Recognised as Colour

#FF178B

#FF178B
Red
Dark
Nearest: Deep pink

#FF178B is a red with RGB values 255, 23, 139 and HSL 330°, 100%, 55%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Deep pink.

Colour values

#FF178B#FF178B

HEX#FF178B

RGBrgb(255, 23, 139)

RGB (0–1)1, 0.0902, 0.5451

RGB percentages100%, 9%, 54.5%

HSLhsl(330, 100%, 54.5%)

HSV / HSBhsv(330, 91%, 100%)

CMYK0%, 91%, 45.5%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,717,707

CSS custom property--colour: #FF178B;

Brightness & contrast

Relative luminance0.23737WCAG 2.x, 0 is black and 1 is white

Perceived brightness148.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.75:1

Contrast with white3.65:1WCAG normal text: Fail

Contrast with black5.75:1WCAG normal text: AA

Greyscale equivalent#515151

Inverted#00E874

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5D6B8Dno red cones; affects about 1% of men; ΔE 83.1 from the original

Deuteranopia#989486no green cones; the most common form, about 1% of men; ΔE 85.3 from the original

Tritanopia#FF0054no blue cones; rare, and affects men and women equally; ΔE 30.5 from the original

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

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

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

Named colours

Deep pink · ΔE 4.7 Medium violet red · ΔE 21.8 Hot pink · ΔE 23.6 Crimson · ΔE 38 Pale violetred · ΔE 38.4 Orchid · ΔE 44.2

Nearest named CSS colourDeep pink (#FF1493)ΔE 4.67, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#17FF8B

Analogous#FF17FF, #FF1717

Triadic#8BFF17, #178BFF

Split complementary#17FF17, #17FFFF

Tetradic#FFFF17, #17FF8B, #1717FF

Tints, shades & saturation

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

Lighter +40%#FFE3F1

Lighter +30%#FFB0D7

Lighter +20%#FF7DBE

Lighter +10%#FF4AA4

Darker −10%#E30072

Darker −20%#B00058

Darker −30%#7D003F

Darker −40%#4A0025

More saturated +25%#FF178B

Less saturated −25%#E2348B

Channel breakdown

R255

G23

B139

Red255 (100%)

Green23 (9%)

Blue139 (54.5%)

Hue330°

Saturation (HSL)100%

Lightness54.51%

Dominant channelRed

Hex per channelR FF · G 17 · B 8B

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

FF178B (chemical formula)

Formula
3,411.452 g/mol
180 atoms

FF178B has a molar mass of 3,411.452 g/mol, made up of 180 atoms across 2 elements: 179 × F, 1 × B.

Open this reading on its own page →

Molar mass

Molar mass3,411.452 g/mol

Total atoms per molecule180

Distinct elements2

Mass of one molecule5.6648493 × 10^-21 g

Molecules per gram1.765272 × 10^20

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

F99.7%

B0.3%

Fluorine (F × 179)3,400.642 g/mol, 99.683%

Boron (B)10.81 g/mol, 0.317%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Nerdulate something else

Nothing in mind? Surprise me · today’s page