Recognised as Colour

#FBB71F

#FBB71F
Orange
Light
Nearest: Orange

#FBB71F is a orange with RGB values 251, 183, 31 and HSL 41°, 96%, 55%. It is a light colour, so black text on it reaches 11.9:1 contrast (AAA for normal text). The nearest named colour is Orange.

Colour values

#FBB71F#FBB71F

HEX#FBB71F

RGBrgb(251, 183, 31)

RGB (0–1)0.9843, 0.7176, 0.1216

RGB percentages98.4%, 71.8%, 12.2%

HSLhsl(41.5, 96.5%, 55.3%)

HSV / HSBhsv(41.5, 87.6%, 98.4%)

CMYK0%, 27.1%, 87.6%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,496,415

CSS custom property--colour: #FBB71F;

Brightness & contrast

Relative luminance0.54475WCAG 2.x, 0 is black and 1 is white

Perceived brightness196.5 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 11.9:1

Contrast with white1.77:1WCAG normal text: Fail

Contrast with black11.9:1WCAG normal text: AAA

Greyscale equivalent#BABABA

Inverted#0448E0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#D2B900no red cones; affects about 1% of men; ΔE 19.5 from the original

Deuteranopia#E2CA29no green cones; the most common form, about 1% of men; ΔE 20.5 from the original

Tritanopia#FFA39Dno blue cones; rare, and affects men and women equally; ΔE 62.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.77:1WCAG large text: Fail

Contrast with black, large text11.9:1WCAG large text: AAA

Named colours

Orange · ΔE 11.6 Goldenrod · ΔE 12.2 Gold · ΔE 20 Dark goldenrod · ΔE 24.3 Dark orange · ΔE 25.4 Sandy brown · ΔE 32

Nearest named CSS colourOrange (#FFA500)ΔE 11.58, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1F63FB

Analogous#FB491F, #D1FB1F

Triadic#1FFBB7, #B71FFB

Split complementary#1FD1FB, #491FFB

Tetradic#1FFB49, #1F63FB, #FB1FD1

Tints, shades & saturation

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

Lighter +40%#FFF7E7

Lighter +30%#FEE7B5

Lighter +20%#FDD783

Lighter +10%#FCC751

Darker −10%#E39E04

Darker −20%#B17B03

Darker −30%#7F5802

Darker −40%#4D3501

More saturated +25%#FFB91B

Less saturated −25%#DEAC3C

Channel breakdown

R251

G183

B31

Red251 (98.4%)

Green183 (71.8%)

Blue31 (12.2%)

Hue41.45°

Saturation (HSL)96.49%

Lightness55.29%

Dominant channelRed

Hex per channelR FB · G B7 · B 1F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FBB71F (chemical formula)

Formula
816.316 g/mol
74 atoms

FBB71F has a molar mass of 816.316 g/mol, made up of 74 atoms across 2 elements: 2 × F, 72 × B.

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Molar mass

Molar mass816.316 g/mol

Total atoms per molecule74

Distinct elements2

Mass of one molecule1.3555246 × 10^-21 g

Molecules per gram7.3772176 × 10^20

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

F4.7%

B95.3%

Fluorine (F × 2)37.996 g/mol, 4.655%

Boron (B × 72)778.32 g/mol, 95.345%

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Elements in this formula

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