Recognised as Colour

#F74B75

#F74B75
Red
Dark
Nearest: Crimson

#F74B75 is a red with RGB values 247, 75, 117 and HSL 345°, 91%, 63%. It is a dark colour, so black text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F74B75#F74B75

HEX#F74B75

RGBrgb(247, 75, 117)

RGB (0–1)0.9686, 0.2941, 0.4588

RGB percentages96.9%, 29.4%, 45.9%

HSLhsl(345.3, 91.5%, 63.1%)

HSV / HSBhsv(345.3, 69.6%, 96.9%)

CMYK0%, 69.6%, 52.6%, 3.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,206,709

CSS custom property--colour: #F74B75;

Brightness & contrast

Relative luminance0.26091WCAG 2.x, 0 is black and 1 is white

Perceived brightness152 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.22:1

Contrast with white3.38:1WCAG normal text: Fail

Contrast with black6.22:1WCAG normal text: AA

Greyscale equivalent#737373

Inverted#08B48A

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#757576no red cones; affects about 1% of men; ΔE 69.7 from the original

Deuteranopia#A29871no green cones; the most common form, about 1% of men; ΔE 70.6 from the original

Tritanopia#FF255Cno blue cones; rare, and affects men and women equally; ΔE 16 from the original

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

Contrast with white, large text3.38:1WCAG large text: AA

Contrast with black, large text6.22:1WCAG large text: AAA

Named colours

Crimson · ΔE 21.9 Indian red · ΔE 24.3 Light coral · ΔE 26.4 Pale violetred · ΔE 26.5 Deep pink · ΔE 26.9 Hot pink · ΔE 26.9

Nearest named CSS colourCrimson (#DC143C)ΔE 21.93, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4BF7CD

Analogous#F74BCB, #F7774B

Triadic#75F74B, #4B75F7

Split complementary#4BF777, #4BCBF7

Tetradic#CBF74B, #4BF7CD, #774BF7

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FEDDE5

Lighter +20%#FBADC0

Lighter +10%#F97C9A

Darker −10%#F51A50

Darker −20%#D3093B

Darker −30%#A2072D

Darker −40%#71051F

More saturated +25%#FF4371

Less saturated −25%#E06381

Channel breakdown

R247

G75

B117

Red247 (96.9%)

Green75 (29.4%)

Blue117 (45.9%)

Hue345.35°

Saturation (HSL)91.49%

Lightness63.14%

Dominant channelRed

Hex per channelR F7 · G 4B · B 75

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F74B75 (chemical formula)

Formula
2,216.602 g/mol
149 atoms

F74B75 has a molar mass of 2,216.602 g/mol, made up of 149 atoms across 2 elements: 74 × F, 75 × B.

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Molar mass

Molar mass2,216.602 g/mol

Total atoms per molecule149

Distinct elements2

Mass of one molecule3.6807542 × 10^-21 g

Molecules per gram2.7168345 × 10^20

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

F63.4%

B36.6%

Fluorine (F × 74)1,405.852 g/mol, 63.424%

Boron (B × 75)810.75 g/mol, 36.576%

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