Recognised as Colour

#BF2704

#BF2704
Red
Dark
Nearest: Firebrick

#BF2704 is a red with RGB values 191, 39, 4 and HSL 11°, 96%, 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

#BF2704#BF2704

HEX#BF2704

RGBrgb(191, 39, 4)

RGB (0–1)0.749, 0.1529, 0.0157

RGB percentages74.9%, 15.3%, 1.6%

HSLhsl(11.2, 95.9%, 38.2%)

HSV / HSBhsv(11.2, 97.9%, 74.9%)

CMYK0%, 79.6%, 97.9%, 25.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,527,364

CSS custom property--colour: #BF2704;

Brightness & contrast

Relative luminance0.12536WCAG 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#40D8FB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#594E00no red cones; affects about 1% of men; ΔE 63.2 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 15.4 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 16.4 Dark red · ΔE 19.9 Tomato · ΔE 21.4 Orange red · ΔE 24 Crimson · ΔE 24.5 Maroon · ΔE 24.7

Nearest named CSS colourFirebrick (#B22222)ΔE 16.38, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#049CBF

Analogous#BF043E, #BF8504

Triadic#04BF27, #2704BF

Split complementary#04BF85, #043EBF

Tetradic#3EBF04, #049CBF, #8504BF

Tints, shades & saturation

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

Lighter +40%#FDA692

Lighter +30%#FC7D60

Lighter +20%#FB552E

Lighter +10%#F13105

Darker −10%#8D1D03

Darker −20%#5B1302

Darker −30%#290801

Darker −40%#000000

More saturated +25%#C32400

Less saturated −25%#A7361C

Channel breakdown

R191

G39

Red191 (74.9%)

Green39 (15.3%)

Blue4 (1.6%)

Hue11.23°

Saturation (HSL)95.9%

Lightness38.24%

Dominant channelRed

Hex per channelR BF · G 27 · B 04

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BF2704 (chemical formula)

Formula
51,381.402 g/mol
2705 atoms

BF2704 has a molar mass of 51,381.402 g/mol, made up of 2705 atoms across 2 elements: 1 × B, 2704 × F.

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Molar mass

Molar mass51,381.402 g/mol

Total atoms per molecule2705

Distinct elements2

Mass of one molecule8.5320825 × 10^-20 g

Molecules per gram1.1720468 × 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 × 2704)51,370.592 g/mol, 99.979%

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