Recognised as Colour

#CA7C39

#CA7C39
Orange
Dark
Nearest: Peru

#CA7C39 is a orange with RGB values 202, 124, 57 and HSL 28°, 58%, 51%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Peru.

Colour values

#CA7C39#CA7C39

HEX#CA7C39

RGBrgb(202, 124, 57)

RGB (0–1)0.7922, 0.4863, 0.2235

RGB percentages79.2%, 48.6%, 22.4%

HSLhsl(27.7, 57.8%, 50.8%)

HSV / HSBhsv(27.7, 71.8%, 79.2%)

CMYK0%, 38.6%, 71.8%, 20.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,270,073

CSS custom property--colour: #CA7C39;

Brightness & contrast

Relative luminance0.27267WCAG 2.x, 0 is black and 1 is white

Perceived brightness147 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.45:1

Contrast with white3.25:1WCAG normal text: Fail

Contrast with black6.45:1WCAG normal text: AA

Greyscale equivalent#888888

Inverted#3583C6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#938431no red cones; affects about 1% of men; ΔE 29.6 from the original

Deuteranopia#A69639no green cones; the most common form, about 1% of men; ΔE 30.2 from the original

Tritanopia#DC6B6Eno blue cones; rare, and affects men and women equally; ΔE 34.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.25:1WCAG large text: AA

Contrast with black, large text6.45:1WCAG large text: AAA

Named colours

Peru · ΔE 4.2 Sandy brown · ΔE 14.9 Chocolate · ΔE 15.5 Sienna · ΔE 20.3 Dark goldenrod · ΔE 20.9 Light salmon · ΔE 21.6

Nearest named CSS colourPeru (#CD853F)ΔE 4.16, a close match

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3987CA

Analogous#CA393E, #CAC439

Triadic#39CA7C, #7C39CA

Split complementary#39CAC4, #393FCA

Tetradic#3FCA39, #3987CA, #C439CA

Tints, shades & saturation

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

Lighter +40%#F5E6DA

Lighter +30%#EACCB2

Lighter +20%#E0B189

Lighter +10%#D59761

Darker −10%#A4632C

Darker −20%#7C4B21

Darker −30%#543316

Darker −40%#2B1A0C

More saturated +25%#E97A1A

Less saturated −25%#AB7E58

Channel breakdown

R202

G124

B57

Red202 (79.2%)

Green124 (48.6%)

Blue57 (22.4%)

Hue27.72°

Saturation (HSL)57.77%

Lightness50.78%

Dominant channelRed

Hex per channelR CA · G 7C · B 39

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ca7C39 (chemical formula)

Formula
748.975 g/mol
46 atoms

Ca7C39 has a molar mass of 748.975 g/mol, made up of 46 atoms across 2 elements: 7 × Ca, 39 × C.

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Molar mass

Molar mass748.975 g/mol

Total atoms per molecule46

Distinct elements2

Mass of one molecule1.2437022 × 10^-21 g

Molecules per gram8.0405097 × 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

Ca37.5%

C62.5%

Calcium (Ca × 7)280.546 g/mol, 37.457%

Carbon (C × 39)468.429 g/mol, 62.543%

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