Recognised as Colour
#FFAC20
- #FFAC20
- Orange
- Light
- Nearest: Orange
#FFAC20 is a orange with RGB values 255, 172, 32 and HSL 38°, 100%, 56%. It is a light colour, so black text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Orange.
Colour values
#FFAC20#FFAC20
HEX#FFAC20
RGBrgb(255, 172, 32)
RGB (0–1)1, 0.6745, 0.1255
RGB percentages100%, 67.5%, 12.5%
HSLhsl(37.7, 100%, 56.3%)
HSV / HSBhsv(37.7, 87.5%, 100%)
CMYK0%, 32.5%, 87.5%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,755,744
CSS custom property--colour: #FFAC20;
Brightness & contrast
Relative luminance0.50869WCAG 2.x, 0 is black and 1 is white
Perceived brightness192.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.17:1
Contrast with white1.88:1WCAG normal text: Fail
Contrast with black11.17:1WCAG normal text: AAA
Greyscale equivalent#B4B4B4
Inverted#0053DF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.88:1WCAG large text: Fail
Contrast with black, large text11.17:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#2073FF
Analogous#FF3D20, #E2FF20
Triadic#20FFAC, #AC20FF
Split complementary#20E2FF, #3D20FF
Tetradic#20FF3D, #2073FF, #FF20E3
Tints, shades & saturation
Channel breakdown
R255
G172
B32
Red255 (100%)
Green172 (67.5%)
Blue32 (12.5%)
Hue37.67°
Saturation (HSL)100%
Lightness56.27%
Dominant channelRed
Hex per channelR FF · G AC · B 20
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Harmonies
Similar named colours
Also reads as
FFAc20 (chemical formula)
- Formula
- 4,577.996 g/mol
- 22 atoms
FFAc20 has a molar mass of 4,577.996 g/mol, made up of 22 atoms across 2 elements: 2 × F, 20 × Ac.
Molar mass
Molar mass4,577.996 g/mol
Total atoms per molecule22
Distinct elements2
Mass of one molecule7.6019412 × 10^-21 g
Molecules per gram1.3154535 × 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
F0.8%
Ac99.2%
Fluorine (F × 2)37.996 g/mol, 0.83%
Actinium (Ac × 20)4,540 g/mol, 99.17%
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