Recognised as Colour

#FF6748

#FF6748
Red
Dark
Nearest: Tomato

#FF6748 is a red with RGB values 255, 103, 72 and HSL 10°, 100%, 64%. It is a dark colour, so black text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Tomato.

Colour values

#FF6748#FF6748

HEX#FF6748

RGBrgb(255, 103, 72)

RGB (0–1)1, 0.4039, 0.2824

RGB percentages100%, 40.4%, 28.2%

HSLhsl(10.2, 100%, 64.1%)

HSV / HSBhsv(10.2, 71.8%, 100%)

CMYK0%, 59.6%, 71.8%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,738,120

CSS custom property--colour: #FF6748;

Brightness & contrast

Relative luminance0.31428WCAG 2.x, 0 is black and 1 is white

Perceived brightness162.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.29:1

Contrast with white2.88:1WCAG normal text: Fail

Contrast with black7.29:1WCAG normal text: AAA

Greyscale equivalent#858585

Inverted#0098B7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#918344no red cones; affects about 1% of men; ΔE 61.1 from the original

Deuteranopia#B6A543no green cones; the most common form, about 1% of men; ΔE 62.2 from the original

Tritanopia#FF4460no blue cones; rare, and affects men and women equally; ΔE 24.3 from the original

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

Contrast with white, large text2.88:1WCAG large text: Fail

Contrast with black, large text7.29:1WCAG large text: AAA

Named colours

Tomato · ΔE 1.8 Coral · ΔE 11.7 Salmon · ΔE 21.1 Chocolate · ΔE 22.7 Crimson · ΔE 25.3 Firebrick · ΔE 25.4

Nearest named CSS colourTomato (#FF6347)ΔE 1.83, below the just-noticeable difference

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#48E0FF

Analogous#FF4884, #FFC248

Triadic#48FF67, #6748FF

Split complementary#48FFC3, #4884FF

Tetradic#84FF48, #48E0FF, #C348FF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFE6E1

Lighter +20%#FFBCAE

Lighter +10%#FF917B

Darker −10%#FF3D15

Darker −20%#E12600

Darker −30%#AE1D00

Darker −40%#7B1500

More saturated +25%#FF6748

Less saturated −25%#E8765F

Channel breakdown

R255

G103

B72

Red255 (100%)

Green103 (40.4%)

Blue72 (28.2%)

Hue10.16°

Saturation (HSL)100%

Lightness64.12%

Dominant channelRed

Hex per channelR FF · G 67 · B 48

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF6748 (chemical formula)

Formula
128,217.502 g/mol
6749 atoms

FF6748 has a molar mass of 128,217.502 g/mol, made up of 6749 atoms across 1 element: 6749 × F.

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Molar mass

Molar mass128,217.502 g/mol

Total atoms per molecule6749

Distinct elements1

Mass of one molecule2.1291017 × 10^-19 g

Molecules per gram4.6968165 × 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 × 6749)128,217.502 g/mol, 100%

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Elements in this formula

Fluorine

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