Recognised as Colour

#FE3629

#FE3629
Red
Dark
Nearest: Red

#FE3629 is a red with RGB values 254, 54, 41 and HSL 4°, 99%, 58%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FE3629#FE3629

HEX#FE3629

RGBrgb(254, 54, 41)

RGB (0–1)0.9961, 0.2118, 0.1608

RGB percentages99.6%, 21.2%, 16.1%

HSLhsl(3.7, 99.1%, 57.8%)

HSV / HSBhsv(3.7, 83.9%, 99.6%)

CMYK0%, 78.7%, 83.9%, 0.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,660,009

CSS custom property--colour: #FE3629;

Brightness & contrast

Relative luminance0.23869WCAG 2.x, 0 is black and 1 is white

Perceived brightness145.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.77:1

Contrast with white3.64:1WCAG normal text: Fail

Contrast with black5.77:1WCAG normal text: AA

Greyscale equivalent#606060

Inverted#01C9D6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#776A24no red cones; affects about 1% of men; ΔE 78.5 from the original

Deuteranopia#A8961Cno green cones; the most common form, about 1% of men; ΔE 78.6 from the original

Tritanopia#FF0036no blue cones; rare, and affects men and women equally; ΔE 12.5 from the original

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

Contrast with white, large text3.64:1WCAG large text: AA

Contrast with black, large text5.77:1WCAG large text: AAA

Named colours

Red · ΔE 14.6 Orange red · ΔE 14.7 Tomato · ΔE 18.1 Crimson · ΔE 23.3 Firebrick · ΔE 29.4 Coral · ΔE 30.3

Nearest named CSS colourRed (#FF0000)ΔE 14.56, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#29F1FE

Analogous#FE2987, #FEA129

Triadic#29FE36, #3629FE

Split complementary#29FEA1, #2986FE

Tetradic#87FE29, #29F1FE, #A129FE

Tints, shades & saturation

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

Lighter +40%#FFF5F4

Lighter +30%#FFC5C1

Lighter +20%#FE958F

Lighter +10%#FE665C

Darker −10%#F31001

Darker −20%#C00D01

Darker −30%#8D0901

Darker −40%#5B0600

More saturated +25%#FF3528

Less saturated −25%#E34E44

Channel breakdown

R254

G54

B41

Red254 (99.6%)

Green54 (21.2%)

Blue41 (16.1%)

Hue3.66°

Saturation (HSL)99.07%

Lightness57.84%

Dominant channelRed

Hex per channelR FE · G 36 · B 29

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Fe3629 (chemical formula)

Formula
202,661.505 g/mol
3629 atoms

Fe3629 has a molar mass of 202,661.505 g/mol, made up of 3629 atoms across 1 element: 3629 × Fe.

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Molar mass

Molar mass202,661.505 g/mol

Total atoms per molecule3629

Distinct elements1

Mass of one molecule3.3652735 × 10^-19 g

Molecules per gram2.9715267 × 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 × 3629)202,661.505 g/mol, 100%

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Elements in this formula

Iron

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