Recognised as Colour

#FF292B

#FF292B
Red
Dark
Nearest: Red

#FF292B is a red with RGB values 255, 41, 43 and HSL 359°, 100%, 58%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FF292B#FF292B

HEX#FF292B

RGBrgb(255, 41, 43)

RGB (0–1)1, 0.1608, 0.1686

RGB percentages100%, 16.1%, 16.9%

HSLhsl(359.4, 100%, 58%)

HSV / HSBhsv(359.4, 83.9%, 100%)

CMYK0%, 83.9%, 83.1%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,722,219

CSS custom property--colour: #FF292B;

Brightness & contrast

Relative luminance0.2302WCAG 2.x, 0 is black and 1 is white

Perceived brightness143.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.6:1

Contrast with white3.75:1WCAG normal text: Fail

Contrast with black5.6:1WCAG normal text: AA

Greyscale equivalent#575757

Inverted#00D6D4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#736727no red cones; affects about 1% of men; ΔE 82 from the original

Deuteranopia#A6941Dno green cones; the most common form, about 1% of men; ΔE 81.8 from the original

Tritanopia#FF002Eno blue cones; rare, and affects men and women equally; ΔE 6 from the original

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

Contrast with white, large text3.75:1WCAG large text: AA

Contrast with black, large text5.6:1WCAG large text: AAA

Named colours

Red · ΔE 14.5 Orange red · ΔE 17.6 Tomato · ΔE 20.6 Crimson · ΔE 22 Firebrick · ΔE 30 Coral · ΔE 33.3

Nearest named CSS colourRed (#FF0000)ΔE 14.51, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#29FFFD

Analogous#FF2996, #FF9229

Triadic#2BFF29, #292BFF

Split complementary#29FF92, #2996FF

Tetradic#96FF29, #29FFFD, #9229FF

Tints, shades & saturation

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

Lighter +40%#FFF5F5

Lighter +30%#FFC2C3

Lighter +20%#FF8F90

Lighter +10%#FF5C5E

Darker −10%#F50002

Darker −20%#C20002

Darker −30%#8F0001

Darker −40%#5C0001

More saturated +25%#FF292B

Less saturated −25%#E44445

Channel breakdown

R255

G41

B43

Red255 (100%)

Green41 (16.1%)

Blue43 (16.9%)

Hue359.44°

Saturation (HSL)100%

Lightness58.04%

Dominant channelRed

Hex per channelR FF · G 29 · B 2B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF292B (chemical formula)

Formula
5,577.224 g/mol
294 atoms

FF292B has a molar mass of 5,577.224 g/mol, made up of 294 atoms across 2 elements: 293 × F, 1 × B.

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Molar mass

Molar mass5,577.224 g/mol

Total atoms per molecule294

Distinct elements2

Mass of one molecule9.2611983 × 10^-21 g

Molecules per gram1.0797739 × 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

F99.8%

B0.2%

Fluorine (F × 293)5,566.414 g/mol, 99.806%

Boron (B)10.81 g/mol, 0.194%

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