Recognised as Colour

#CA7820

#CA7820
Orange
Dark
Nearest: Peru

#CA7820 is a orange with RGB values 202, 120, 32 and HSL 31°, 73%, 46%. It is a dark colour, so black text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Peru.

Colour values

#CA7820#CA7820

HEX#CA7820

RGBrgb(202, 120, 32)

RGB (0–1)0.7922, 0.4706, 0.1255

RGB percentages79.2%, 47.1%, 12.5%

HSLhsl(31.1, 72.6%, 45.9%)

HSV / HSBhsv(31.1, 84.2%, 79.2%)

CMYK0%, 40.6%, 84.2%, 20.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,269,024

CSS custom property--colour: #CA7820;

Brightness & contrast

Relative luminance0.26094WCAG 2.x, 0 is black and 1 is white

Perceived brightness144.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.22:1

Contrast with white3.38:1WCAG normal text: Fail

Contrast with black6.22:1WCAG normal text: AA

Greyscale equivalent#838383

Inverted#3587DF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#91800Dno red cones; affects about 1% of men; ΔE 31 from the original

Deuteranopia#A59321no green cones; the most common form, about 1% of men; ΔE 31.4 from the original

Tritanopia#DD6568no blue cones; rare, and affects men and women equally; ΔE 41.8 from the original

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

Contrast with white, large text3.38:1WCAG large text: AA

Contrast with black, large text6.22:1WCAG large text: AAA

Named colours

Peru · ΔE 11.1 Chocolate · ΔE 11.4 Dark goldenrod · ΔE 16.9 Sandy brown · ΔE 19.3 Coral · ΔE 23.7 Dark orange · ΔE 24

Nearest named CSS colourPeru (#CD853F)ΔE 11.09, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2072CA

Analogous#CA2320, #C7CA20

Triadic#20CA78, #7820CA

Split complementary#20C7CA, #2320CA

Tetradic#20CA23, #2072CA, #CA20C7

Tints, shades & saturation

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

Lighter +40%#F5DCC1

Lighter +30%#EEC395

Lighter +20%#E7AA69

Lighter +10%#E0913D

Darker −10%#9E5E19

Darker −20%#724412

Darker −30%#462A0B

Darker −40%#1A0F04

More saturated +25%#E77903

Less saturated −25%#AD773D

Channel breakdown

R202

G120

B32

Red202 (79.2%)

Green120 (47.1%)

Blue32 (12.5%)

Hue31.06°

Saturation (HSL)72.65%

Lightness45.88%

Dominant channelRed

Hex per channelR CA · G 78 · B 20

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ca7820 (chemical formula)

Formula
313,409.96 g/mol
7820 atoms

Ca7820 has a molar mass of 313,409.96 g/mol, made up of 7820 atoms across 1 element: 7820 × Ca.

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Molar mass

Molar mass313,409.96 g/mol

Total atoms per molecule7820

Distinct elements1

Mass of one molecule5.2042948 × 10^-19 g

Molecules per gram1.9214899 × 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

Ca100%

Calcium (Ca × 7820)313,409.96 g/mol, 100%

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Elements in this formula

Calcium

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