Recognised as Colour

#FF1929

#FF1929
Red
Dark
Nearest: Red

#FF1929 is a red with RGB values 255, 25, 41 and HSL 356°, 100%, 55%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FF1929#FF1929

HEX#FF1929

RGBrgb(255, 25, 41)

RGB (0–1)1, 0.098, 0.1608

RGB percentages100%, 9.8%, 16.1%

HSLhsl(355.8, 100%, 54.9%)

HSV / HSBhsv(355.8, 90.2%, 100%)

CMYK0%, 90.2%, 83.9%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,718,121

CSS custom property--colour: #FF1929;

Brightness & contrast

Relative luminance0.22115WCAG 2.x, 0 is black and 1 is white

Perceived brightness141.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.42:1

Contrast with white3.87:1WCAG normal text: Fail

Contrast with black5.42:1WCAG normal text: AA

Greyscale equivalent#4B4B4B

Inverted#00E6D6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6F6326no red cones; affects about 1% of men; ΔE 84.6 from the original

Deuteranopia#A4921Ano green cones; the most common form, about 1% of men; ΔE 84.3 from the original

Tritanopia#FF0025no blue cones; rare, and affects men and women equally; ΔE 2.6 from the original

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

Contrast with white, large text3.87:1WCAG large text: AA

Contrast with black, large text5.42:1WCAG large text: AAA

Named colours

Red · ΔE 13.7 Orange red · ΔE 19 Crimson · ΔE 22.5 Tomato · ΔE 23.2 Firebrick · ΔE 31.4 Coral · ΔE 36.1

Nearest named CSS colourRed (#FF0000)ΔE 13.72, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#19FFEF

Analogous#FF199C, #FF7C19

Triadic#29FF19, #1929FF

Split complementary#19FF7C, #199CFF

Tetradic#9CFF19, #19FFEF, #7C19FF

Tints, shades & saturation

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

Lighter +40%#FFE5E7

Lighter +30%#FFB2B7

Lighter +20%#FF7F88

Lighter +10%#FF4C58

Darker −10%#E50010

Darker −20%#B2000C

Darker −30%#7F0009

Darker −40%#4C0005

More saturated +25%#FF1929

Less saturated −25%#E23642

Channel breakdown

R255

G25

B41

Red255 (100%)

Green25 (9.8%)

Blue41 (16.1%)

Hue355.83°

Saturation (HSL)100%

Lightness54.9%

Dominant channelRed

Hex per channelR FF · G 19 · B 29

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF1929 (chemical formula)

Formula
36,666.14 g/mol
1930 atoms

FF1929 has a molar mass of 36,666.14 g/mol, made up of 1930 atoms across 1 element: 1930 × F.

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Molar mass

Molar mass36,666.14 g/mol

Total atoms per molecule1930

Distinct elements1

Mass of one molecule6.0885558 × 10^-20 g

Molecules per gram1.6424256 × 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 × 1930)36,666.14 g/mol, 100%

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Elements in this formula

Fluorine

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