Recognised as Colour
#B1BF58
- #B1BF58
- Yellow
- Dark
- Nearest: Dark khaki
#B1BF58 is a yellow with RGB values 177, 191, 88 and HSL 68°, 45%, 55%. It is a dark colour, so black text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Dark khaki.
Colour values
#B1BF58#B1BF58
HEX#B1BF58
RGBrgb(177, 191, 88)
RGB (0–1)0.6941, 0.749, 0.3451
RGB percentages69.4%, 74.9%, 34.5%
HSLhsl(68.2, 44.6%, 54.7%)
HSV / HSBhsv(68.2, 53.9%, 74.9%)
CMYK7.3%, 0%, 53.9%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,648,856
CSS custom property--colour: #B1BF58;
Brightness & contrast
Relative luminance0.47313WCAG 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 10.46:1
Contrast with white2.01:1WCAG normal text: Fail
Contrast with black10.46:1WCAG normal text: AAA
Greyscale equivalent#B5B5B5
Inverted#4E40A7
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.01:1WCAG large text: Fail
Contrast with black, large text10.46:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#6658BF
Analogous#BF9A58, #7EBF58
Triadic#58B1BF, #BF58B1
Split complementary#587EBF, #9958BF
Tetradic#58BF99, #6658BF, #BF587E
Tints, shades & saturation
Channel breakdown
R177
G191
B88
Red177 (69.4%)
Green191 (74.9%)
Blue88 (34.5%)
Hue68.16°
Saturation (HSL)44.59%
Lightness54.71%
Dominant channelGreen
Hex per channelR B1 · G BF · B 58
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Also reads as
B1BF58 (chemical formula)
- Formula
- 1,123.504 g/mol
- 60 atoms
B1BF58 has a molar mass of 1,123.504 g/mol, made up of 60 atoms across 2 elements: 2 × B, 58 × F.
Molar mass
Molar mass1,123.504 g/mol
Total atoms per molecule60
Distinct elements2
Mass of one molecule1.8656223 × 10^-21 g
Molecules per gram5.3601418 × 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
B1.9%
F98.1%
Boron (B × 2)21.62 g/mol, 1.924%
Fluorine (F × 58)1,101.884 g/mol, 98.076%
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