Recognised as Colour

#CB454F

#CB454F
Red
Dark
Nearest: Indian red

#CB454F is a red with RGB values 203, 69, 79 and HSL 356°, 56%, 53%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#CB454F#CB454F

HEX#CB454F

RGBrgb(203, 69, 79)

RGB (0–1)0.7961, 0.2706, 0.3098

RGB percentages79.6%, 27.1%, 31%

HSLhsl(355.5, 56.3%, 53.3%)

HSV / HSBhsv(355.5, 66%, 79.6%)

CMYK0%, 66%, 61.1%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,321,551

CSS custom property--colour: #CB454F;

Brightness & contrast

Relative luminance0.17517WCAG 2.x, 0 is black and 1 is white

Perceived brightness125.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.66:1

Contrast with white4.66:1WCAG normal text: AA

Contrast with black4.5:1WCAG normal text: AA

Greyscale equivalent#626262

Inverted#34BAB0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#68624Eno red cones; affects about 1% of men; ΔE 56.5 from the original

Deuteranopia#8A7F4Bno green cones; the most common form, about 1% of men; ΔE 57.6 from the original

Tritanopia#DE274Ano 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 text4.66:1WCAG large text: AAA

Contrast with black, large text4.5:1WCAG large text: AAA

Named colours

Indian red · ΔE 10 Brown · ΔE 13.8 Firebrick · ΔE 17.1 Crimson · ΔE 20 Light coral · ΔE 20.8 Salmon · ΔE 20.8

Nearest named CSS colourIndian red (#CD5C5C)ΔE 9.99, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#45CBC1

Analogous#CB4592, #CB7E45

Triadic#4FCB45, #454FCB

Split complementary#45CB7E, #4592CB

Tetradic#92CB45, #45CBC1, #7E45CB

Tints, shades & saturation

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

Lighter +40%#F8E4E6

Lighter +30%#ECBDC0

Lighter +20%#E1959A

Lighter +10%#D66D75

Darker −10%#AD303A

Darker −20%#85252C

Darker −30%#5D1A1F

Darker −40%#350F12

More saturated +25%#E92736

Less saturated −25%#AD6368

Channel breakdown

R203

G69

B79

Red203 (79.6%)

Green69 (27.1%)

Blue79 (31%)

Hue355.52°

Saturation (HSL)56.3%

Lightness53.33%

Dominant channelRed

Hex per channelR CB · G 45 · B 4F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

CB454F (chemical formula)

Formula
4,938.749 g/mol
456 atoms

CB454F has a molar mass of 4,938.749 g/mol, made up of 456 atoms across 3 elements: 1 × C, 454 × B, 1 × F.

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Molar mass

Molar mass4,938.749 g/mol

Total atoms per molecule456

Distinct elements3

Mass of one molecule8.2009857 × 10^-21 g

Molecules per gram1.2193656 × 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%

B99.4%

F0.4%

Carbon (C)12.011 g/mol, 0.243%

Boron (B × 454)4,907.74 g/mol, 99.372%

Fluorine (F)18.998 g/mol, 0.385%

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