Recognised as Colour
#FBF506
- #FBF506
- Yellow
- Light
- Nearest: Yellow
#FBF506 is a yellow with RGB values 251, 245, 6 and HSL 59°, 97%, 50%. It is a light colour, so black text on it reaches 18.2:1 contrast (AAA for normal text). The nearest named colour is Yellow.
Colour values
#FBF506#FBF506
HEX#FBF506
RGBrgb(251, 245, 6)
RGB (0–1)0.9843, 0.9608, 0.0235
RGB percentages98.4%, 96.1%, 2.4%
HSLhsl(58.5, 96.8%, 50.4%)
HSV / HSBhsv(58.5, 97.6%, 98.4%)
CMYK0%, 2.4%, 97.6%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,512,262
CSS custom property--colour: #FBF506;
Brightness & contrast
Relative luminance0.85827WCAG 2.x, 0 is black and 1 is white
Perceived brightness232.5 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 18.17:1
Contrast with white1.16:1WCAG normal text: Fail
Contrast with black18.17:1WCAG normal text: AAA
Greyscale equivalent#E5E5E5
Inverted#040AF9
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.16:1WCAG large text: Fail
Contrast with black, large text18.17:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#060CFB
Analogous#FB7A06, #87FB06
Triadic#06FBF5, #F506FB
Split complementary#0687FB, #7A06FB
Tetradic#06FB7A, #060CFB, #FB0687
Tints, shades & saturation
Channel breakdown
R251
G245
B6
Red251 (98.4%)
Green245 (96.1%)
Blue6 (2.4%)
Hue58.53°
Saturation (HSL)96.84%
Lightness50.39%
Dominant channelRed
Hex per channelR FB · G F5 · B 06
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Harmonies
Similar named colours
Also reads as
FBF506 (chemical formula)
- Formula
- 9,642.796 g/mol
- 508 atoms
FBF506 has a molar mass of 9,642.796 g/mol, made up of 508 atoms across 2 elements: 507 × F, 1 × B.
Molar mass
Molar mass9,642.796 g/mol
Total atoms per molecule508
Distinct elements2
Mass of one molecule1.6012239 × 10^-20 g
Molecules per gram6.2452226 × 10^19
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
F99.9%
B0.1%
Fluorine (F × 507)9,631.986 g/mol, 99.888%
Boron (B)10.81 g/mol, 0.112%
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