Recognised as Colour
#F9AC15
- #F9AC15
- Orange
- Dark
- Nearest: Orange
#F9AC15 is a orange with RGB values 249, 172, 21 and HSL 40°, 95%, 53%. It is a dark colour, so black text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Orange.
Colour values
#F9AC15#F9AC15
HEX#F9AC15
RGBrgb(249, 172, 21)
RGB (0–1)0.9765, 0.6745, 0.0824
RGB percentages97.6%, 67.5%, 8.2%
HSLhsl(39.7, 95%, 52.9%)
HSV / HSBhsv(39.7, 91.6%, 97.6%)
CMYK0%, 30.9%, 91.6%, 2.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,362,517
CSS custom property--colour: #F9AC15;
Brightness & contrast
Relative luminance0.49699WCAG 2.x, 0 is black and 1 is white
Perceived brightness189.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.94:1
Contrast with white1.92:1WCAG normal text: Fail
Contrast with black10.94:1WCAG normal text: AAA
Greyscale equivalent#B1B1B1
Inverted#0653EA
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.92:1WCAG large text: Fail
Contrast with black, large text10.94:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1562F9
Analogous#F93A15, #D4F915
Triadic#15F9AC, #AC15F9
Split complementary#15D4F9, #3A15F9
Tetradic#15F93A, #1562F9, #F915D4
Tints, shades & saturation
Channel breakdown
R249
G172
B21
Red249 (97.6%)
Green172 (67.5%)
Blue21 (8.2%)
Hue39.74°
Saturation (HSL)95%
Lightness52.94%
Dominant channelRed
Hex per channelR F9 · G AC · B 15
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Harmonies
Similar named colours
Also reads as
F9Ac15 (chemical formula)
- Formula
- 3,575.982 g/mol
- 24 atoms
F9Ac15 has a molar mass of 3,575.982 g/mol, made up of 24 atoms across 2 elements: 9 × F, 15 × Ac.
Molar mass
Molar mass3,575.982 g/mol
Total atoms per molecule24
Distinct elements2
Mass of one molecule5.9380578 × 10^-21 g
Molecules per gram1.6840523 × 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
F4.8%
Ac95.2%
Fluorine (F × 9)170.982 g/mol, 4.781%
Actinium (Ac × 15)3,405 g/mol, 95.219%
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