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Recognised as Colour

#FE428B

  • #FE428B
  • Red
  • Dark
  • Nearest: Deep pink

#FE428B is a red with RGB values 254, 66, 139 and HSL 337°, 99%, 63%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Deep pink.

Colour values

#FE428B#FE428B
HEX#FE428B
RGBrgb(254, 66, 139)
RGB (0–1)0.9961, 0.2588, 0.5451
RGB percentages99.6%, 25.9%, 54.5%
HSLhsl(336.7, 98.9%, 62.7%)
HSV / HSBhsv(336.7, 74%, 99.6%)
CMYK0%, 74%, 45.3%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,663,179
CSS custom property--colour: #FE428B;

Brightness & contrast

Relative luminance0.26831WCAG 2.x, 0 is black and 1 is white
Perceived brightness155.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.37:1
Contrast with white3.3:1WCAG normal text: Fail
Contrast with black6.37:1WCAG normal text: AA
Greyscale equivalent#6F6F6F
Inverted#01BD74

Colour vision & accessibility

Protanopia#6E768Dno red cones; affects about 1% of men; ΔE 74.4 from the original
Deuteranopia#A09B87no green cones; the most common form, about 1% of men; ΔE 76.5 from the original
Tritanopia#FF1B61no blue cones; rare, and affects men and women equally; ΔE 20.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.3:1WCAG large text: AA
Contrast with black, large text6.37:1WCAG large text: AAA

Named colours

Nearest named CSS colourDeep pink (#FF1493)ΔE 13.92, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#42FEB5
Analogous#FE42E9, #FE5742
Triadic#8BFE42, #428BFE
Split complementary#42FE57, #42E9FE
Tetradic#E9FE42, #42FEB5, #5742FE

Tints, shades & saturation

Lighter +40%#FFFFFF
Lighter +30%#FFDAE8
Lighter +20%#FFA7C9
Lighter +10%#FE75AA
Darker −10%#FE0F6C
Darker −20%#D90155
Darker −30%#A60141
Darker −40%#73012D
More saturated +25%#FF418B
Less saturated −25%#E65A90

Channel breakdown

R254
G66
B139
Red254 (99.6%)
Green66 (25.9%)
Blue139 (54.5%)
Hue336.7°
Saturation (HSL)98.95%
Lightness62.75%
Dominant channelRed
Hex per channelR FE · G 42 · B 8B

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Also reads as

Fe428B (chemical formula)

  • Formula
  • 23,912.47 g/mol
  • 429 atoms

Fe428B has a molar mass of 23,912.47 g/mol, made up of 429 atoms across 2 elements: 428 × Fe, 1 × B.

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Molar mass

Molar mass23,912.47 g/mol
Total atoms per molecule429
Distinct elements2
Mass of one molecule3.9707591 × 10^-20 g
Molecules per gram2.5184102 × 10^19

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

Fe100%
B0%

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Every value on this page was computed from “fe428b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.