Recognised as Colour

#FF9251

#FF9251
Orange
Dark
Nearest: Coral

#FF9251 is a orange with RGB values 255, 146, 81 and HSL 22°, 100%, 66%. It is a dark colour, so black text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Coral.

Colour values

#FF9251#FF9251

HEX#FF9251

RGBrgb(255, 146, 81)

RGB (0–1)1, 0.5725, 0.3176

RGB percentages100%, 57.3%, 31.8%

HSLhsl(22.4, 100%, 65.9%)

HSV / HSBhsv(22.4, 68.2%, 100%)

CMYK0%, 42.7%, 68.2%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,749,137

CSS custom property--colour: #FF9251;

Brightness & contrast

Relative luminance0.42412WCAG 2.x, 0 is black and 1 is white

Perceived brightness180.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 9.48:1

Contrast with white2.21:1WCAG normal text: Fail

Contrast with black9.48:1WCAG normal text: AAA

Greyscale equivalent#A4A4A4

Inverted#006DAE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#B19F4Ano red cones; affects about 1% of men; ΔE 40.8 from the original

Deuteranopia#CBB850no green cones; the most common form, about 1% of men; ΔE 41.9 from the original

Tritanopia#FF7C83no blue cones; rare, and affects men and women equally; ΔE 34.7 from the original

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

Contrast with white, large text2.21:1WCAG large text: Fail

Contrast with black, large text9.48:1WCAG large text: AAA

Named colours

Coral · ΔE 10.9 Sandy brown · ΔE 13.9 Chocolate · ΔE 16.1 Peru · ΔE 17.6 Light salmon · ΔE 17.7 Dark orange · ΔE 24.2

Nearest named CSS colourCoral (#FF7F50)ΔE 10.93, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#51BEFF

Analogous#FF5167, #FFE951

Triadic#51FF92, #9251FF

Split complementary#51FFE9, #5167FF

Tetradic#67FF51, #51BEFF, #E951FF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFF2EA

Lighter +20%#FFD2B7

Lighter +10%#FFB284

Darker −10%#FF721E

Darker −20%#EA5700

Darker −30%#B74400

Darker −40%#843100

More saturated +25%#FF9251

Less saturated −25%#E99767

Channel breakdown

R255

G146

B81

Red255 (100%)

Green146 (57.3%)

Blue81 (31.8%)

Hue22.41°

Saturation (HSL)100%

Lightness65.88%

Dominant channelRed

Hex per channelR FF · G 92 · B 51

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF9251 (chemical formula)

Formula
175,769.496 g/mol
9252 atoms

FF9251 has a molar mass of 175,769.496 g/mol, made up of 9252 atoms across 1 element: 9252 × F.

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Molar mass

Molar mass175,769.496 g/mol

Total atoms per molecule9252

Distinct elements1

Mass of one molecule2.9187211 × 10^-19 g

Molecules per gram3.4261581 × 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 × 9252)175,769.496 g/mol, 100%

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Elements in this formula

Fluorine

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