Recognised as Colour

#CF1300

#CF1300
Red
Dark
Nearest: Orange red

#CF1300 is a red with RGB values 207, 19, 0 and HSL 6°, 100%, 41%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#CF1300#CF1300

HEX#CF1300

RGBrgb(207, 19, 0)

RGB (0–1)0.8118, 0.0745, 0

RGB percentages81.2%, 7.5%, 0%

HSLhsl(5.5, 100%, 40.6%)

HSV / HSBhsv(5.5, 100%, 81.2%)

CMYK0%, 90.8%, 100%, 18.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,570,816

CSS custom property--colour: #CF1300;

Brightness & contrast

Relative luminance0.13731WCAG 2.x, 0 is black and 1 is white

Perceived brightness114.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.61:1

Contrast with white5.61:1WCAG normal text: AA

Contrast with black3.75:1WCAG normal text: Fail

Greyscale equivalent#3A3A3A

Inverted#30ECFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5A4E00no red cones; affects about 1% of men; ΔE 72.1 from the original

Deuteranopia#857500no green cones; the most common form, about 1% of men; ΔE 71.2 from the original

Tritanopia#E50015no blue cones; rare, and affects men and women equally; ΔE 8.9 from the original

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

Contrast with white, large text5.61:1WCAG large text: AAA

Contrast with black, large text3.75:1WCAG large text: AA

Named colours

Orange red · ΔE 17.8 Red · ΔE 19.1 Firebrick · ΔE 23.1 Tomato · ΔE 23.2 Crimson · ΔE 24.7 Dark red · ΔE 27.5

Nearest named CSS colourOrange red (#FF4500)ΔE 17.82, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00BCCF

Analogous#CF0054, #CF7B00

Triadic#00CF13, #1300CF

Split complementary#00CF7B, #0054CF

Tetradic#54CF00, #00BCCF, #7B00CF

Tints, shades & saturation

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

Lighter +40%#FFA59C

Lighter +30%#FF7769

Lighter +20%#FF4836

Lighter +10%#FF1A03

Darker −10%#9C0E00

Darker −20%#690A00

Darker −30%#360500

Darker −40%#030000

More saturated +25%#CF1300

Less saturated −25%#B5281A

Channel breakdown

R207

G19

Red207 (81.2%)

Green19 (7.5%)

Blue0 (0%)

Hue5.51°

Saturation (HSL)100%

Lightness40.59%

Dominant channelRed

Hex per channelR CF · G 13 · B 00

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Harmonies

Lighter and darker

Similar named colours

Also reads as

CF1300 (chemical formula)

Formula
24,709.411 g/mol
1301 atoms

CF1300 has a molar mass of 24,709.411 g/mol, made up of 1301 atoms across 2 elements: 1 × C, 1300 × F.

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Molar mass

Molar mass24,709.411 g/mol

Total atoms per molecule1301

Distinct elements2

Mass of one molecule4.1030942 × 10^-20 g

Molecules per gram2.4371851 × 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

C0%

F100%

Carbon (C)12.011 g/mol, 0.049%

Fluorine (F × 1300)24,697.4 g/mol, 99.951%

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Elements in this formula

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