Recognised as Colour

#FE3600

#FE3600
Red
Dark
Nearest: Orange red

#FE3600 is a red with RGB values 254, 54, 0 and HSL 13°, 100%, 50%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#FE3600#FE3600

HEX#FE3600

RGBrgb(254, 54, 0)

RGB (0–1)0.9961, 0.2118, 0

RGB percentages99.6%, 21.2%, 0%

HSLhsl(12.8, 100%, 49.8%)

HSV / HSBhsv(12.8, 100%, 99.6%)

CMYK0%, 78.7%, 100%, 0.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,659,968

CSS custom property--colour: #FE3600;

Brightness & contrast

Relative luminance0.23709WCAG 2.x, 0 is black and 1 is white

Perceived brightness144.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.74:1

Contrast with white3.66:1WCAG normal text: Fail

Contrast with black5.74:1WCAG normal text: AA

Greyscale equivalent#5D5D5D

Inverted#01C9FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#796900no red cones; affects about 1% of men; ΔE 78.1 from the original

Deuteranopia#A99500no green cones; the most common form, about 1% of men; ΔE 77.5 from the original

Tritanopia#FF0031no blue cones; rare, and affects men and women equally; ΔE 21.2 from the original

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

Contrast with white, large text3.66:1WCAG large text: AA

Contrast with black, large text5.74:1WCAG large text: AAA

Named colours

Orange red · ΔE 4.6 Red · ΔE 8.6 Tomato · ΔE 26.6 Coral · ΔE 35.5 Crimson · ΔE 35.6 Chocolate · ΔE 36.7

Nearest named CSS colourOrange red (#FF4500)ΔE 4.61, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00C8FE

Analogous#FE0049, #FEB500

Triadic#00FE36, #3600FE

Split complementary#00FEB5, #0049FE

Tetradic#49FE00, #00C8FE, #B500FE

Tints, shades & saturation

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

Lighter +40%#FFD6CB

Lighter +30%#FFAE98

Lighter +20%#FF8665

Lighter +10%#FF5E32

Darker −10%#CB2B00

Darker −20%#982000

Darker −30%#651500

Darker −40%#320B00

More saturated +25%#FE3600

Less saturated −25%#DE4820

Channel breakdown

R254

G54

Red254 (99.6%)

Green54 (21.2%)

Blue0 (0%)

Hue12.76°

Saturation (HSL)100%

Lightness49.8%

Dominant channelRed

Hex per channelR FE · G 36 · B 00

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Fe3600 (chemical formula)

Formula
201,042 g/mol
3600 atoms

Fe3600 has a molar mass of 201,042 g/mol, made up of 3600 atoms across 1 element: 3600 × Fe.

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Molar mass

Molar mass201,042 g/mol

Total atoms per molecule3600

Distinct elements1

Mass of one molecule3.338381 × 10^-19 g

Molecules per gram2.995464 × 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

Fe100%

Iron (Fe × 3600)201,042 g/mol, 100%

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Elements in this formula

Iron

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