Recognised as Colour

#BF1B29

#BF1B29
Red
Dark
Nearest: Firebrick

#BF1B29 is a red with RGB values 191, 27, 41 and HSL 355°, 75%, 43%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#BF1B29#BF1B29

HEX#BF1B29

RGBrgb(191, 27, 41)

RGB (0–1)0.749, 0.1059, 0.1608

RGB percentages74.9%, 10.6%, 16.1%

HSLhsl(354.9, 75.2%, 42.7%)

HSV / HSBhsv(354.9, 85.9%, 74.9%)

CMYK0%, 85.9%, 78.5%, 25.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,524,329

CSS custom property--colour: #BF1B29;

Brightness & contrast

Relative luminance0.1202WCAG 2.x, 0 is black and 1 is white

Perceived brightness107.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.17:1

Contrast with white6.17:1WCAG normal text: AA

Contrast with black3.4:1WCAG normal text: Fail

Greyscale equivalent#3F3F3F

Inverted#40E4D6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#534B28no red cones; affects about 1% of men; ΔE 66.1 from the original

Deuteranopia#7A6D22no green cones; the most common form, about 1% of men; ΔE 66 from the original

Tritanopia#D30023no blue cones; rare, and affects men and women equally; ΔE 11.7 from the original

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

Contrast with white, large text6.17:1WCAG large text: AAA

Contrast with black, large text3.4:1WCAG large text: AA

Named colours

Firebrick · ΔE 6.1 Crimson · ΔE 11.5 Brown · ΔE 13.8 Dark red · ΔE 17.5 Maroon · ΔE 20.7 Tomato · ΔE 23.4

Nearest named CSS colourFirebrick (#B22222)ΔE 6.06, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1BBFB1

Analogous#BF1B7B, #BF5F1B

Triadic#29BF1B, #1B29BF

Split complementary#1BBF5F, #1B7BBF

Tetradic#7BBF1B, #1BBFB1, #5F1BBF

Tints, shades & saturation

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

Lighter +40%#F4B2B8

Lighter +30%#EE858E

Lighter +20%#E75965

Lighter +10%#E12C3B

Darker −10%#92151F

Darker −20%#660E16

Darker −30%#39080C

Darker −40%#0C0203

More saturated +25%#DA0013

Less saturated −25%#A43640

Channel breakdown

R191

G27

B41

Red191 (74.9%)

Green27 (10.6%)

Blue41 (16.1%)

Hue354.88°

Saturation (HSL)75.23%

Lightness42.75%

Dominant channelRed

Hex per channelR BF · G 1B · B 29

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

BF1B29 (chemical formula)

Formula
343.298 g/mol
31 atoms

BF1B29 has a molar mass of 343.298 g/mol, made up of 31 atoms across 2 elements: 30 × B, 1 × F.

Open this reading on its own page →

Molar mass

Molar mass343.298 g/mol

Total atoms per molecule31

Distinct elements2

Mass of one molecule5.7005974 × 10^-22 g

Molecules per gram1.7542021 × 10^21

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

B94.5%

F5.5%

Boron (B × 30)324.3 g/mol, 94.466%

Fluorine (F)18.998 g/mol, 5.534%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Nerdulate something else

Nothing in mind? Surprise me · today’s page