Recognised as Colour

#FBC121

#FBC121
Orange
Light
Nearest: Goldenrod

#FBC121 is a orange with RGB values 251, 193, 33 and HSL 44°, 96%, 56%. It is a light colour, so black text on it reaches 12.8:1 contrast (AAA for normal text). The nearest named colour is Goldenrod.

Colour values

#FBC121#FBC121

HEX#FBC121

RGBrgb(251, 193, 33)

RGB (0–1)0.9843, 0.7569, 0.1294

RGB percentages98.4%, 75.7%, 12.9%

HSLhsl(44, 96.5%, 55.7%)

HSV / HSBhsv(44, 86.9%, 98.4%)

CMYK0%, 23.1%, 86.9%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,498,977

CSS custom property--colour: #FBC121;

Brightness & contrast

Relative luminance0.58759WCAG 2.x, 0 is black and 1 is white

Perceived brightness202.1 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 12.75:1

Contrast with white1.65:1WCAG normal text: Fail

Contrast with black12.75:1WCAG normal text: AAA

Greyscale equivalent#C2C2C2

Inverted#043EDE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#DBC100no red cones; affects about 1% of men; ΔE 14.6 from the original

Deuteranopia#E8D02Dno green cones; the most common form, about 1% of men; ΔE 15.8 from the original

Tritanopia#FFAEA5no blue cones; rare, and affects men and women equally; ΔE 65 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.65:1WCAG large text: Fail

Contrast with black, large text12.75:1WCAG large text: AAA

Named colours

Goldenrod · ΔE 14.1 Gold · ΔE 14.5 Orange · ΔE 17.1 Dark goldenrod · ΔE 27 Dark orange · ΔE 31.2 Sandy brown · ΔE 35.6

Nearest named CSS colourGoldenrod (#DAA520)ΔE 14.08, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#215BFB

Analogous#FB5421, #C8FB21

Triadic#21FBC1, #C121FB

Split complementary#21C8FB, #5421FB

Tetradic#21FB54, #215BFB, #FB21C8

Tints, shades & saturation

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

Lighter +40%#FFF9E9

Lighter +30%#FEEBB7

Lighter +20%#FDDD85

Lighter +10%#FCCF53

Darker −10%#E5A904

Darker −20%#B38403

Darker −30%#815F02

Darker −40%#4F3A01

More saturated +25%#FFC31D

Less saturated −25%#DFB43D

Channel breakdown

R251

G193

B33

Red251 (98.4%)

Green193 (75.7%)

Blue33 (12.9%)

Hue44.04°

Saturation (HSL)96.46%

Lightness55.69%

Dominant channelRed

Hex per channelR FB · G C1 · B 21

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

FBC121 (chemical formula)

Formula
1,483.139 g/mol
123 atoms

FBC121 has a molar mass of 1,483.139 g/mol, made up of 123 atoms across 3 elements: 1 × F, 1 × B, 121 × C.

Open this reading on its own page →

Molar mass

Molar mass1,483.139 g/mol

Total atoms per molecule123

Distinct elements3

Mass of one molecule2.4628103 × 10^-21 g

Molecules per gram4.0604021 × 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

F1.3%

B0.7%

C98%

Fluorine (F)18.998 g/mol, 1.281%

Boron (B)10.81 g/mol, 0.729%

Carbon (C × 121)1,453.331 g/mol, 97.99%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Nerdulate something else

Nothing in mind? Surprise me · today’s page