Recognised as Colour

#F8233F

#F8233F
Red
Dark
Nearest: Crimson

#F8233F is a red with RGB values 248, 35, 63 and HSL 352°, 94%, 55%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F8233F#F8233F

HEX#F8233F

RGBrgb(248, 35, 63)

RGB (0–1)0.9725, 0.1373, 0.2471

RGB percentages97.3%, 13.7%, 24.7%

HSLhsl(352.1, 93.8%, 55.5%)

HSV / HSBhsv(352.1, 85.9%, 97.3%)

CMYK0%, 85.9%, 74.6%, 2.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,261,951

CSS custom property--colour: #F8233F;

Brightness & contrast

Relative luminance0.21517WCAG 2.x, 0 is black and 1 is white

Perceived brightness139.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.3:1

Contrast with white3.96:1WCAG normal text: Fail

Contrast with black5.3:1WCAG normal text: AA

Greyscale equivalent#525252

Inverted#07DCC0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6C633Eno red cones; affects about 1% of men; ΔE 81 from the original

Deuteranopia#9F8F37no green cones; the most common form, about 1% of men; ΔE 81 from the original

Tritanopia#FF0031no blue cones; rare, and affects men and women equally; ΔE 9.6 from the original

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

Contrast with white, large text3.96:1WCAG large text: AA

Contrast with black, large text5.3:1WCAG large text: AAA

Named colours

Crimson · ΔE 10.8 Tomato · ΔE 20.7 Firebrick · ΔE 24.7 Red · ΔE 26.8 Orange red · ΔE 29.6 Brown · ΔE 32.2

Nearest named CSS colourCrimson (#DC143C)ΔE 10.77, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#23F8DC

Analogous#F823AA, #F87223

Triadic#3FF823, #233FF8

Split complementary#23F872, #23A9F8

Tetradic#A9F823, #23F8DC, #7123F8

Tints, shades & saturation

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

Lighter +40%#FEE9EC

Lighter +30%#FDB7C0

Lighter +20%#FB8695

Lighter +10%#FA546A

Darker −10%#E10724

Darker −20%#AF061C

Darker −30%#7E0414

Darker −40%#4D020C

More saturated +25%#FF1C3A

Less saturated −25%#DC3F54

Channel breakdown

R248

G35

B63

Red248 (97.3%)

Green35 (13.7%)

Blue63 (24.7%)

Hue352.11°

Saturation (HSL)93.83%

Lightness55.49%

Dominant channelRed

Hex per channelR F8 · G 23 · B 3F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F8233F (chemical formula)

Formula
156,429.532 g/mol
8234 atoms

F8233F has a molar mass of 156,429.532 g/mol, made up of 8234 atoms across 1 element: 8234 × F.

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Molar mass

Molar mass156,429.532 g/mol

Total atoms per molecule8234

Distinct elements1

Mass of one molecule2.5975735 × 10^-19 g

Molecules per gram3.8497467 × 10^18

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

F100%

Fluorine (F × 8234)156,429.532 g/mol, 100%

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Elements in this formula

Fluorine

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