Recognised as Colour

#FF360B

#FF360B
Red
Dark
Nearest: Orange red

#FF360B is a red with RGB values 255, 54, 11 and HSL 11°, 100%, 52%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#FF360B#FF360B

HEX#FF360B

RGBrgb(255, 54, 11)

RGB (0–1)1, 0.2118, 0.0431

RGB percentages100%, 21.2%, 4.3%

HSLhsl(10.6, 100%, 52.2%)

HSV / HSBhsv(10.6, 95.7%, 100%)

CMYK0%, 78.8%, 95.7%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,725,515

CSS custom property--colour: #FF360B;

Brightness & contrast

Relative luminance0.23922WCAG 2.x, 0 is black and 1 is white

Perceived brightness145.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.78:1

Contrast with white3.63:1WCAG normal text: Fail

Contrast with black5.78:1WCAG normal text: AA

Greyscale equivalent#5E5E5E

Inverted#00C9F4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#796A00no red cones; affects about 1% of men; ΔE 78.5 from the original

Deuteranopia#A99600no green cones; the most common form, about 1% of men; ΔE 78.4 from the original

Tritanopia#FF0031no blue cones; rare, and affects men and women equally; ΔE 19.2 from the original

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

Contrast with white, large text3.63:1WCAG large text: AA

Contrast with black, large text5.78:1WCAG large text: AAA

Named colours

Orange red · ΔE 5.7 Red · ΔE 8.4 Tomato · ΔE 25 Crimson · ΔE 33.6 Coral · ΔE 34.5 Chocolate · ΔE 36.4

Nearest named CSS colourOrange red (#FF4500)ΔE 5.67, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0BD4FF

Analogous#FF0B5A, #FFB00B

Triadic#0BFF36, #360BFF

Split complementary#0BFFB0, #0B5AFF

Tetradic#5AFF0B, #0BD4FF, #B00BFF

Tints, shades & saturation

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

Lighter +40%#FFDED7

Lighter +30%#FFB4A4

Lighter +20%#FF8A71

Lighter +10%#FF603E

Darker −10%#D72600

Darker −20%#A41D00

Darker −30%#711400

Darker −40%#3E0B00

More saturated +25%#FF360B

Less saturated −25%#E14A29

Channel breakdown

R255

G54

B11

Red255 (100%)

Green54 (21.2%)

Blue11 (4.3%)

Hue10.57°

Saturation (HSL)100%

Lightness52.16%

Dominant channelRed

Hex per channelR FF · G 36 · B 0B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF360B (chemical formula)

Formula
6,869.088 g/mol
362 atoms

FF360B has a molar mass of 6,869.088 g/mol, made up of 362 atoms across 2 elements: 361 × F, 1 × B.

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Molar mass

Molar mass6,869.088 g/mol

Total atoms per molecule362

Distinct elements2

Mass of one molecule1.1406389 × 10^-20 g

Molecules per gram8.7670165 × 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

F99.8%

B0.2%

Fluorine (F × 361)6,858.278 g/mol, 99.843%

Boron (B)10.81 g/mol, 0.157%

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Elements in this formula

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