Recognised as Colour
#FE9900
- #FE9900
- Orange
- Dark
- Nearest: Orange
#FE9900 is a orange with RGB values 254, 153, 0 and HSL 36°, 100%, 50%. It is a dark colour, so black text on it reaches 9.8:1 contrast (AAA for normal text). The nearest named colour is Orange.
Colour values
#FE9900#FE9900
HEX#FE9900
RGBrgb(254, 153, 0)
RGB (0–1)0.9961, 0.6, 0
RGB percentages99.6%, 60%, 0%
HSLhsl(36.1, 100%, 49.8%)
HSV / HSBhsv(36.1, 100%, 99.6%)
CMYK0%, 39.8%, 100%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,685,312
CSS custom property--colour: #FE9900;
Brightness & contrast
Relative luminance0.43853WCAG 2.x, 0 is black and 1 is white
Perceived brightness181.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.77:1
Contrast with white2.15:1WCAG normal text: Fail
Contrast with black9.77:1WCAG normal text: AAA
Greyscale equivalent#A3A3A3
Inverted#0166FF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.15:1WCAG large text: Fail
Contrast with black, large text9.77:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#0065FE
Analogous#FE1A00, #E4FE00
Triadic#00FE99, #9900FE
Split complementary#00E4FE, #1A00FE
Tetradic#00FE1A, #0065FE, #FE00E4
Tints, shades & saturation
Channel breakdown
R254
G153
B0
Red254 (99.6%)
Green153 (60%)
Blue0 (0%)
Hue36.14°
Saturation (HSL)100%
Lightness49.8%
Dominant channelRed
Hex per channelR FE · G 99 · B 00
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Also reads as
Fe9900 (chemical formula)
- Formula
- 552,865.5 g/mol
- 9900 atoms
Fe9900 has a molar mass of 552,865.5 g/mol, made up of 9900 atoms across 1 element: 9900 × Fe.
Molar mass
Molar mass552,865.5 g/mol
Total atoms per molecule9900
Distinct elements1
Mass of one molecule9.1805476 × 10^-19 g
Molecules per gram1.0892596 × 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
Fe100%
Iron (Fe × 9900)552,865.5 g/mol, 100%
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