Recognised as Colour

#FE241F

#FE241F
Red
Dark
Nearest: Red

#FE241F is a red with RGB values 254, 36, 31 and HSL 1°, 99%, 56%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FE241F#FE241F

HEX#FE241F

RGBrgb(254, 36, 31)

RGB (0–1)0.9961, 0.1412, 0.1216

RGB percentages99.6%, 14.1%, 12.2%

HSLhsl(1.3, 99.1%, 55.9%)

HSV / HSBhsv(1.3, 87.8%, 99.6%)

CMYK0%, 85.8%, 87.8%, 0.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,655,391

CSS custom property--colour: #FE241F;

Brightness & contrast

Relative luminance0.22432WCAG 2.x, 0 is black and 1 is white

Perceived brightness142 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.49:1

Contrast with white3.83:1WCAG normal text: Fail

Contrast with black5.49:1WCAG normal text: AA

Greyscale equivalent#525252

Inverted#01DBE0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#716419no red cones; affects about 1% of men; ΔE 82.6 from the original

Deuteranopia#A59308no green cones; the most common form, about 1% of men; ΔE 82.6 from the original

Tritanopia#FF0028no blue cones; rare, and affects men and women equally; ΔE 6.6 from the original

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

Contrast with white, large text3.83:1WCAG large text: AA

Contrast with black, large text5.49:1WCAG large text: AAA

Named colours

Red · ΔE 9.7 Orange red · ΔE 13.9 Tomato · ΔE 23.3 Crimson · ΔE 26.4 Firebrick · ΔE 32.9 Coral · ΔE 35.2

Nearest named CSS colourRed (#FF0000)ΔE 9.7, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1FF9FE

Analogous#FE1F8A, #FE931F

Triadic#1FFE24, #241FFE

Split complementary#1FFE93, #1F8AFE

Tetradic#8AFE1F, #1FF9FE, #931FFE

Tints, shades & saturation

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

Lighter +40%#FFEBEA

Lighter +30%#FFB9B7

Lighter +20%#FE8785

Lighter +10%#FE5652

Darker −10%#E90601

Darker −20%#B60501

Darker −30%#830401

Darker −40%#510200

More saturated +25%#FF231E

Less saturated −25%#E23F3B

Channel breakdown

R254

G36

B31

Red254 (99.6%)

Green36 (14.1%)

Blue31 (12.2%)

Hue1.35°

Saturation (HSL)99.11%

Lightness55.88%

Dominant channelRed

Hex per channelR FE · G 24 · B 1F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Fe241F (chemical formula)

Formula
13,477.643 g/mol
242 atoms

Fe241F has a molar mass of 13,477.643 g/mol, made up of 242 atoms across 2 elements: 241 × Fe, 1 × F.

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Molar mass

Molar mass13,477.643 g/mol

Total atoms per molecule242

Distinct elements2

Mass of one molecule2.2380153 × 10^-20 g

Molecules per gram4.4682448 × 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

Fe99.9%

F0.1%

Iron (Fe × 241)13,458.645 g/mol, 99.859%

Fluorine (F)18.998 g/mol, 0.141%

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Elements in this formula

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