Recognised as Colour
#C9B623
- #C9B623
- Yellow
- Dark
- Nearest: Goldenrod
#C9B623 is a yellow with RGB values 201, 182, 35 and HSL 53°, 70%, 46%. It is a dark colour, so black text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Goldenrod.
Colour values
#C9B623#C9B623
HEX#C9B623
RGBrgb(201, 182, 35)
RGB (0–1)0.7882, 0.7137, 0.1373
RGB percentages78.8%, 71.4%, 13.7%
HSLhsl(53.1, 70.3%, 46.3%)
HSV / HSBhsv(53.1, 82.6%, 78.8%)
CMYK0%, 9.5%, 82.6%, 21.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,219,363
CSS custom property--colour: #C9B623;
Brightness & contrast
Relative luminance0.45995WCAG 2.x, 0 is black and 1 is white
Perceived brightness177.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.2:1
Contrast with white2.06:1WCAG normal text: Fail
Contrast with black10.2:1WCAG normal text: AAA
Greyscale equivalent#AFAFAF
Inverted#3649DC
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.06:1WCAG large text: Fail
Contrast with black, large text10.2:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#2336C9
Analogous#C96323, #89C923
Triadic#23C9B6, #B623C9
Split complementary#2389C9, #6323C9
Tetradic#23C963, #2336C9, #C92389
Tints, shades & saturation
Channel breakdown
R201
G182
B35
Red201 (78.8%)
Green182 (71.4%)
Blue35 (13.7%)
Hue53.13°
Saturation (HSL)70.34%
Lightness46.27%
Dominant channelRed
Hex per channelR C9 · G B6 · B 23
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Also reads as
C9B623 (chemical formula)
- Formula
- 6,842.729 g/mol
- 632 atoms
C9B623 has a molar mass of 6,842.729 g/mol, made up of 632 atoms across 2 elements: 9 × C, 623 × B.
Molar mass
Molar mass6,842.729 g/mol
Total atoms per molecule632
Distinct elements2
Mass of one molecule1.1362619 × 10^-20 g
Molecules per gram8.800788 × 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
C1.6%
B98.4%
Carbon (C × 9)108.099 g/mol, 1.58%
Boron (B × 623)6,734.63 g/mol, 98.42%
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