Recognised as Colour

#B6351B

#B6351B
Red
Dark
Nearest: Firebrick

#B6351B is a red with RGB values 182, 53, 27 and HSL 10°, 74%, 41%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#B6351B#B6351B

HEX#B6351B

RGBrgb(182, 53, 27)

RGB (0–1)0.7137, 0.2078, 0.1059

RGB percentages71.4%, 20.8%, 10.6%

HSLhsl(10.1, 74.2%, 41%)

HSV / HSBhsv(10.1, 85.2%, 71.4%)

CMYK0%, 70.9%, 85.2%, 28.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,941,147

CSS custom property--colour: #B6351B;

Brightness & contrast

Relative luminance0.1257WCAG 2.x, 0 is black and 1 is white

Perceived brightness107.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.98:1

Contrast with white5.98:1WCAG normal text: AA

Contrast with black3.51:1WCAG normal text: Fail

Greyscale equivalent#4F4F4F

Inverted#49CAE4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5C5116no red cones; affects about 1% of men; ΔE 55 from the original

Deuteranopia#7C6E13no green cones; the most common form, about 1% of men; ΔE 55.3 from the original

Tritanopia#C90031no blue cones; rare, and affects men and women equally; ΔE 20.3 from the original

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

Contrast with white, large text5.98:1WCAG large text: AAA

Contrast with black, large text3.51:1WCAG large text: AA

Named colours

Firebrick · ΔE 9 Dark red · ΔE 14.4 Brown · ΔE 14.6 Maroon · ΔE 17.9 Tomato · ΔE 21.4 Chocolate · ΔE 23

Nearest named CSS colourFirebrick (#B22222)ΔE 9.04, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1B9CB6

Analogous#B61B4E, #B6831B

Triadic#1BB635, #351BB6

Split complementary#1BB682, #1B4FB6

Tetradic#4FB61B, #1B9CB6, #821BB6

Tints, shades & saturation

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

Lighter +40%#F2B7AB

Lighter +30%#EC917E

Lighter +20%#E56A52

Lighter +10%#DF4425

Darker −10%#8A2814

Darker −20%#5D1B0E

Darker −30%#310E07

Darker −40%#040101

More saturated +25%#D02401

Less saturated −25%#9C4635

Channel breakdown

R182

G53

B27

Red182 (71.4%)

Green53 (20.8%)

Blue27 (10.6%)

Hue10.06°

Saturation (HSL)74.16%

Lightness40.98%

Dominant channelRed

Hex per channelR B6 · G 35 · B 1B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B6351B (chemical formula)

Formula
68,665.12 g/mol
6352 atoms

B6351B has a molar mass of 68,665.12 g/mol, made up of 6352 atoms across 1 element: 6352 × B.

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Molar mass

Molar mass68,665.12 g/mol

Total atoms per molecule6352

Distinct elements1

Mass of one molecule1.1402111 × 10^-19 g

Molecules per gram8.7703054 × 10^18

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 × 6352)68,665.12 g/mol, 100%

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Elements in this formula

Boron

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