Recognised as Colour

#CE3037

#CE3037
Red
Dark
Nearest: Firebrick

#CE3037 is a red with RGB values 206, 48, 55 and HSL 357°, 62%, 50%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#CE3037#CE3037

HEX#CE3037

RGBrgb(206, 48, 55)

RGB (0–1)0.8078, 0.1882, 0.2157

RGB percentages80.8%, 18.8%, 21.6%

HSLhsl(357.3, 62.2%, 49.8%)

HSV / HSBhsv(357.3, 76.7%, 80.8%)

CMYK0%, 76.7%, 73.3%, 19.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,512,759

CSS custom property--colour: #CE3037;

Brightness & contrast

Relative luminance0.15512WCAG 2.x, 0 is black and 1 is white

Perceived brightness119.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.12:1

Contrast with white5.12:1WCAG normal text: AA

Contrast with black4.1:1WCAG normal text: Fail

Greyscale equivalent#525252

Inverted#31CFC8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#605836no red cones; affects about 1% of men; ΔE 65.3 from the original

Deuteranopia#877A31no green cones; the most common form, about 1% of men; ΔE 65.7 from the original

Tritanopia#E30034no blue cones; rare, and affects men and women equally; ΔE 14.2 from the original

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

Contrast with white, large text5.12:1WCAG large text: AAA

Contrast with black, large text4.1:1WCAG large text: AA

Named colours

Firebrick · ΔE 9.1 Crimson · ΔE 10.2 Brown · ΔE 14.9 Tomato · ΔE 19.8 Dark red · ΔE 21.7 Indian red · ΔE 21.7

Nearest named CSS colourFirebrick (#B22222)ΔE 9.12, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#30CEC7

Analogous#CE3086, #CE7830

Triadic#37CE30, #3037CE

Split complementary#30CE78, #3086CE

Tetradic#86CE30, #30CEC7, #7830CE

Tints, shades & saturation

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

Lighter +40%#F5D5D6

Lighter +30%#ECABAE

Lighter +20%#E28286

Lighter +10%#D8595E

Darker −10%#A5262C

Darker −20%#7B1D21

Darker −30%#521316

Darker −40%#29090B

More saturated +25%#EE101A

Less saturated −25%#AE5054

Channel breakdown

R206

G48

B55

Red206 (80.8%)

Green48 (18.8%)

Blue55 (21.6%)

Hue357.34°

Saturation (HSL)62.2%

Lightness49.8%

Dominant channelRed

Hex per channelR CE · G 30 · B 37

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ce3037 (chemical formula)

Formula
425,544.44 g/mol
3037 atoms

Ce3037 has a molar mass of 425,544.44 g/mol, made up of 3037 atoms across 1 element: 3037 × Ce.

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Molar mass

Molar mass425,544.44 g/mol

Total atoms per molecule3037

Distinct elements1

Mass of one molecule7.0663317 × 10^-19 g

Molecules per gram1.4151614 × 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

Ce100%

Cerium (Ce × 3037)425,544.44 g/mol, 100%

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Elements in this formula

Cerium

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