Recognised as Colour

#B5384F

#B5384F
Red
Dark
Nearest: Indian red

#B5384F is a red with RGB values 181, 56, 79 and HSL 349°, 53%, 46%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#B5384F#B5384F

HEX#B5384F

RGBrgb(181, 56, 79)

RGB (0–1)0.7098, 0.2196, 0.3098

RGB percentages71%, 22%, 31%

HSLhsl(349, 52.7%, 46.5%)

HSV / HSBhsv(349, 69.1%, 71%)

CMYK0%, 69.1%, 56.4%, 29%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,876,431

CSS custom property--colour: #B5384F;

Brightness & contrast

Relative luminance0.13217WCAG 2.x, 0 is black and 1 is white

Perceived brightness111.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.76:1

Contrast with white5.76:1WCAG normal text: AA

Contrast with black3.64:1WCAG normal text: Fail

Greyscale equivalent#545454

Inverted#4AC7B0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#57554Fno red cones; affects about 1% of men; ΔE 53.9 from the original

Deuteranopia#776F4Cno green cones; the most common form, about 1% of men; ΔE 54.7 from the original

Tritanopia#C61D41no blue cones; rare, and affects men and women equally; ΔE 15.4 from the original

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

Contrast with white, large text5.76:1WCAG large text: AAA

Contrast with black, large text3.64:1WCAG large text: AA

Named colours

Indian red · ΔE 14.1 Brown · ΔE 16.2 Firebrick · ΔE 23 Pale violetred · ΔE 23.9 Light coral · ΔE 25.1 Crimson · ΔE 26.7

Nearest named CSS colourIndian red (#CD5C5C)ΔE 14.1, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#38B59E

Analogous#B5388D, #B55F38

Triadic#4FB538, #384FB5

Split complementary#38B55F, #388DB5

Tetradic#8EB538, #38B59E, #6038B5

Tints, shades & saturation

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

Lighter +40%#EFCAD1

Lighter +30%#E3A3AF

Lighter +20%#D77C8D

Lighter +10%#CB556B

Darker −10%#8E2C3E

Darker −20%#67202D

Darker −30%#40141C

Darker −40%#19080B

More saturated +25%#D31A3C

Less saturated −25%#975662

Channel breakdown

R181

G56

B79

Red181 (71%)

Green56 (22%)

Blue79 (31%)

Hue348.96°

Saturation (HSL)52.74%

Lightness46.47%

Dominant channelRed

Hex per channelR B5 · G 38 · B 4F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B5384F (chemical formula)

Formula
58,220.038 g/mol
5385 atoms

B5384F has a molar mass of 58,220.038 g/mol, made up of 5385 atoms across 2 elements: 5384 × B, 1 × F.

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Molar mass

Molar mass58,220.038 g/mol

Total atoms per molecule5385

Distinct elements2

Mass of one molecule9.6676648 × 10^-20 g

Molecules per gram1.034376 × 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%

F0%

Boron (B × 5384)58,201.04 g/mol, 99.967%

Fluorine (F)18.998 g/mol, 0.033%

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