Recognised as Colour

#CA5503

#CA5503
Orange
Dark
Nearest: Chocolate

#CA5503 is a orange with RGB values 202, 85, 3 and HSL 25°, 97%, 40%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Chocolate.

Colour values

#CA5503#CA5503

HEX#CA5503

RGBrgb(202, 85, 3)

RGB (0–1)0.7922, 0.3333, 0.0118

RGB percentages79.2%, 33.3%, 1.2%

HSLhsl(24.7, 97.1%, 40.2%)

HSV / HSBhsv(24.7, 98.5%, 79.2%)

CMYK0%, 57.9%, 98.5%, 20.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,260,035

CSS custom property--colour: #CA5503;

Brightness & contrast

Relative luminance0.1906WCAG 2.x, 0 is black and 1 is white

Perceived brightness128.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.81:1

Contrast with white4.36:1WCAG normal text: Fail

Contrast with black4.81:1WCAG normal text: AA

Greyscale equivalent#686868

Inverted#35AAFC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#776800no red cones; affects about 1% of men; ΔE 48.6 from the original

Deuteranopia#948300no green cones; the most common form, about 1% of men; ΔE 48.8 from the original

Tritanopia#DF3749no blue cones; rare, and affects men and women equally; ΔE 36.2 from the original

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

Contrast with white, large text4.36:1WCAG large text: AA

Contrast with black, large text4.81:1WCAG large text: AAA

Named colours

Chocolate · ΔE 8.8 Coral · ΔE 20.7 Tomato · ΔE 22.7 Dark orange · ΔE 25.3 Orange red · ΔE 26.9 Peru · ΔE 27.3

Nearest named CSS colourChocolate (#D2691E)ΔE 8.77, clearly different but related

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0378CA

Analogous#CA0315, #CAB803

Triadic#03CA55, #5503CA

Split complementary#03CAB8, #0315CA

Tetradic#15CA03, #0378CA, #B803CA

Tints, shades & saturation

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

Lighter +40%#FEC49B

Lighter +30%#FDA669

Lighter +20%#FC8837

Lighter +10%#FB6A05

Darker −10%#984002

Darker −20%#652B02

Darker −30%#331601

Darker −40%#010000

More saturated +25%#CD5400

Less saturated −25%#B05A1D

Channel breakdown

R202

G85

Red202 (79.2%)

Green85 (33.3%)

Blue3 (1.2%)

Hue24.72°

Saturation (HSL)97.07%

Lightness40.2%

Dominant channelRed

Hex per channelR CA · G 55 · B 03

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

Ca5503 (chemical formula)

Formula
220,549.234 g/mol
5503 atoms

Ca5503 has a molar mass of 220,549.234 g/mol, made up of 5503 atoms across 1 element: 5503 × Ca.

Open this reading on its own page →

Molar mass

Molar mass220,549.234 g/mol

Total atoms per molecule5503

Distinct elements1

Mass of one molecule3.6623062 × 10^-19 g

Molecules per gram2.7305199 × 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 × 5503)220,549.234 g/mol, 100%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Calcium

Nerdulate something else

Nothing in mind? Surprise me · today’s page