Recognised as Colour

#FF1734

#FF1734
Red
Dark
Nearest: Crimson

#FF1734 is a red with RGB values 255, 23, 52 and HSL 353°, 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 Crimson.

Colour values

#FF1734#FF1734

HEX#FF1734

RGBrgb(255, 23, 52)

RGB (0–1)1, 0.0902, 0.2039

RGB percentages100%, 9%, 20.4%

HSLhsl(352.5, 100%, 54.5%)

HSV / HSBhsv(352.5, 91%, 100%)

CMYK0%, 91%, 79.6%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,717,620

CSS custom property--colour: #FF1734;

Brightness & contrast

Relative luminance0.22121WCAG 2.x, 0 is black and 1 is white

Perceived brightness141.6 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#4A4A4A

Inverted#00E8CB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6D6332no red cones; affects about 1% of men; ΔE 85.2 from the original

Deuteranopia#A39229no green cones; the most common form, about 1% of men; ΔE 84.8 from the original

Tritanopia#FF0028no blue cones; rare, and affects men and women equally; ΔE 5.8 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

Crimson · ΔE 17.9 Red · ΔE 19.3 Tomato · ΔE 22.6 Orange red · ΔE 24 Firebrick · ΔE 29.4 Coral · ΔE 36.1

Nearest named CSS colourCrimson (#DC143C)ΔE 17.91, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#17FFE2

Analogous#FF17A8, #FF6E17

Triadic#34FF17, #1734FF

Split complementary#17FF6E, #17A8FF

Tetradic#A8FF17, #17FFE2, #6E17FF

Tints, shades & saturation

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

Lighter +40%#FFE3E6

Lighter +30%#FFB0BA

Lighter +20%#FF7D8D

Lighter +10%#FF4A61

Darker −10%#E3001C

Darker −20%#B00016

Darker −30%#7D0010

Darker −40%#4A0009

More saturated +25%#FF1734

Less saturated −25%#E2344A

Channel breakdown

R255

G23

B52

Red255 (100%)

Green23 (9%)

Blue52 (20.4%)

Hue352.5°

Saturation (HSL)100%

Lightness54.51%

Dominant channelRed

Hex per channelR FF · G 17 · B 34

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF1734 (chemical formula)

Formula
32,961.53 g/mol
1735 atoms

FF1734 has a molar mass of 32,961.53 g/mol, made up of 1735 atoms across 1 element: 1735 × F.

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Molar mass

Molar mass32,961.53 g/mol

Total atoms per molecule1735

Distinct elements1

Mass of one molecule5.4733908 × 10^-20 g

Molecules per gram1.827021 × 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 × 1735)32,961.53 g/mol, 100%

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Elements in this formula

Fluorine

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