Recognised as Colour
#BB7B37
- #BB7B37
- Orange
- Dark
- Nearest: Peru
#BB7B37 is a orange with RGB values 187, 123, 55 and HSL 31°, 55%, 47%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Peru.
Colour values
#BB7B37#BB7B37
HEX#BB7B37
RGBrgb(187, 123, 55)
RGB (0–1)0.7333, 0.4824, 0.2157
RGB percentages73.3%, 48.2%, 21.6%
HSLhsl(30.9, 54.5%, 47.5%)
HSV / HSBhsv(30.9, 70.6%, 73.3%)
CMYK0%, 34.2%, 70.6%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,286,775
CSS custom property--colour: #BB7B37;
Brightness & contrast
Relative luminance0.25007WCAG 2.x, 0 is black and 1 is white
Perceived brightness140.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6:1
Contrast with white3.5:1WCAG normal text: Fail
Contrast with black6:1WCAG normal text: AA
Greyscale equivalent#848484
Inverted#4484C8
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.5:1WCAG large text: AA
Contrast with black, large text6:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3777BB
Analogous#BB3937, #B9BB37
Triadic#37BB7B, #7B37BB
Split complementary#37B9BB, #3937BB
Tetradic#37BB39, #3777BB, #BB37B9
Tints, shades & saturation
Channel breakdown
R187
G123
B55
Red187 (73.3%)
Green123 (48.2%)
Blue55 (21.6%)
Hue30.91°
Saturation (HSL)54.55%
Lightness47.45%
Dominant channelRed
Hex per channelR BB · G 7B · B 37
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Harmonies
Similar named colours
Also reads as
BB7B37 (chemical formula)
- Formula
- 486.45 g/mol
- 45 atoms
BB7B37 has a molar mass of 486.45 g/mol, made up of 45 atoms across 1 element: 45 × B.
Molar mass
Molar mass486.45 g/mol
Total atoms per molecule45
Distinct elements1
Mass of one molecule8.0776923 × 10^-22 g
Molecules per gram1.2379773 × 10^21
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
B100%
Boron (B × 45)486.45 g/mol, 100%
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Elements in this formula
Nerdulate something else
Nothing in mind? Surprise me · today’s page