Recognised as Colour

#FC900B

#FC900B
Orange
Dark
Nearest: Dark orange

#FC900B is a orange with RGB values 252, 144, 11 and HSL 33°, 98%, 52%. It is a dark colour, so black text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Dark orange.

Colour values

#FC900B#FC900B

HEX#FC900B

RGBrgb(252, 144, 11)

RGB (0–1)0.9882, 0.5647, 0.0431

RGB percentages98.8%, 56.5%, 4.3%

HSLhsl(33.1, 97.6%, 51.6%)

HSV / HSBhsv(33.1, 95.6%, 98.8%)

CMYK0%, 42.9%, 95.6%, 1.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,551,947

CSS custom property--colour: #FC900B;

Brightness & contrast

Relative luminance0.40666WCAG 2.x, 0 is black and 1 is white

Perceived brightness176.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 9.13:1

Contrast with white2.3:1WCAG normal text: Fail

Contrast with black9.13:1WCAG normal text: AAA

Greyscale equivalent#9D9D9D

Inverted#036FF4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#B19C00no red cones; affects about 1% of men; ΔE 40 from the original

Deuteranopia#CBB50Cno green cones; the most common form, about 1% of men; ΔE 40.7 from the original

Tritanopia#FF777Bno blue cones; rare, and affects men and women equally; ΔE 54.4 from the original

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

Contrast with white, large text2.3:1WCAG large text: Fail

Contrast with black, large text9.13:1WCAG large text: AAA

Named colours

Dark orange · ΔE 3.5 Orange · ΔE 11.9 Chocolate · ΔE 22.6 Goldenrod · ΔE 25.7 Dark goldenrod · ΔE 28.5 Coral · ΔE 29.2

Nearest named CSS colourDark orange (#FF8C00)ΔE 3.47, a close match

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0B77FC

Analogous#FC170B, #F0FC0B

Triadic#0BFC90, #900BFC

Split complementary#0BEFFC, #180BFC

Tetradic#0BFC18, #0B77FC, #FC0BEF

Tints, shades & saturation

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

Lighter +40%#FEECD5

Lighter +30%#FED5A2

Lighter +20%#FDBE70

Lighter +10%#FDA73D

Darker −10%#D17503

Darker −20%#9F5902

Darker −30%#6D3D01

Darker −40%#3A2001

More saturated +25%#FF9008

Less saturated −25%#DD8D2A

Channel breakdown

R252

G144

B11

Red252 (98.8%)

Green144 (56.5%)

Blue11 (4.3%)

Hue33.11°

Saturation (HSL)97.57%

Lightness51.57%

Dominant channelRed

Hex per channelR FC · G 90 · B 0B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FC900B (chemical formula)

Formula
10,839.708 g/mol
902 atoms

FC900B has a molar mass of 10,839.708 g/mol, made up of 902 atoms across 3 elements: 1 × F, 900 × C, 1 × B.

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Molar mass

Molar mass10,839.708 g/mol

Total atoms per molecule902

Distinct elements3

Mass of one molecule1.7999759 × 10^-20 g

Molecules per gram5.5556301 × 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

F0.2%

C99.7%

B0.1%

Fluorine (F)18.998 g/mol, 0.175%

Carbon (C × 900)10,809.9 g/mol, 99.725%

Boron (B)10.81 g/mol, 0.1%

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