Recognised as Colour

#F10030

#F10030
Red
Dark
Nearest: Crimson

#F10030 is a red with RGB values 241, 0, 48 and HSL 348°, 100%, 47%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F10030#F10030

HEX#F10030

RGBrgb(241, 0, 48)

RGB (0–1)0.9451, 0, 0.1882

RGB percentages94.5%, 0%, 18.8%

HSLhsl(348, 100%, 47.3%)

HSV / HSBhsv(348, 100%, 94.5%)

CMYK0%, 100%, 80.1%, 5.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,794,224

CSS custom property--colour: #F10030;

Brightness & contrast

Relative luminance0.18914WCAG 2.x, 0 is black and 1 is white

Perceived brightness132.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.78:1

Contrast with white4.39:1WCAG normal text: Fail

Contrast with black4.78:1WCAG normal text: AA

Greyscale equivalent#373737

Inverted#0EFFCF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#645B2Eno red cones; affects about 1% of men; ΔE 83.5 from the original

Deuteranopia#998825no green cones; the most common form, about 1% of men; ΔE 82.6 from the original

Tritanopia#FF001Eno blue cones; rare, and affects men and women equally; ΔE 13.1 from the original

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

Contrast with white, large text4.39:1WCAG large text: AA

Contrast with black, large text4.78:1WCAG large text: AAA

Named colours

Crimson · ΔE 14.1 Red · ΔE 21.9 Tomato · ΔE 22.8 Firebrick · ΔE 25.6 Orange red · ΔE 26.2 Brown · ΔE 34.2

Nearest named CSS colourCrimson (#DC143C)ΔE 14.12, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00F1C1

Analogous#F100A8, #F14800

Triadic#30F100, #0030F1

Split complementary#00F148, #00A8F1

Tetradic#A9F100, #00F1C1, #4900F1

Tints, shades & saturation

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

Lighter +40%#FFBECB

Lighter +30%#FF8BA2

Lighter +20%#FF5879

Lighter +10%#FF2550

Darker −10%#BE0026

Darker −20%#8B001C

Darker −30%#580012

Darker −40%#250007

More saturated +25%#F10030

Less saturated −25%#D31E42

Channel breakdown

R241

B48

Red241 (94.5%)

Green0 (0%)

Blue48 (18.8%)

Hue348.05°

Saturation (HSL)100%

Lightness47.25%

Dominant channelRed

Hex per channelR F1 · G 00 · B 30

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F10030 (chemical formula)

Formula
190,549.94 g/mol
10030 atoms

F10030 has a molar mass of 190,549.94 g/mol, made up of 10030 atoms across 1 element: 10030 × F.

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Molar mass

Molar mass190,549.94 g/mol

Total atoms per molecule10030

Distinct elements1

Mass of one molecule3.1641562 × 10^-19 g

Molecules per gram3.1604002 × 10^18

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 × 10030)190,549.94 g/mol, 100%

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Elements in this formula

Fluorine

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