Recognised as Colour

#F91B60

#F91B60
Red
Dark
Nearest: Crimson

#F91B60 is a red with RGB values 249, 27, 96 and HSL 341°, 95%, 54%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F91B60#F91B60

HEX#F91B60

RGBrgb(249, 27, 96)

RGB (0–1)0.9765, 0.1059, 0.3765

RGB percentages97.6%, 10.6%, 37.6%

HSLhsl(341.4, 94.9%, 54.1%)

HSV / HSBhsv(341.4, 89.2%, 97.6%)

CMYK0%, 89.2%, 61.4%, 2.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,325,472

CSS custom property--colour: #F91B60;

Brightness & contrast

Relative luminance0.21768WCAG 2.x, 0 is black and 1 is white

Perceived brightness141.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.35:1

Contrast with white3.92:1WCAG normal text: Fail

Contrast with black5.35:1WCAG normal text: AA

Greyscale equivalent#4F4F4F

Inverted#06E49F

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#666461no red cones; affects about 1% of men; ΔE 81.8 from the original

Deuteranopia#9C905Ano green cones; the most common form, about 1% of men; ΔE 82.9 from the original

Tritanopia#FF003Eno blue cones; rare, and affects men and women equally; ΔE 20.3 from the original

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

Contrast with white, large text3.92:1WCAG large text: AA

Contrast with black, large text5.35:1WCAG large text: AAA

Named colours

Crimson · ΔE 15.8 Deep pink · ΔE 28 Firebrick · ΔE 31.5 Tomato · ΔE 33.5 Indian red · ΔE 33.9 Brown · ΔE 34.5

Nearest named CSS colourCrimson (#DC143C)ΔE 15.8, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1BF9B4

Analogous#F91BCF, #F9451B

Triadic#60F91B, #1B60F9

Split complementary#1BF945, #1BCFF9

Tetradic#CFF91B, #1BF9B4, #451BF9

Tints, shades & saturation

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

Lighter +40%#FEE2EB

Lighter +30%#FDB0C8

Lighter +20%#FC7EA5

Lighter +10%#FA4D83

Darker −10%#DB0648

Darker −20%#AA0438

Darker −30%#780327

Darker −40%#460217

More saturated +25%#FF155E

Less saturated −25%#DC386B

Channel breakdown

R249

G27

B96

Red249 (97.6%)

Green27 (10.6%)

Blue96 (37.6%)

Hue341.35°

Saturation (HSL)94.87%

Lightness54.12%

Dominant channelRed

Hex per channelR F9 · G 1B · B 60

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F91B60 (chemical formula)

Formula
2,377.418 g/mol
151 atoms

F91B60 has a molar mass of 2,377.418 g/mol, made up of 151 atoms across 2 elements: 91 × F, 60 × B.

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Molar mass

Molar mass2,377.418 g/mol

Total atoms per molecule151

Distinct elements2

Mass of one molecule3.9477955 × 10^-21 g

Molecules per gram2.5330593 × 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

F72.7%

B27.3%

Fluorine (F × 91)1,728.818 g/mol, 72.718%

Boron (B × 60)648.6 g/mol, 27.282%

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Elements in this formula

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