Recognised as Colour

#FF5765

#FF5765
Red
Dark
Nearest: Crimson

#FF5765 is a red with RGB values 255, 87, 101 and HSL 355°, 100%, 67%. It is a dark colour, so black text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF5765#FF5765

HEX#FF5765

RGBrgb(255, 87, 101)

RGB (0–1)1, 0.3412, 0.3961

RGB percentages100%, 34.1%, 39.6%

HSLhsl(355, 100%, 67.1%)

HSV / HSBhsv(355, 65.9%, 100%)

CMYK0%, 65.9%, 60.4%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,734,053

CSS custom property--colour: #FF5765;

Brightness & contrast

Relative luminance0.29016WCAG 2.x, 0 is black and 1 is white

Perceived brightness158.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.8:1

Contrast with white3.09:1WCAG normal text: Fail

Contrast with black6.8:1WCAG normal text: AA

Greyscale equivalent#7C7C7C

Inverted#00A89A

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#837C64no red cones; affects about 1% of men; ΔE 67.9 from the original

Deuteranopia#ADA061no green cones; the most common form, about 1% of men; ΔE 69.1 from the original

Tritanopia#FF305Dno blue cones; rare, and affects men and women equally; ΔE 12.7 from the original

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

Contrast with white, large text3.09:1WCAG large text: AA

Contrast with black, large text6.8:1WCAG large text: AAA

Named colours

Crimson · ΔE 16.2 Tomato · ΔE 19.5 Salmon · ΔE 20.2 Indian red · ΔE 21.7 Light coral · ΔE 23.8 Firebrick · ΔE 25.1

Nearest named CSS colourCrimson (#DC143C)ΔE 16.2, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#57FFF1

Analogous#FF57B9, #FF9D57

Triadic#65FF57, #5765FF

Split complementary#57FF9D, #57B9FF

Tetradic#B9FF57, #57FFF1, #9D57FF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFF0F1

Lighter +20%#FFBDC3

Lighter +10%#FF8A94

Darker −10%#FF2436

Darker −20%#F00014

Darker −30%#BD0010

Darker −40%#8A000B

More saturated +25%#FF5765

Less saturated −25%#EA6C76

Channel breakdown

R255

G87

B101

Red255 (100%)

Green87 (34.1%)

Blue101 (39.6%)

Hue355°

Saturation (HSL)100%

Lightness67.06%

Dominant channelRed

Hex per channelR FF · G 57 · B 65

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

FF5765 (chemical formula)

Formula
109,542.468 g/mol
5766 atoms

FF5765 has a molar mass of 109,542.468 g/mol, made up of 5766 atoms across 1 element: 5766 × F.

Open this reading on its own page →

Molar mass

Molar mass109,542.468 g/mol

Total atoms per molecule5766

Distinct elements1

Mass of one molecule1.8189955 × 10^-19 g

Molecules per gram5.4975398 × 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

F100%

Fluorine (F × 5766)109,542.468 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

Fluorine

Nerdulate something else

Nothing in mind? Surprise me · today’s page