Recognised as Colour

#C90038

#C90038
Red
Dark
Nearest: Crimson

#C90038 is a red with RGB values 201, 0, 56 and HSL 343°, 100%, 39%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#C90038#C90038

HEX#C90038

RGBrgb(201, 0, 56)

RGB (0–1)0.7882, 0, 0.2196

RGB percentages78.8%, 0%, 22%

HSLhsl(343.3, 100%, 39.4%)

HSV / HSBhsv(343.3, 100%, 78.8%)

CMYK0%, 100%, 72.1%, 21.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,172,792

CSS custom property--colour: #C90038;

Brightness & contrast

Relative luminance0.12703WCAG 2.x, 0 is black and 1 is white

Perceived brightness111.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.93:1

Contrast with white5.93:1WCAG normal text: AA

Contrast with black3.54:1WCAG normal text: Fail

Greyscale equivalent#2F2F2F

Inverted#36FFC7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#504B38no red cones; affects about 1% of men; ΔE 72.5 from the original

Deuteranopia#7D7132no green cones; the most common form, about 1% of men; ΔE 72.5 from the original

Tritanopia#DD0020no blue cones; rare, and affects men and women equally; ΔE 19.9 from the original

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

Contrast with white, large text5.93:1WCAG large text: AAA

Contrast with black, large text3.54:1WCAG large text: AA

Named colours

Crimson · ΔE 6.9 Firebrick · ΔE 15.1 Brown · ΔE 19.1 Dark red · ΔE 25.2 Indian red · ΔE 26.8 Maroon · ΔE 27.6

Nearest named CSS colourCrimson (#DC143C)ΔE 6.86, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00C991

Analogous#C9009C, #C92C00

Triadic#38C900, #0038C9

Split complementary#00C92C, #009CC9

Tetradic#9DC900, #00C991, #2D00C9

Tints, shades & saturation

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

Lighter +40%#FF96B3

Lighter +30%#FF638E

Lighter +20%#FF306A

Lighter +10%#FC0046

Darker −10%#96002A

Darker −20%#63001C

Darker −30%#30000D

Darker −40%#000000

More saturated +25%#C90038

Less saturated −25%#B01943

Channel breakdown

R201

B56

Red201 (78.8%)

Green0 (0%)

Blue56 (22%)

Hue343.28°

Saturation (HSL)100%

Lightness39.41%

Dominant channelRed

Hex per channelR C9 · G 00 · B 38

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

C90038 (chemical formula)

Formula
1,081,446.418 g/mol
90038 atoms

C90038 has a molar mass of 1,081,446.418 g/mol, made up of 90038 atoms across 1 element: 90038 × C.

Open this reading on its own page →

Molar mass

Molar mass1,081,446.418 g/mol

Total atoms per molecule90038

Distinct elements1

Mass of one molecule1.795784 × 10^-18 g

Molecules per gram5.5685984 × 10^17

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

C100%

Carbon (C × 90038)1,081,446.418 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

Carbon

Nerdulate something else

Nothing in mind? Surprise me · today’s page