Recognised as Colour

#C61657

#C61657
Red
Dark
Nearest: Crimson

#C61657 is a red with RGB values 198, 22, 87 and HSL 338°, 80%, 43%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#C61657#C61657

HEX#C61657

RGBrgb(198, 22, 87)

RGB (0–1)0.7765, 0.0863, 0.3412

RGB percentages77.6%, 8.6%, 34.1%

HSLhsl(337.8, 80%, 43.1%)

HSV / HSBhsv(337.8, 88.9%, 77.6%)

CMYK0%, 88.9%, 56.1%, 22.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,981,847

CSS custom property--colour: #C61657;

Brightness & contrast

Relative luminance0.13268WCAG 2.x, 0 is black and 1 is white

Perceived brightness113.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.75:1

Contrast with white5.75:1WCAG normal text: AA

Contrast with black3.65:1WCAG normal text: Fail

Greyscale equivalent#404040

Inverted#39E9A8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4D5058no red cones; affects about 1% of men; ΔE 68.5 from the original

Deuteranopia#797253no green cones; the most common form, about 1% of men; ΔE 69.6 from the original

Tritanopia#D90036no blue cones; rare, and affects men and women equally; ΔE 25.1 from the original

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

Contrast with white, large text5.75:1WCAG large text: AAA

Contrast with black, large text3.65:1WCAG large text: AA

Named colours

Crimson · ΔE 23.3 Brown · ΔE 26.4 Indian red · ΔE 26.5 Medium violet red · ΔE 26.6 Deep pink · ΔE 27.7 Firebrick · ΔE 28.9

Nearest named CSS colourCrimson (#DC143C)ΔE 23.28, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#16C685

Analogous#C616AF, #C62D16

Triadic#57C616, #1657C6

Split complementary#16C62D, #16AFC6

Tetradic#AFC616, #16C685, #2D16C6

Tints, shades & saturation

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

Lighter +40%#F6B2CB

Lighter +30%#F184AC

Lighter +20%#EC568D

Lighter +10%#E7286F

Darker −10%#981143

Darker −20%#6A0C2F

Darker −30%#3C071A

Darker −40%#0E0206

More saturated +25%#DC0051

Less saturated −25%#AB325E

Channel breakdown

R198

G22

B87

Red198 (77.6%)

Green22 (8.6%)

Blue87 (34.1%)

Hue337.84°

Saturation (HSL)80%

Lightness43.14%

Dominant channelRed

Hex per channelR C6 · G 16 · B 57

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C61657 (chemical formula)

Formula
740,562.227 g/mol
61657 atoms

C61657 has a molar mass of 740,562.227 g/mol, made up of 61657 atoms across 1 element: 61657 × C.

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Molar mass

Molar mass740,562.227 g/mol

Total atoms per molecule61657

Distinct elements1

Mass of one molecule1.2297325 × 10^-18 g

Molecules per gram8.1318497 × 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 × 61657)740,562.227 g/mol, 100%

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Elements in this formula

Carbon

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