Recognised as Colour

#BE421B

#BE421B
Red
Dark
Nearest: Firebrick

#BE421B is a red with RGB values 190, 66, 27 and HSL 14°, 75%, 43%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#BE421B#BE421B

HEX#BE421B

RGBrgb(190, 66, 27)

RGB (0–1)0.7451, 0.2588, 0.1059

RGB percentages74.5%, 25.9%, 10.6%

HSLhsl(14.4, 75.1%, 42.5%)

HSV / HSBhsv(14.4, 85.8%, 74.5%)

CMYK0%, 65.3%, 85.8%, 25.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,468,763

CSS custom property--colour: #BE421B;

Brightness & contrast

Relative luminance0.14923WCAG 2.x, 0 is black and 1 is white

Perceived brightness115.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.27:1

Contrast with white5.27:1WCAG normal text: AA

Contrast with black3.98:1WCAG normal text: Fail

Greyscale equivalent#5A5A5A

Inverted#41BDE4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#665A14no red cones; affects about 1% of men; ΔE 52.7 from the original

Deuteranopia#857614no green cones; the most common form, about 1% of men; ΔE 52.9 from the original

Tritanopia#D11D3Bno blue cones; rare, and affects men and women equally; ΔE 24.7 from the original

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

Contrast with white, large text5.27:1WCAG large text: AAA

Contrast with black, large text3.98:1WCAG large text: AA

Named colours

Firebrick · ΔE 14.4 Chocolate · ΔE 17.6 Dark red · ΔE 18.9 Brown · ΔE 19.2 Tomato · ΔE 19.4 Coral · ΔE 21.9

Nearest named CSS colourFirebrick (#B22222)ΔE 14.39, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1B97BE

Analogous#BE1B46, #BE931B

Triadic#1BBE42, #421BBE

Split complementary#1BBE94, #1B45BE

Tetradic#46BE1B, #1B97BE, #941BBE

Tints, shades & saturation

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

Lighter +40%#F4C1B1

Lighter +30%#EE9E84

Lighter +20%#E77A58

Lighter +10%#E1572B

Darker −10%#913215

Darker −20%#65230E

Darker −30%#381308

Darker −40%#0B0402

More saturated +25%#D93400

Less saturated −25%#A35036

Channel breakdown

R190

G66

B27

Red190 (74.5%)

Green66 (25.9%)

Blue27 (10.6%)

Hue14.36°

Saturation (HSL)75.12%

Lightness42.55%

Dominant channelRed

Hex per channelR BE · G 42 · B 1B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Be421B (chemical formula)

Formula
3,804.9462 g/mol
422 atoms

Be421B has a molar mass of 3,804.9462 g/mol, made up of 422 atoms across 2 elements: 421 × Be, 1 × B.

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Molar mass

Molar mass3,804.9462 g/mol

Total atoms per molecule422

Distinct elements2

Mass of one molecule6.3182618 × 10^-21 g

Molecules per gram1.5827138 × 10^20

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

Be99.7%

B0.3%

Beryllium (Be × 421)3,794.1362 g/mol, 99.716%

Boron (B)10.81 g/mol, 0.284%

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Elements in this formula

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