Recognised as Colour
#FDB331
- #FDB331
- Orange
- Light
- Nearest: Orange
#FDB331 is a orange with RGB values 253, 179, 49 and HSL 38°, 98%, 59%. It is a light colour, so black text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Orange.
Colour values
#FDB331#FDB331
HEX#FDB331
RGBrgb(253, 179, 49)
RGB (0–1)0.9922, 0.702, 0.1922
RGB percentages99.2%, 70.2%, 19.2%
HSLhsl(38.2, 98.1%, 59.2%)
HSV / HSBhsv(38.2, 80.6%, 99.2%)
CMYK0%, 29.2%, 80.6%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,626,481
CSS custom property--colour: #FDB331;
Brightness & contrast
Relative luminance0.53345WCAG 2.x, 0 is black and 1 is white
Perceived brightness195.5 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.67:1
Contrast with white1.8:1WCAG normal text: Fail
Contrast with black11.67:1WCAG normal text: AAA
Greyscale equivalent#B9B9B9
Inverted#024CCE
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.8:1WCAG large text: Fail
Contrast with black, large text11.67:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#317BFD
Analogous#FD4D31, #E1FD31
Triadic#31FDB3, #B331FD
Split complementary#31E1FD, #4D31FD
Tetradic#31FD4D, #317BFD, #FD31E1
Tints, shades & saturation
Channel breakdown
R253
G179
B49
Red253 (99.2%)
Green179 (70.2%)
Blue49 (19.2%)
Hue38.24°
Saturation (HSL)98.08%
Lightness59.22%
Dominant channelRed
Hex per channelR FD · G B3 · B 31
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Harmonies
Similar named colours
Also reads as
FDb331 (chemical formula)
- Formula
- 88,726.998 g/mol
- 332 atoms
FDb331 has a molar mass of 88,726.998 g/mol, made up of 332 atoms across 2 elements: 1 × F, 331 × Db.
Molar mass
Molar mass88,726.998 g/mol
Total atoms per molecule332
Distinct elements2
Mass of one molecule1.4733465 × 10^-19 g
Molecules per gram6.7872698 × 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
F0%
Db100%
Fluorine (F)18.998 g/mol, 0.021%
Dubnium (Db × 331)88,708 g/mol, 99.979%
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