Recognised as Colour

#BC2157

#BC2157
Red
Dark
Nearest: Indian red

#BC2157 is a red with RGB values 188, 33, 87 and HSL 339°, 70%, 43%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#BC2157#BC2157

HEX#BC2157

RGBrgb(188, 33, 87)

RGB (0–1)0.7373, 0.1294, 0.3412

RGB percentages73.7%, 12.9%, 34.1%

HSLhsl(339.1, 70.1%, 43.3%)

HSV / HSBhsv(339.1, 82.4%, 73.7%)

CMYK0%, 82.4%, 53.7%, 26.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,329,303

CSS custom property--colour: #BC2157;

Brightness & contrast

Relative luminance0.12467WCAG 2.x, 0 is black and 1 is white

Perceived brightness109.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.01:1

Contrast with white6.01:1WCAG normal text: AA

Contrast with black3.49:1WCAG normal text: Fail

Greyscale equivalent#464646

Inverted#43DEA8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4C4F58no red cones; affects about 1% of men; ΔE 63.2 from the original

Deuteranopia#746E53no green cones; the most common form, about 1% of men; ΔE 64.7 from the original

Tritanopia#CD003Ano blue cones; rare, and affects men and women equally; ΔE 21.8 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text6.01:1WCAG large text: AAA

Contrast with black, large text3.49:1WCAG large text: AA

Named colours

Indian red · ΔE 24.3 Brown · ΔE 25.1 Medium violet red · ΔE 26.1 Pale violetred · ΔE 26.2 Crimson · ΔE 26.7 Firebrick · ΔE 29.3

Nearest named CSS colourIndian red (#CD5C5C)ΔE 24.28, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#21BC86

Analogous#BC21A4, #BC3921

Triadic#57BC21, #2157BC

Split complementary#21BC39, #21A4BC

Tetradic#A4BC21, #21BC86, #3921BC

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#F2B7CB

Lighter +30%#EB8BAD

Lighter +20%#E3608E

Lighter +10%#DB356F

Darker −10%#911943

Darker −20%#65122F

Darker −30%#3A0A1B

Darker −40%#0E0307

More saturated +25%#D8054F

Less saturated −25%#A03D5F

Channel breakdown

R188

G33

B87

Red188 (73.7%)

Green33 (12.9%)

Blue87 (34.1%)

Hue339.1°

Saturation (HSL)70.14%

Lightness43.33%

Dominant channelRed

Hex per channelR BC · G 21 · B 57

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

BC2157 (chemical formula)

Formula
25,918.537 g/mol
2158 atoms

BC2157 has a molar mass of 25,918.537 g/mol, made up of 2158 atoms across 2 elements: 1 × B, 2157 × C.

Open this reading on its own page →

Molar mass

Molar mass25,918.537 g/mol

Total atoms per molecule2158

Distinct elements2

Mass of one molecule4.3038743 × 10^-20 g

Molecules per gram2.3234879 × 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

B0%

C100%

Boron (B)10.81 g/mol, 0.042%

Carbon (C × 2157)25,907.727 g/mol, 99.958%

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