Recognised as Colour

#FF2956

#FF2956
Red
Dark
Nearest: Crimson

#FF2956 is a red with RGB values 255, 41, 86 and HSL 347°, 100%, 58%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF2956#FF2956

HEX#FF2956

RGBrgb(255, 41, 86)

RGB (0–1)1, 0.1608, 0.3373

RGB percentages100%, 16.1%, 33.7%

HSLhsl(347.4, 100%, 58%)

HSV / HSBhsv(347.4, 83.9%, 100%)

CMYK0%, 83.9%, 66.3%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,722,262

CSS custom property--colour: #FF2956;

Brightness & contrast

Relative luminance0.23518WCAG 2.x, 0 is black and 1 is white

Perceived brightness145.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.7:1

Contrast with white3.68:1WCAG normal text: Fail

Contrast with black5.7:1WCAG normal text: AA

Greyscale equivalent#5A5A5A

Inverted#00D6A9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6E6956no red cones; affects about 1% of men; ΔE 81.8 from the original

Deuteranopia#A39550no green cones; the most common form, about 1% of men; ΔE 82.2 from the original

Tritanopia#FF003Eno blue cones; rare, and affects men and women equally; ΔE 12.4 from the original

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

Contrast with white, large text3.68:1WCAG large text: AA

Contrast with black, large text5.7:1WCAG large text: AAA

Named colours

Crimson · ΔE 11.2 Tomato · ΔE 26.2 Firebrick · ΔE 28 Brown · ΔE 33 Indian red · ΔE 33.5 Salmon · ΔE 34.1

Nearest named CSS colourCrimson (#DC143C)ΔE 11.21, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#29FFD2

Analogous#FF29C1, #FF6729

Triadic#56FF29, #2956FF

Split complementary#29FF67, #29C1FF

Tetradic#C1FF29, #29FFD2, #6729FF

Tints, shades & saturation

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

Lighter +40%#FFF5F7

Lighter +30%#FFC2CF

Lighter +20%#FF8FA7

Lighter +10%#FF5C7E

Darker −10%#F50034

Darker −20%#C20029

Darker −30%#8F001E

Darker −40%#5C0013

More saturated +25%#FF2956

Less saturated −25%#E44465

Channel breakdown

R255

G41

B86

Red255 (100%)

Green41 (16.1%)

Blue86 (33.7%)

Hue347.38°

Saturation (HSL)100%

Lightness58.04%

Dominant channelRed

Hex per channelR FF · G 29 · B 56

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF2956 (chemical formula)

Formula
56,177.086 g/mol
2957 atoms

FF2956 has a molar mass of 56,177.086 g/mol, made up of 2957 atoms across 1 element: 2957 × F.

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Molar mass

Molar mass56,177.086 g/mol

Total atoms per molecule2957

Distinct elements1

Mass of one molecule9.3284246 × 10^-20 g

Molecules per gram1.0719924 × 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

F100%

Fluorine (F × 2957)56,177.086 g/mol, 100%

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Elements in this formula

Fluorine

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