Recognised as Colour
#C1AC37
- #C1AC37
- Yellow
- Dark
- Nearest: Goldenrod
#C1AC37 is a yellow with RGB values 193, 172, 55 and HSL 51°, 56%, 49%. It is a dark colour, so black text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Goldenrod.
Colour values
#C1AC37#C1AC37
HEX#C1AC37
RGBrgb(193, 172, 55)
RGB (0–1)0.7569, 0.6745, 0.2157
RGB percentages75.7%, 67.5%, 21.6%
HSLhsl(50.9, 55.6%, 48.6%)
HSV / HSBhsv(50.9, 71.5%, 75.7%)
CMYK0%, 10.9%, 71.5%, 24.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,692,535
CSS custom property--colour: #C1AC37;
Brightness & contrast
Relative luminance0.41118WCAG 2.x, 0 is black and 1 is white
Perceived brightness169.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.22:1
Contrast with white2.28:1WCAG normal text: Fail
Contrast with black9.22:1WCAG normal text: AAA
Greyscale equivalent#A8A8A8
Inverted#3E53C8
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.28:1WCAG large text: Fail
Contrast with black, large text9.22:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#374CC1
Analogous#C16737, #91C137
Triadic#37C1AC, #AC37C1
Split complementary#3791C1, #6737C1
Tetradic#37C167, #374CC1, #C13791
Tints, shades & saturation
Channel breakdown
R193
G172
B55
Red193 (75.7%)
Green172 (67.5%)
Blue55 (21.6%)
Hue50.87°
Saturation (HSL)55.65%
Lightness48.63%
Dominant channelRed
Hex per channelR C1 · G AC · B 37
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Harmonies
Similar named colours
Also reads as
C1Ac37 (chemical formula)
- Formula
- 8,411.011 g/mol
- 38 atoms
C1Ac37 has a molar mass of 8,411.011 g/mol, made up of 38 atoms across 2 elements: 1 × C, 37 × Ac.
Molar mass
Molar mass8,411.011 g/mol
Total atoms per molecule38
Distinct elements2
Mass of one molecule1.3966812 × 10^-20 g
Molecules per gram7.1598298 × 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
C0.1%
Ac99.9%
Carbon (C)12.011 g/mol, 0.143%
Actinium (Ac × 37)8,399 g/mol, 99.857%
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