Recognised as Colour

#BF2701

#BF2701
Red
Dark
Nearest: Firebrick

#BF2701 is a red with RGB values 191, 39, 1 and HSL 12°, 99%, 38%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#BF2701#BF2701

HEX#BF2701

RGBrgb(191, 39, 1)

RGB (0–1)0.749, 0.1529, 0.0039

RGB percentages74.9%, 15.3%, 0.4%

HSLhsl(12, 99%, 37.6%)

HSV / HSBhsv(12, 99.5%, 74.9%)

CMYK0%, 79.6%, 99.5%, 25.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,527,361

CSS custom property--colour: #BF2701;

Brightness & contrast

Relative luminance0.1253WCAG 2.x, 0 is black and 1 is white

Perceived brightness108.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.99:1

Contrast with white5.99:1WCAG normal text: AA

Contrast with black3.51:1WCAG normal text: Fail

Greyscale equivalent#454545

Inverted#40D8FE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#594E00no red cones; affects about 1% of men; ΔE 63.4 from the original

Deuteranopia#7E6F00no green cones; the most common form, about 1% of men; ΔE 62.5 from the original

Tritanopia#D30023no blue cones; rare, and affects men and women equally; ΔE 16 from the original

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

Contrast with white, large text5.99:1WCAG large text: AAA

Contrast with black, large text3.51:1WCAG large text: AA

Named colours

Firebrick · ΔE 17.3 Dark red · ΔE 20.5 Tomato · ΔE 21.8 Orange red · ΔE 23.4 Chocolate · ΔE 25.1 Crimson · ΔE 25.3

Nearest named CSS colourFirebrick (#B22222)ΔE 17.34, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0199BF

Analogous#BF013A, #BF8601

Triadic#01BF27, #2701BF

Split complementary#01BF86, #013ABF

Tetradic#3ABF01, #0199BF, #8601BF

Tints, shades & saturation

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

Lighter +40%#FEA48E

Lighter +30%#FE7C5B

Lighter +20%#FE5328

Lighter +10%#F23101

Darker −10%#8C1D01

Darker −20%#5A1200

Darker −30%#270800

Darker −40%#000000

More saturated +25%#C02600

Less saturated −25%#A73519

Channel breakdown

R191

G39

Red191 (74.9%)

Green39 (15.3%)

Blue1 (0.4%)

Hue12°

Saturation (HSL)98.96%

Lightness37.65%

Dominant channelRed

Hex per channelR BF · G 27 · B 01

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BF2701 (chemical formula)

Formula
51,324.408 g/mol
2702 atoms

BF2701 has a molar mass of 51,324.408 g/mol, made up of 2702 atoms across 2 elements: 1 × B, 2701 × F.

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Molar mass

Molar mass51,324.408 g/mol

Total atoms per molecule2702

Distinct elements2

Mass of one molecule8.5226185 × 10^-20 g

Molecules per gram1.1733483 × 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

B0%

F100%

Boron (B)10.81 g/mol, 0.021%

Fluorine (F × 2701)51,313.598 g/mol, 99.979%

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