Recognised as Colour

#CB522F

#CB522F
Red
Dark
Nearest: Firebrick

#CB522F is a red with RGB values 203, 82, 47 and HSL 13°, 62%, 49%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#CB522F#CB522F

HEX#CB522F

RGBrgb(203, 82, 47)

RGB (0–1)0.7961, 0.3216, 0.1843

RGB percentages79.6%, 32.2%, 18.4%

HSLhsl(13.5, 62.4%, 49%)

HSV / HSBhsv(13.5, 76.8%, 79.6%)

CMYK0%, 59.6%, 76.8%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,324,847

CSS custom property--colour: #CB522F;

Brightness & contrast

Relative luminance0.18936WCAG 2.x, 0 is black and 1 is white

Perceived brightness128.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.79:1

Contrast with white4.39:1WCAG normal text: Fail

Contrast with black4.79:1WCAG normal text: AA

Greyscale equivalent#696969

Inverted#34ADD0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#74682Ano red cones; affects about 1% of men; ΔE 50.8 from the original

Deuteranopia#92832Bno green cones; the most common form, about 1% of men; ΔE 51.3 from the original

Tritanopia#DF354Bno blue cones; rare, and affects men and women equally; ΔE 24.2 from the original

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

Contrast with white, large text4.39:1WCAG large text: AA

Contrast with black, large text4.79:1WCAG large text: AAA

Named colours

Firebrick · ΔE 16.3 Tomato · ΔE 16.6 Chocolate · ΔE 16.6 Coral · ΔE 17.1 Brown · ΔE 19 Sienna · ΔE 20

Nearest named CSS colourFirebrick (#B22222)ΔE 16.31, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2FA8CB

Analogous#CB2F5A, #CBA02F

Triadic#2FCB52, #522FCB

Split complementary#2FCBA0, #2F5ACB

Tetradic#5ACB2F, #2FA8CB, #A02FCB

Tints, shades & saturation

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

Lighter +40%#F4D9D2

Lighter +30%#EBB7A8

Lighter +20%#E1957F

Lighter +10%#D87355

Darker −10%#A24125

Darker −20%#78311C

Darker −30%#4F2012

Darker −40%#250F09

More saturated +25%#EA4110

Less saturated −25%#AC634E

Channel breakdown

R203

G82

B47

Red203 (79.6%)

Green82 (32.2%)

Blue47 (18.4%)

Hue13.46°

Saturation (HSL)62.4%

Lightness49.02%

Dominant channelRed

Hex per channelR CB · G 52 · B 2F

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

CB522F (chemical formula)

Formula
5,673.829 g/mol
524 atoms

CB522F has a molar mass of 5,673.829 g/mol, made up of 524 atoms across 3 elements: 1 × C, 522 × B, 1 × F.

Open this reading on its own page →

Molar mass

Molar mass5,673.829 g/mol

Total atoms per molecule524

Distinct elements3

Mass of one molecule9.4216147 × 10^-21 g

Molecules per gram1.0613892 × 10^20

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

C0.2%

B99.5%

F0.3%

Carbon (C)12.011 g/mol, 0.212%

Boron (B × 522)5,642.82 g/mol, 99.453%

Fluorine (F)18.998 g/mol, 0.335%

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