Recognised as Colour

#FF7021

#FF7021
Orange
Dark
Nearest: Chocolate

#FF7021 is a orange with RGB values 255, 112, 33 and HSL 21°, 100%, 56%. It is a dark colour, so black text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Chocolate.

Colour values

#FF7021#FF7021

HEX#FF7021

RGBrgb(255, 112, 33)

RGB (0–1)1, 0.4392, 0.1294

RGB percentages100%, 43.9%, 12.9%

HSLhsl(21.4, 100%, 56.5%)

HSV / HSBhsv(21.4, 87.1%, 100%)

CMYK0%, 56.1%, 87.1%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,740,385

CSS custom property--colour: #FF7021;

Brightness & contrast

Relative luminance0.32958WCAG 2.x, 0 is black and 1 is white

Perceived brightness164.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.59:1

Contrast with white2.77:1WCAG normal text: Fail

Contrast with black7.59:1WCAG normal text: AAA

Greyscale equivalent#898989

Inverted#008FDE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#99870Eno red cones; affects about 1% of men; ΔE 56.7 from the original

Deuteranopia#BCA819no green cones; the most common form, about 1% of men; ΔE 57.6 from the original

Tritanopia#FF4D62no blue cones; rare, and affects men and women equally; ΔE 41 from the original

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

Contrast with white, large text2.77:1WCAG large text: Fail

Contrast with black, large text7.59:1WCAG large text: AAA

Named colours

Chocolate · ΔE 18.1 Dark orange · ΔE 18.3 Orange red · ΔE 18.5 Coral · ΔE 18.7 Tomato · ΔE 20 Red · ΔE 31.3

Nearest named CSS colourChocolate (#D2691E)ΔE 18.08, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#21B0FF

Analogous#FF2141, #FFDF21

Triadic#21FF70, #7021FF

Split complementary#21FFDF, #2141FF

Tetradic#41FF21, #21B0FF, #DF21FF

Tints, shades & saturation

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

Lighter +40%#FFF3ED

Lighter +30%#FFD3BA

Lighter +20%#FFB287

Lighter +10%#FF9154

Darker −10%#ED5400

Darker −20%#BA4200

Darker −30%#873000

Darker −40%#541E00

More saturated +25%#FF7021

Less saturated −25%#E3783D

Channel breakdown

R255

G112

B33

Red255 (100%)

Green112 (43.9%)

Blue33 (12.9%)

Hue21.35°

Saturation (HSL)100%

Lightness56.47%

Dominant channelRed

Hex per channelR FF · G 70 · B 21

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF7021 (chemical formula)

Formula
133,403.956 g/mol
7022 atoms

FF7021 has a molar mass of 133,403.956 g/mol, made up of 7022 atoms across 1 element: 7022 × F.

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Molar mass

Molar mass133,403.956 g/mol

Total atoms per molecule7022

Distinct elements1

Mass of one molecule2.2152248 × 10^-19 g

Molecules per gram4.5142145 × 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 × 7022)133,403.956 g/mol, 100%

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Elements in this formula

Fluorine

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