Recognised as Colour
#CBB421
- #CBB421
- Yellow
- Dark
- Nearest: Goldenrod
#CBB421 is a yellow with RGB values 203, 180, 33 and HSL 52°, 72%, 46%. It is a dark colour, so black text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Goldenrod.
Colour values
#CBB421#CBB421
HEX#CBB421
RGBrgb(203, 180, 33)
RGB (0–1)0.7961, 0.7059, 0.1294
RGB percentages79.6%, 70.6%, 12.9%
HSLhsl(51.9, 72%, 46.3%)
HSV / HSBhsv(51.9, 83.7%, 79.6%)
CMYK0%, 11.3%, 83.7%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,349,921
CSS custom property--colour: #CBB421;
Brightness & contrast
Relative luminance0.45449WCAG 2.x, 0 is black and 1 is white
Perceived brightness177.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.09:1
Contrast with white2.08:1WCAG normal text: Fail
Contrast with black10.09:1WCAG normal text: AAA
Greyscale equivalent#AEAEAE
Inverted#344BDE
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.08:1WCAG large text: Fail
Contrast with black, large text10.09:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#2138CB
Analogous#CB5F21, #8DCB21
Triadic#21CBB4, #B421CB
Split complementary#218DCB, #5F21CB
Tetradic#21CB5F, #2138CB, #CB218D
Tints, shades & saturation
Channel breakdown
R203
G180
B33
Red203 (79.6%)
Green180 (70.6%)
Blue33 (12.9%)
Hue51.88°
Saturation (HSL)72.03%
Lightness46.27%
Dominant channelRed
Hex per channelR CB · G B4 · B 21
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Also reads as
CBB421 (chemical formula)
- Formula
- 4,573.831 g/mol
- 423 atoms
CBB421 has a molar mass of 4,573.831 g/mol, made up of 423 atoms across 2 elements: 1 × C, 422 × B.
Molar mass
Molar mass4,573.831 g/mol
Total atoms per molecule423
Distinct elements2
Mass of one molecule7.5950251 × 10^-21 g
Molecules per gram1.3166513 × 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
C0.3%
B99.7%
Carbon (C)12.011 g/mol, 0.263%
Boron (B × 422)4,561.82 g/mol, 99.737%
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