Recognised as Colour

#F91234

#F91234
Red
Dark
Nearest: Crimson

#F91234 is a red with RGB values 249, 18, 52 and HSL 351°, 95%, 52%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F91234#F91234

HEX#F91234

RGBrgb(249, 18, 52)

RGB (0–1)0.9765, 0.0706, 0.2039

RGB percentages97.6%, 7.1%, 20.4%

HSLhsl(351.2, 95.1%, 52.4%)

HSV / HSBhsv(351.2, 92.8%, 97.6%)

CMYK0%, 92.8%, 79.1%, 2.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,323,124

CSS custom property--colour: #F91234;

Brightness & contrast

Relative luminance0.2082WCAG 2.x, 0 is black and 1 is white

Perceived brightness138 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.16:1

Contrast with white4.07:1WCAG normal text: Fail

Contrast with black5.16:1WCAG normal text: AA

Greyscale equivalent#464646

Inverted#06EDCB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6A6032no red cones; affects about 1% of men; ΔE 83.8 from the original

Deuteranopia#9F8E29no green cones; the most common form, about 1% of men; ΔE 83.6 from the original

Tritanopia#FF0026no blue cones; rare, and affects men and women equally; ΔE 8.7 from the original

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

Contrast with white, large text4.07:1WCAG large text: AA

Contrast with black, large text5.16:1WCAG large text: AAA

Named colours

Crimson · ΔE 15.5 Red · ΔE 21.2 Tomato · ΔE 22.3 Orange red · ΔE 25.5 Firebrick · ΔE 27.3 Brown · ΔE 35.8

Nearest named CSS colourCrimson (#DC143C)ΔE 15.51, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#12F9D7

Analogous#F912A8, #F96312

Triadic#34F912, #1234F9

Split complementary#12F963, #12A8F9

Tetradic#A8F912, #12F9D7, #6312F9

Tints, shades & saturation

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

Lighter +40%#FED9DE

Lighter +30%#FDA7B4

Lighter +20%#FC7589

Lighter +10%#FA445F

Darker −10%#D30524

Darker −20%#A1041B

Darker −30%#6F0313

Darker −40%#3D020A

More saturated +25%#FF0C30

Less saturated −25%#DB3049

Channel breakdown

R249

G18

B52

Red249 (97.6%)

Green18 (7.1%)

Blue52 (20.4%)

Hue351.17°

Saturation (HSL)95.06%

Lightness52.35%

Dominant channelRed

Hex per channelR F9 · G 12 · B 34

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F91234 (chemical formula)

Formula
1,733,263.532 g/mol
91234 atoms

F91234 has a molar mass of 1,733,263.532 g/mol, made up of 91234 atoms across 1 element: 91234 × F.

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Molar mass

Molar mass1,733,263.532 g/mol

Total atoms per molecule91234

Distinct elements1

Mass of one molecule2.8781518 × 10^-18 g

Molecules per gram3.4744519 × 10^17

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 × 91234)1,733,263.532 g/mol, 100%

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Elements in this formula

Fluorine

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