Recognised as Colour

#CD260B

#CD260B
Red
Dark
Nearest: Firebrick

#CD260B is a red with RGB values 205, 38, 11 and HSL 8°, 90%, 42%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#CD260B#CD260B

HEX#CD260B

RGBrgb(205, 38, 11)

RGB (0–1)0.8039, 0.149, 0.0431

RGB percentages80.4%, 14.9%, 4.3%

HSLhsl(8.4, 89.8%, 42.4%)

HSV / HSBhsv(8.4, 94.6%, 80.4%)

CMYK0%, 81.5%, 94.6%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,444,619

CSS custom property--colour: #CD260B;

Brightness & contrast

Relative luminance0.1439WCAG 2.x, 0 is black and 1 is white

Perceived brightness115.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.42:1

Contrast with white5.42:1WCAG normal text: AA

Contrast with black3.88:1WCAG normal text: Fail

Greyscale equivalent#484848

Inverted#32D9F4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5E5301no red cones; affects about 1% of men; ΔE 67.9 from the original

Deuteranopia#867700no green cones; the most common form, about 1% of men; ΔE 67.6 from the original

Tritanopia#E30024no blue cones; rare, and affects men and women equally; ΔE 13.5 from the original

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

Contrast with white, large text5.42:1WCAG large text: AAA

Contrast with black, large text3.88:1WCAG large text: AA

Named colours

Firebrick · ΔE 18.9 Tomato · ΔE 19.7 Orange red · ΔE 20 Crimson · ΔE 22.8 Red · ΔE 23.4 Dark red · ΔE 24.1

Nearest named CSS colourFirebrick (#B22222)ΔE 18.92, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0BB2CD

Analogous#CD0B51, #CD870B

Triadic#0BCD26, #260BCD

Split complementary#0BCD87, #0B51CD

Tetradic#51CD0B, #0BB2CD, #870BCD

Tints, shades & saturation

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

Lighter +40%#FAB5AA

Lighter +30%#F88B79

Lighter +20%#F56149

Lighter +10%#F33718

Darker −10%#9D1D08

Darker −20%#6C1406

Darker −30%#3C0B03

Darker −40%#0B0201

More saturated +25%#D81E00

Less saturated −25%#B23926

Channel breakdown

R205

G38

B11

Red205 (80.4%)

Green38 (14.9%)

Blue11 (4.3%)

Hue8.35°

Saturation (HSL)89.81%

Lightness42.35%

Dominant channelRed

Hex per channelR CD · G 26 · B 0B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Cd260B (chemical formula)

Formula
29,237.41 g/mol
261 atoms

Cd260B has a molar mass of 29,237.41 g/mol, made up of 261 atoms across 2 elements: 260 × Cd, 1 × B.

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Molar mass

Molar mass29,237.41 g/mol

Total atoms per molecule261

Distinct elements2

Mass of one molecule4.8549862 × 10^-20 g

Molecules per gram2.0597381 × 10^19

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%

B0%

Cadmium (Cd × 260)29,226.6 g/mol, 99.963%

Boron (B)10.81 g/mol, 0.037%

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