Recognised as Colour

#B28700

#B28700
Yellow
Dark
Nearest: Dark goldenrod

#B28700 is a yellow with RGB values 178, 135, 0 and HSL 46°, 100%, 35%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Dark goldenrod.

Colour values

#B28700#B28700

HEX#B28700

RGBrgb(178, 135, 0)

RGB (0–1)0.698, 0.5294, 0

RGB percentages69.8%, 52.9%, 0%

HSLhsl(45.5, 100%, 34.9%)

HSV / HSBhsv(45.5, 100%, 69.8%)

CMYK0%, 24.2%, 100%, 30.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,699,968

CSS custom property--colour: #B28700;

Brightness & contrast

Relative luminance0.26793WCAG 2.x, 0 is black and 1 is white

Perceived brightness142 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.36:1

Contrast with white3.3:1WCAG normal text: Fail

Contrast with black6.36:1WCAG normal text: AA

Greyscale equivalent#868686

Inverted#4D78FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#9A8700no red cones; affects about 1% of men; ΔE 11.7 from the original

Deuteranopia#A49210no green cones; the most common form, about 1% of men; ΔE 12.5 from the original

Tritanopia#C27972no blue cones; rare, and affects men and women equally; ΔE 52.5 from the original

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

Contrast with white, large text3.3:1WCAG large text: AA

Contrast with black, large text6.36:1WCAG large text: AAA

Named colours

Dark goldenrod · ΔE 3.6 Goldenrod · ΔE 13.2 Olive · ΔE 21.8 Peru · ΔE 22.1 Orange · ΔE 28.2 Sandy brown · ΔE 28.2

Nearest named CSS colourDark goldenrod (#B8860B)ΔE 3.63, a close match

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#002BB2

Analogous#B22E00, #84B200

Triadic#00B287, #8700B2

Split complementary#0084B2, #2E00B2

Tetradic#00B22E, #002BB2, #B20084

Tints, shades & saturation

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

Lighter +40%#FFE07F

Lighter +30%#FFD44C

Lighter +20%#FFC719

Lighter +10%#E5AE00

Darker −10%#7F6000

Darker −20%#4C3A00

Darker −30%#191300

Darker −40%#000000

More saturated +25%#B28700

Less saturated −25%#9C7C16

Channel breakdown

R178

G135

Red178 (69.8%)

Green135 (52.9%)

Blue0 (0%)

Hue45.51°

Saturation (HSL)100%

Lightness34.9%

Dominant channelRed

Hex per channelR B2 · G 87 · B 00

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B28700 (chemical formula)

Formula
310,247 g/mol
28700 atoms

B28700 has a molar mass of 310,247 g/mol, made up of 28700 atoms across 1 element: 28700 × B.

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Molar mass

Molar mass310,247 g/mol

Total atoms per molecule28700

Distinct elements1

Mass of one molecule5.1517726 × 10^-19 g

Molecules per gram1.9410794 × 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

B100%

Boron (B × 28700)310,247 g/mol, 100%

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Elements in this formula

Boron

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