Recognised as Colour

#FB4846

#FB4846
Red
Dark
Nearest: Tomato

#FB4846 is a red with RGB values 251, 72, 70 and HSL 1°, 96%, 63%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#FB4846#FB4846

HEX#FB4846

RGBrgb(251, 72, 70)

RGB (0–1)0.9843, 0.2824, 0.2745

RGB percentages98.4%, 28.2%, 27.5%

HSLhsl(0.7, 95.8%, 62.9%)

HSV / HSBhsv(0.7, 72.1%, 98.4%)

CMYK0%, 71.3%, 72.1%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,468,038

CSS custom property--colour: #FB4846;

Brightness & contrast

Relative luminance0.25586WCAG 2.x, 0 is black and 1 is white

Perceived brightness149.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.12:1

Contrast with white3.43:1WCAG normal text: Fail

Contrast with black6.12:1WCAG normal text: AA

Greyscale equivalent#6E6E6E

Inverted#04B7B9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7C7244no red cones; affects about 1% of men; ΔE 72.3 from the original

Deuteranopia#A99940no green cones; the most common form, about 1% of men; ΔE 72.6 from the original

Tritanopia#FF004Ano blue cones; rare, and affects men and women equally; ΔE 16.4 from the original

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

Contrast with white, large text3.43:1WCAG large text: AA

Contrast with black, large text6.12:1WCAG large text: AAA

Named colours

Tomato · ΔE 11.3 Crimson · ΔE 13.9 Firebrick · ΔE 22 Coral · ΔE 24.4 Salmon · ΔE 26.9 Orange red · ΔE 27.3

Nearest named CSS colourTomato (#FF6347)ΔE 11.29, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#46F9FB

Analogous#FB469E, #FBA346

Triadic#46FB48, #4846FB

Split complementary#46FBA3, #469EFB

Tetradic#9EFB46, #46F9FB, #A346FB

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FEDCDC

Lighter +20%#FDABAA

Lighter +10%#FC7978

Darker −10%#FA1714

Darker −20%#D60705

Darker −30%#A40504

Darker −40%#730402

More saturated +25%#FF4442

Less saturated −25%#E35F5E

Channel breakdown

R251

G72

B70

Red251 (98.4%)

Green72 (28.2%)

Blue70 (27.5%)

Hue0.66°

Saturation (HSL)95.77%

Lightness62.94%

Dominant channelRed

Hex per channelR FB · G 48 · B 46

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FB4846 (chemical formula)

Formula
52,404.258 g/mol
4847 atoms

FB4846 has a molar mass of 52,404.258 g/mol, made up of 4847 atoms across 2 elements: 1 × F, 4846 × B.

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Molar mass

Molar mass52,404.258 g/mol

Total atoms per molecule4847

Distinct elements2

Mass of one molecule8.7019318 × 10^-20 g

Molecules per gram1.1491701 × 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

F0%

B100%

Fluorine (F)18.998 g/mol, 0.036%

Boron (B × 4846)52,385.26 g/mol, 99.964%

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