Recognised as Colour

#CFB40B

#CFB40B
Yellow
Dark
Nearest: Goldenrod

#CFB40B is a yellow with RGB values 207, 180, 11 and HSL 52°, 90%, 43%. It is a dark colour, so black text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Goldenrod.

Colour values

#CFB40B#CFB40B

HEX#CFB40B

RGBrgb(207, 180, 11)

RGB (0–1)0.8118, 0.7059, 0.0431

RGB percentages81.2%, 70.6%, 4.3%

HSLhsl(51.7, 89.9%, 42.7%)

HSV / HSBhsv(51.7, 94.7%, 81.2%)

CMYK0%, 13%, 94.7%, 18.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,612,043

CSS custom property--colour: #CFB40B;

Brightness & contrast

Relative luminance0.45932WCAG 2.x, 0 is black and 1 is white

Perceived brightness178.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 10.19:1

Contrast with white2.06:1WCAG normal text: Fail

Contrast with black10.19:1WCAG normal text: AAA

Greyscale equivalent#AEAEAE

Inverted#304BF4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#C8AF00no red cones; affects about 1% of men; ΔE 2.1 from the original

Deuteranopia#CFB821no green cones; the most common form, about 1% of men; ΔE 3.7 from the original

Tritanopia#E0A599no blue cones; rare, and affects men and women equally; ΔE 64.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text2.06:1WCAG large text: Fail

Contrast with black, large text10.19:1WCAG large text: AAA

Named colours

Goldenrod · ΔE 14.5 Gold · ΔE 18.7 Dark goldenrod · ΔE 23.4 Orange · ΔE 28.9 Olive · ΔE 29.1 Khaki · ΔE 34.1

Nearest named CSS colourGoldenrod (#DAA520)ΔE 14.51, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0B26CF

Analogous#CF520B, #88CF0B

Triadic#0BCFB4, #B40BCF

Split complementary#0B88CF, #520BCF

Tetradic#0BCF52, #0B26CF, #CF0B88

Tints, shades & saturation

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

Lighter +40%#FBF0AB

Lighter +30%#F8E77B

Lighter +20%#F5DE4B

Lighter +10%#F3D51A

Darker −10%#9F8A08

Darker −20%#6E6006

Darker −30%#3E3603

Darker −40%#0D0C01

More saturated +25%#DABC00

Less saturated −25%#B4A026

Channel breakdown

R207

G180

B11

Red207 (81.2%)

Green180 (70.6%)

Blue11 (4.3%)

Hue51.73°

Saturation (HSL)89.91%

Lightness42.75%

Dominant channelRed

Hex per channelR CF · G B4 · B 0B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

CFB40B (chemical formula)

Formula
474.219 g/mol
43 atoms

CFB40B has a molar mass of 474.219 g/mol, made up of 43 atoms across 3 elements: 1 × C, 1 × F, 41 × B.

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Molar mass

Molar mass474.219 g/mol

Total atoms per molecule43

Distinct elements3

Mass of one molecule7.8745918 × 10^-22 g

Molecules per gram1.2699071 × 10^21

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

C2.5%

F4%

B93.5%

Carbon (C)12.011 g/mol, 2.533%

Fluorine (F)18.998 g/mol, 4.006%

Boron (B × 41)443.21 g/mol, 93.461%

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Elements in this formula

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