Recognised as Colour

#BB4230

#BB4230
Red
Dark
Nearest: Brown

#BB4230 is a red with RGB values 187, 66, 48 and HSL 8°, 59%, 46%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#BB4230#BB4230

HEX#BB4230

RGBrgb(187, 66, 48)

RGB (0–1)0.7333, 0.2588, 0.1882

RGB percentages73.3%, 25.9%, 18.8%

HSLhsl(7.8, 59.1%, 46.1%)

HSV / HSBhsv(7.8, 74.3%, 73.3%)

CMYK0%, 64.7%, 74.3%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,272,176

CSS custom property--colour: #BB4230;

Brightness & contrast

Relative luminance0.14675WCAG 2.x, 0 is black and 1 is white

Perceived brightness115.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.34:1

Contrast with white5.34:1WCAG normal text: AA

Contrast with black3.93:1WCAG normal text: Fail

Greyscale equivalent#5A5A5A

Inverted#44BDCF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#645A2Dno red cones; affects about 1% of men; ΔE 51.7 from the original

Deuteranopia#82752Cno green cones; the most common form, about 1% of men; ΔE 52.3 from the original

Tritanopia#CE223Fno blue cones; rare, and affects men and women equally; ΔE 18.9 from the original

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

Contrast with white, large text5.34:1WCAG large text: AAA

Contrast with black, large text3.93:1WCAG large text: AA

Named colours

Brown · ΔE 10.1 Firebrick · ΔE 10.2 Indian red · ΔE 17 Dark red · ΔE 18 Sienna · ΔE 18.5 Maroon · ΔE 19.7

Nearest named CSS colourBrown (#A52A2A)ΔE 10.07, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#30A9BB

Analogous#BB3064, #BB8730

Triadic#30BB42, #4230BB

Split complementary#30BB87, #3064BB

Tetradic#64BB30, #30A9BB, #8830BB

Tints, shades & saturation

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

Lighter +40%#F0CCC7

Lighter +30%#E6A79E

Lighter +20%#DC8375

Lighter +10%#D15E4D

Darker −10%#923426

Darker −20%#6A251B

Darker −30%#411711

Darker −40%#190906

More saturated +25%#D82C13

Less saturated −25%#9E584D

Channel breakdown

R187

G66

B48

Red187 (73.3%)

Green66 (25.9%)

Blue48 (18.8%)

Hue7.77°

Saturation (HSL)59.15%

Lightness46.08%

Dominant channelRed

Hex per channelR BB · G 42 · B 30

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BB4230 (chemical formula)

Formula
45,737.11 g/mol
4231 atoms

BB4230 has a molar mass of 45,737.11 g/mol, made up of 4231 atoms across 1 element: 4231 × B.

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Molar mass

Molar mass45,737.11 g/mol

Total atoms per molecule4231

Distinct elements1

Mass of one molecule7.5948258 × 10^-20 g

Molecules per gram1.3166859 × 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

B100%

Boron (B × 4231)45,737.11 g/mol, 100%

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Elements in this formula

Boron

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