Recognised as Colour

#BF1117

#BF1117
Red
Dark
Nearest: Firebrick

#BF1117 is a red with RGB values 191, 17, 23 and HSL 358°, 84%, 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

#BF1117#BF1117

HEX#BF1117

RGBrgb(191, 17, 23)

RGB (0–1)0.749, 0.0667, 0.0902

RGB percentages74.9%, 6.7%, 9%

HSLhsl(357.9, 83.7%, 40.8%)

HSV / HSBhsv(357.9, 91.1%, 74.9%)

CMYK0%, 91.1%, 88%, 25.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,521,751

CSS custom property--colour: #BF1117;

Brightness & contrast

Relative luminance0.11539WCAG 2.x, 0 is black and 1 is white

Perceived brightness105.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.35:1

Contrast with white6.35:1WCAG normal text: AA

Contrast with black3.31:1WCAG normal text: Fail

Greyscale equivalent#363636

Inverted#40EEE8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#524813no red cones; affects about 1% of men; ΔE 67.6 from the original

Deuteranopia#7A6C08no green cones; the most common form, about 1% of men; ΔE 67.7 from the original

Tritanopia#D30018no blue cones; rare, and affects men and women equally; ΔE 8.8 from the original

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

Contrast with white, large text6.35:1WCAG large text: AAA

Contrast with black, large text3.31:1WCAG large text: AA

Named colours

Firebrick · ΔE 10.6 Crimson · ΔE 15.9 Dark red · ΔE 17.7 Brown · ΔE 20.2 Tomato · ΔE 22.3 Maroon · ΔE 22.3

Nearest named CSS colourFirebrick (#B22222)ΔE 10.62, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#11BFB9

Analogous#BF116E, #BF6211

Triadic#17BF11, #1117BF

Split complementary#11BF62, #116EBF

Tetradic#6EBF11, #11BFB9, #6211BF

Tints, shades & saturation

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

Lighter +40%#F7A5A8

Lighter +30%#F3767A

Lighter +20%#EF474D

Lighter +10%#EA1920

Darker −10%#900D11

Darker −20%#61090C

Darker −30%#330406

Darker −40%#040000

More saturated +25%#D00007

Less saturated −25%#A52B2F

Channel breakdown

R191

G17

B23

Red191 (74.9%)

Green17 (6.7%)

Blue23 (9%)

Hue357.93°

Saturation (HSL)83.65%

Lightness40.78%

Dominant channelRed

Hex per channelR BF · G 11 · B 17

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BF1117 (chemical formula)

Formula
21,231.576 g/mol
1118 atoms

BF1117 has a molar mass of 21,231.576 g/mol, made up of 1118 atoms across 2 elements: 1 × B, 1117 × F.

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Molar mass

Molar mass21,231.576 g/mol

Total atoms per molecule1118

Distinct elements2

Mass of one molecule3.5255861 × 10^-20 g

Molecules per gram2.8364078 × 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

B0.1%

F99.9%

Boron (B)10.81 g/mol, 0.051%

Fluorine (F × 1117)21,220.766 g/mol, 99.949%

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