Recognised as Colour

#F8522F

#F8522F
Red
Dark
Nearest: Tomato

#F8522F is a red with RGB values 248, 82, 47 and HSL 10°, 93%, 58%. It is a dark colour, so black text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#F8522F#F8522F

HEX#F8522F

RGBrgb(248, 82, 47)

RGB (0–1)0.9725, 0.3216, 0.1843

RGB percentages97.3%, 32.2%, 18.4%

HSLhsl(10.4, 93.5%, 57.8%)

HSV / HSBhsv(10.4, 81%, 97.3%)

CMYK0%, 66.9%, 81%, 2.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,273,967

CSS custom property--colour: #F8522F;

Brightness & contrast

Relative luminance0.26196WCAG 2.x, 0 is black and 1 is white

Perceived brightness150.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.24:1

Contrast with white3.37:1WCAG normal text: Fail

Contrast with black6.24:1WCAG normal text: AA

Greyscale equivalent#737373

Inverted#07ADD0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#837529no red cones; affects about 1% of men; ΔE 67.3 from the original

Deuteranopia#AC9A27no green cones; the most common form, about 1% of men; ΔE 67.7 from the original

Tritanopia#FF184Cno blue cones; rare, and affects men and women equally; ΔE 26.6 from the original

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

Contrast with white, large text3.37:1WCAG large text: AA

Contrast with black, large text6.24:1WCAG large text: AAA

Named colours

Tomato · ΔE 9.3 Orange red · ΔE 16.2 Coral · ΔE 19.7 Red · ΔE 23.3 Chocolate · ΔE 24.8 Crimson · ΔE 25

Nearest named CSS colourTomato (#FF6347)ΔE 9.32, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2FD5F8

Analogous#F82F70, #F8B62F

Triadic#2FF852, #522FF8

Split complementary#2FF8B7, #2F70F8

Tetradic#71F82F, #2FD5F8, #B72FF8

Tints, shades & saturation

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

Lighter +40%#FFF6F4

Lighter +30%#FDCDC3

Lighter +20%#FBA492

Lighter +10%#FA7B60

Darker −10%#EC3008

Darker −20%#BB2606

Darker −30%#891C05

Darker −40%#581203

More saturated +25%#FF4D28

Less saturated −25%#DD644A

Channel breakdown

R248

G82

B47

Red248 (97.3%)

Green82 (32.2%)

Blue47 (18.4%)

Hue10.45°

Saturation (HSL)93.49%

Lightness57.84%

Dominant channelRed

Hex per channelR F8 · G 52 · B 2F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F8522F (chemical formula)

Formula
161,919.954 g/mol
8523 atoms

F8522F has a molar mass of 161,919.954 g/mol, made up of 8523 atoms across 1 element: 8523 × F.

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Molar mass

Molar mass161,919.954 g/mol

Total atoms per molecule8523

Distinct elements1

Mass of one molecule2.6887441 × 10^-19 g

Molecules per gram3.7192085 × 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 × 8523)161,919.954 g/mol, 100%

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Elements in this formula

Fluorine

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