Recognised as Colour

#FB5342

#FB5342
Red
Dark
Nearest: Tomato

#FB5342 is a red with RGB values 251, 83, 66 and HSL 6°, 96%, 62%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#FB5342#FB5342

HEX#FB5342

RGBrgb(251, 83, 66)

RGB (0–1)0.9843, 0.3255, 0.2588

RGB percentages98.4%, 32.5%, 25.9%

HSLhsl(5.5, 95.9%, 62.2%)

HSV / HSBhsv(5.5, 73.7%, 98.4%)

CMYK0%, 66.9%, 73.7%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,470,850

CSS custom property--colour: #FB5342;

Brightness & contrast

Relative luminance0.27089WCAG 2.x, 0 is black and 1 is white

Perceived brightness152.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.42:1

Contrast with white3.27:1WCAG normal text: Fail

Contrast with black6.42:1WCAG normal text: AA

Greyscale equivalent#757575

Inverted#04ACBD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#83773Fno red cones; affects about 1% of men; ΔE 68.1 from the original

Deuteranopia#AD9C3Cno green cones; the most common form, about 1% of men; ΔE 68.5 from the original

Tritanopia#FF1E50no blue cones; rare, and affects men and women equally; ΔE 20.9 from the original

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

Contrast with white, large text3.27:1WCAG large text: AA

Contrast with black, large text6.42:1WCAG large text: AAA

Named colours

Tomato · ΔE 6 Crimson · ΔE 18.7 Coral · ΔE 19.4 Firebrick · ΔE 22.5 Orange red · ΔE 24.1 Salmon · ΔE 25.4

Nearest named CSS colourTomato (#FF6347)ΔE 5.99, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#42EAFB

Analogous#FB428E, #FBB042

Triadic#42FB53, #5342FB

Split complementary#42FBB0, #428DFB

Tetradic#8DFB42, #42EAFB, #B042FB

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FEDBD8

Lighter +20%#FDAEA6

Lighter +10%#FC8074

Darker −10%#FA2610

Darker −20%#D31704

Darker −30%#A11203

Darker −40%#6F0C02

More saturated +25%#FF503E

Less saturated −25%#E3675A

Channel breakdown

R251

G83

B66

Red251 (98.4%)

Green83 (32.5%)

Blue66 (25.9%)

Hue5.51°

Saturation (HSL)95.85%

Lightness62.16%

Dominant channelRed

Hex per channelR FB · G 53 · B 42

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

FB5342 (chemical formula)

Formula
57,766.018 g/mol
5343 atoms

FB5342 has a molar mass of 57,766.018 g/mol, made up of 5343 atoms across 2 elements: 1 × F, 5342 × B.

Open this reading on its own page →

Molar mass

Molar mass57,766.018 g/mol

Total atoms per molecule5343

Distinct elements2

Mass of one molecule9.592273 × 10^-20 g

Molecules per gram1.0425058 × 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, 0.033%

Boron (B × 5342)57,747.02 g/mol, 99.967%

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