Recognised as Colour

#CD1100

#CD1100
Red
Dark
Nearest: Orange red

#CD1100 is a red with RGB values 205, 17, 0 and HSL 5°, 100%, 40%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#CD1100#CD1100

HEX#CD1100

RGBrgb(205, 17, 0)

RGB (0–1)0.8039, 0.0667, 0

RGB percentages80.4%, 6.7%, 0%

HSLhsl(5, 100%, 40.2%)

HSV / HSBhsv(5, 100%, 80.4%)

CMYK0%, 91.7%, 100%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,439,232

CSS custom property--colour: #CD1100;

Brightness & contrast

Relative luminance0.1338WCAG 2.x, 0 is black and 1 is white

Perceived brightness112.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.71:1

Contrast with white5.71:1WCAG normal text: AA

Contrast with black3.68:1WCAG normal text: Fail

Greyscale equivalent#383838

Inverted#32EEFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#594D00no red cones; affects about 1% of men; ΔE 71.8 from the original

Deuteranopia#847400no green cones; the most common form, about 1% of men; ΔE 70.9 from the original

Tritanopia#E30014no blue cones; rare, and affects men and women equally; ΔE 8.6 from the original

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

Contrast with white, large text5.71:1WCAG large text: AAA

Contrast with black, large text3.68:1WCAG large text: AA

Named colours

Orange red · ΔE 18.5 Red · ΔE 19.8 Firebrick · ΔE 22.5 Tomato · ΔE 23.3 Crimson · ΔE 24.4 Dark red · ΔE 26.8

Nearest named CSS colourOrange red (#FF4500)ΔE 18.52, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00BCCD

Analogous#CD0056, #CD7800

Triadic#00CD11, #1100CD

Split complementary#00CD78, #0055CD

Tetradic#55CD00, #00BCCD, #7800CD

Tints, shades & saturation

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

Lighter +40%#FFA29A

Lighter +30%#FF7467

Lighter +20%#FF4534

Lighter +10%#FF1601

Darker −10%#9A0D00

Darker −20%#670900

Darker −30%#340400

Darker −40%#010000

More saturated +25%#CD1100

Less saturated −25%#B3261A

Channel breakdown

R205

G17

Red205 (80.4%)

Green17 (6.7%)

Blue0 (0%)

Hue4.98°

Saturation (HSL)100%

Lightness40.2%

Dominant channelRed

Hex per channelR CD · G 11 · B 00

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Cd1100 (chemical formula)

Formula
123,651 g/mol
1100 atoms

Cd1100 has a molar mass of 123,651 g/mol, made up of 1100 atoms across 1 element: 1100 × Cd.

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Molar mass

Molar mass123,651 g/mol

Total atoms per molecule1100

Distinct elements1

Mass of one molecule2.0532732 × 10^-19 g

Molecules per gram4.8702726 × 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

Cd100%

Cadmium (Cd × 1100)123,651 g/mol, 100%

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Elements in this formula

Cadmium

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