Recognised as Colour

#C50008

#C50008
Red
Dark
Nearest: Firebrick

#C50008 is a red with RGB values 197, 0, 8 and HSL 358°, 100%, 39%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#C50008#C50008

HEX#C50008

RGBrgb(197, 0, 8)

RGB (0–1)0.7725, 0, 0.0314

RGB percentages77.3%, 0%, 3.1%

HSLhsl(357.6, 100%, 38.6%)

HSV / HSBhsv(357.6, 100%, 77.3%)

CMYK0%, 100%, 95.9%, 22.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,910,600

CSS custom property--colour: #C50008;

Brightness & contrast

Relative luminance0.11888WCAG 2.x, 0 is black and 1 is white

Perceived brightness107.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.22:1

Contrast with white6.22:1WCAG normal text: AA

Contrast with black3.38:1WCAG normal text: Fail

Greyscale equivalent#2A2A2A

Inverted#3AFFF7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#524801no red cones; affects about 1% of men; ΔE 71.6 from the original

Deuteranopia#7D6E00no green cones; the most common form, about 1% of men; ΔE 70.6 from the original

Tritanopia#DA000Bno blue cones; rare, and affects men and women equally; ΔE 7.9 from the original

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

Contrast with white, large text6.22:1WCAG large text: AAA

Contrast with black, large text3.38:1WCAG large text: AA

Named colours

Firebrick · ΔE 18.1 Crimson · ΔE 20.4 Dark red · ΔE 22.8 Orange red · ΔE 23.4 Tomato · ΔE 23.5 Red · ΔE 23.7

Nearest named CSS colourFirebrick (#B22222)ΔE 18.09, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00C5BD

Analogous#C5006A, #C55A00

Triadic#08C500, #0008C5

Split complementary#00C55A, #006AC5

Tetradic#6BC500, #00C5BD, #5B00C5

Tints, shades & saturation

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

Lighter +40%#FF9296

Lighter +30%#FF5F65

Lighter +20%#FF2C35

Lighter +10%#F8000A

Darker −10%#920006

Darker −20%#5F0004

Darker −30%#2C0002

Darker −40%#000000

More saturated +25%#C50008

Less saturated −25%#AC191F

Channel breakdown

R197

Red197 (77.3%)

Green0 (0%)

Blue8 (3.1%)

Hue357.56°

Saturation (HSL)100%

Lightness38.63%

Dominant channelRed

Hex per channelR C5 · G 00 · B 08

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

C50008 (chemical formula)

Formula
600,646.088 g/mol
50008 atoms

C50008 has a molar mass of 600,646.088 g/mol, made up of 50008 atoms across 1 element: 50008 × C.

Open this reading on its own page →

Molar mass

Molar mass600,646.088 g/mol

Total atoms per molecule50008

Distinct elements1

Mass of one molecule9.9739629 × 10^-19 g

Molecules per gram1.0026105 × 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

C100%

Carbon (C × 50008)600,646.088 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