Recognised as Colour

#FF257B

#FF257B
Red
Dark
Nearest: Deep pink

#FF257B is a red with RGB values 255, 37, 123 and HSL 336°, 100%, 57%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Deep pink.

Colour values

#FF257B#FF257B

HEX#FF257B

RGBrgb(255, 37, 123)

RGB (0–1)1, 0.1451, 0.4824

RGB percentages100%, 14.5%, 48.2%

HSLhsl(336.3, 100%, 57.3%)

HSV / HSBhsv(336.3, 85.5%, 100%)

CMYK0%, 85.5%, 51.8%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,721,275

CSS custom property--colour: #FF257B;

Brightness & contrast

Relative luminance0.24013WCAG 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 5.8:1

Contrast with white3.62:1WCAG normal text: Fail

Contrast with black5.8:1WCAG normal text: AA

Greyscale equivalent#5A5A5A

Inverted#00DA84

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#656C7Dno red cones; affects about 1% of men; ΔE 82 from the original

Deuteranopia#9D9576no green cones; the most common form, about 1% of men; ΔE 83.1 from the original

Tritanopia#FF004Fno blue cones; rare, and affects men and women equally; ΔE 23.5 from the original

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

Contrast with white, large text3.62:1WCAG large text: AA

Contrast with black, large text5.8:1WCAG large text: AAA

Named colours

Deep pink · ΔE 15.1 Hot pink · ΔE 26.9 Crimson · ΔE 28 Medium violet red · ΔE 28.1 Pale violetred · ΔE 36 Indian red · ΔE 38

Nearest named CSS colourDeep pink (#FF1493)ΔE 15.13, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#25FFA9

Analogous#FF25E8, #FF3C25

Triadic#7BFF25, #257BFF

Split complementary#25FF3C, #25E8FF

Tetradic#E8FF25, #25FFA9, #3C25FF

Tints, shades & saturation

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

Lighter +40%#FFF1F7

Lighter +30%#FFBED8

Lighter +20%#FF8BB9

Lighter +10%#FF589A

Darker −10%#F1005F

Darker −20%#BE004B

Darker −30%#8B0037

Darker −40%#580023

More saturated +25%#FF257B

Less saturated −25%#E44081

Channel breakdown

R255

G37

B123

Red255 (100%)

Green37 (14.5%)

Blue123 (48.2%)

Hue336.33°

Saturation (HSL)100%

Lightness57.25%

Dominant channelRed

Hex per channelR FF · G 25 · B 7B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF257B (chemical formula)

Formula
4,912.294 g/mol
259 atoms

FF257B has a molar mass of 4,912.294 g/mol, made up of 259 atoms across 2 elements: 258 × F, 1 × B.

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Molar mass

Molar mass4,912.294 g/mol

Total atoms per molecule259

Distinct elements2

Mass of one molecule8.1570561 × 10^-21 g

Molecules per gram1.2259325 × 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

F99.8%

B0.2%

Fluorine (F × 258)4,901.484 g/mol, 99.78%

Boron (B)10.81 g/mol, 0.22%

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Elements in this formula

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