Recognised as Colour

#FECB66

#FECB66
Orange
Light
Nearest: Goldenrod

#FECB66 is a orange with RGB values 254, 203, 102 and HSL 40°, 99%, 70%. It is a light colour, so black text on it reaches 13.9:1 contrast (AAA for normal text). The nearest named colour is Goldenrod.

Colour values

#FECB66#FECB66

HEX#FECB66

RGBrgb(254, 203, 102)

RGB (0–1)0.9961, 0.7961, 0.4

RGB percentages99.6%, 79.6%, 40%

HSLhsl(39.9, 98.7%, 69.8%)

HSV / HSBhsv(39.9, 59.8%, 99.6%)

CMYK0%, 20.1%, 59.8%, 0.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,698,214

CSS custom property--colour: #FECB66;

Brightness & contrast

Relative luminance0.64742WCAG 2.x, 0 is black and 1 is white

Perceived brightness211.3 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 13.95:1

Contrast with white1.51:1WCAG normal text: Fail

Contrast with black13.95:1WCAG normal text: AAA

Greyscale equivalent#CFCFCF

Inverted#013499

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#E1CB5Cno red cones; affects about 1% of men; ΔE 13 from the original

Deuteranopia#EDD869no green cones; the most common form, about 1% of men; ΔE 13.5 from the original

Tritanopia#FFBBB4no blue cones; rare, and affects men and women equally; ΔE 46.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.51:1WCAG large text: Fail

Contrast with black, large text13.95:1WCAG large text: AAA

Named colours

Goldenrod · ΔE 18.5 Khaki · ΔE 20.6 Sandy brown · ΔE 21.2 Dark khaki · ΔE 25.7 Dark goldenrod · ΔE 26.1 Burlywood · ΔE 27.3

Nearest named CSS colourGoldenrod (#DAA520)ΔE 18.47, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#6699FE

Analogous#FE7F66, #E5FE66

Triadic#66FECB, #CB66FE

Split complementary#66E5FE, #7F66FE

Tetradic#66FE7F, #6699FE, #FE66E5

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFE

Lighter +20%#FFEDCB

Lighter +10%#FEDC99

Darker −10%#FEBA33

Darker −20%#FCA802

Darker −30%#CA8601

Darker −40%#976501

More saturated +25%#FFCB65

Less saturated −25%#EBC579

Channel breakdown

R254

G203

B102

Red254 (99.6%)

Green203 (79.6%)

Blue102 (40%)

Hue39.87°

Saturation (HSL)98.7%

Lightness69.8%

Dominant channelRed

Hex per channelR FE · G CB · B 66

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FeCB66 (chemical formula)

Formula
781.316 g/mol
68 atoms

FeCB66 has a molar mass of 781.316 g/mol, made up of 68 atoms across 3 elements: 1 × Fe, 1 × C, 66 × B.

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Molar mass

Molar mass781.316 g/mol

Total atoms per molecule68

Distinct elements3

Mass of one molecule1.2974057 × 10^-21 g

Molecules per gram7.707689 × 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

Fe7.1%

C1.5%

B91.3%

Iron (Fe)55.845 g/mol, 7.148%

Carbon (C)12.011 g/mol, 1.537%

Boron (B × 66)713.46 g/mol, 91.315%

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Elements in this formula

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