Recognised as Colour

#FE3057

#FE3057
Red
Dark
Nearest: Crimson

#FE3057 is a red with RGB values 254, 48, 87 and HSL 349°, 99%, 59%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FE3057#FE3057

HEX#FE3057

RGBrgb(254, 48, 87)

RGB (0–1)0.9961, 0.1882, 0.3412

RGB percentages99.6%, 18.8%, 34.1%

HSLhsl(348.6, 99%, 59.2%)

HSV / HSBhsv(348.6, 81.1%, 99.6%)

CMYK0%, 81.1%, 65.7%, 0.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,658,519

CSS custom property--colour: #FE3057;

Brightness & contrast

Relative luminance0.23873WCAG 2.x, 0 is black and 1 is white

Perceived brightness146.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.77:1

Contrast with white3.64:1WCAG normal text: Fail

Contrast with black5.77:1WCAG normal text: AA

Greyscale equivalent#5F5F5F

Inverted#01CFA8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#706B57no red cones; affects about 1% of men; ΔE 80.1 from the original

Deuteranopia#A39551no green cones; the most common form, about 1% of men; ΔE 80.3 from the original

Tritanopia#FF0042no blue cones; rare, and affects men and women equally; ΔE 11.3 from the original

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

Contrast with white, large text3.64:1WCAG large text: AA

Contrast with black, large text5.77:1WCAG large text: AAA

Named colours

Crimson · ΔE 10.7 Tomato · ΔE 24.9 Firebrick · ΔE 27 Brown · ΔE 31.8 Indian red · ΔE 31.8 Salmon · ΔE 32.4

Nearest named CSS colourCrimson (#DC143C)ΔE 10.69, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#30FED7

Analogous#FE30BE, #FE7030

Triadic#57FE30, #3057FE

Split complementary#30FE70, #30BEFE

Tetradic#BEFE30, #30FED7, #7030FE

Tints, shades & saturation

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

Lighter +40%#FFFBFC

Lighter +30%#FFC8D3

Lighter +20%#FE96A9

Lighter +10%#FE6380

Darker −10%#FA0130

Darker −20%#C70126

Darker −30%#94011D

Darker −40%#620013

More saturated +25%#FF2F56

Less saturated −25%#E44A67

Channel breakdown

R254

G48

B87

Red254 (99.6%)

Green48 (18.8%)

Blue87 (34.1%)

Hue348.64°

Saturation (HSL)99.04%

Lightness59.22%

Dominant channelRed

Hex per channelR FE · G 30 · B 57

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Fe3057 (chemical formula)

Formula
170,718.165 g/mol
3057 atoms

Fe3057 has a molar mass of 170,718.165 g/mol, made up of 3057 atoms across 1 element: 3057 × Fe.

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Molar mass

Molar mass170,718.165 g/mol

Total atoms per molecule3057

Distinct elements1

Mass of one molecule2.8348418 × 10^-19 g

Molecules per gram3.5275337 × 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

Fe100%

Iron (Fe × 3057)170,718.165 g/mol, 100%

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Elements in this formula

Iron

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