Recognised as Colour

#F82B38

#F82B38
Red
Dark
Nearest: Crimson

#F82B38 is a red with RGB values 248, 43, 56 and HSL 356°, 94%, 57%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F82B38#F82B38

HEX#F82B38

RGBrgb(248, 43, 56)

RGB (0–1)0.9725, 0.1686, 0.2196

RGB percentages97.3%, 16.9%, 22%

HSLhsl(356.2, 93.6%, 57.1%)

HSV / HSBhsv(356.2, 82.7%, 97.3%)

CMYK0%, 82.7%, 77.4%, 2.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,263,992

CSS custom property--colour: #F82B38;

Brightness & contrast

Relative luminance0.2197WCAG 2.x, 0 is black and 1 is white

Perceived brightness140.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.39:1

Contrast with white3.89:1WCAG normal text: Fail

Contrast with black5.39:1WCAG normal text: AA

Greyscale equivalent#585858

Inverted#07D4C7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6F6536no red cones; affects about 1% of men; ΔE 79.6 from the original

Deuteranopia#A1912Fno green cones; the most common form, about 1% of men; ΔE 79.8 from the original

Tritanopia#FF0033no blue cones; rare, and affects men and women equally; ΔE 7.4 from the original

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

Contrast with white, large text3.89:1WCAG large text: AA

Contrast with black, large text5.39:1WCAG large text: AAA

Named colours

Crimson · ΔE 13.8 Tomato · ΔE 18 Red · ΔE 22.9 Firebrick · ΔE 24.5 Orange red · ΔE 24.8 Coral · ΔE 31.6

Nearest named CSS colourCrimson (#DC143C)ΔE 13.83, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2BF8EB

Analogous#F82B9E, #F8842B

Triadic#38F82B, #2B38F8

Split complementary#2BF884, #2B9EF8

Tetradic#9FF82B, #2BF8EB, #852BF8

Tints, shades & saturation

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

Lighter +40%#FFF0F1

Lighter +30%#FDBFC3

Lighter +20%#FB8E95

Lighter +10%#FA5C66

Darker −10%#E80816

Darker −20%#B70611

Darker −30%#86040D

Darker −40%#540308

More saturated +25%#FF2432

Less saturated −25%#DD4650

Channel breakdown

R248

G43

B56

Red248 (97.3%)

Green43 (16.9%)

Blue56 (22%)

Hue356.2°

Saturation (HSL)93.61%

Lightness57.06%

Dominant channelRed

Hex per channelR F8 · G 2B · B 38

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F82B38 (chemical formula)

Formula
1,968.616 g/mol
120 atoms

F82B38 has a molar mass of 1,968.616 g/mol, made up of 120 atoms across 2 elements: 82 × F, 38 × B.

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Molar mass

Molar mass1,968.616 g/mol

Total atoms per molecule120

Distinct elements2

Mass of one molecule3.2689638 × 10^-21 g

Molecules per gram3.0590734 × 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

F79.1%

B20.9%

Fluorine (F × 82)1,557.836 g/mol, 79.134%

Boron (B × 38)410.78 g/mol, 20.866%

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