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Colour

#FF5171

  • #FF5171
  • Red
  • Dark
  • Nearest: Crimson

#FF5171 is a red with RGB values 255, 81, 113 and HSL 349°, 100%, 66%. It is a dark colour, so black text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF5171#FF5171
HEX#FF5171
RGBrgb(255, 81, 113)
RGB (0–1)1, 0.3176, 0.4431
RGB percentages100%, 31.8%, 44.3%
HSLhsl(349, 100%, 65.9%)
HSV / HSBhsv(349, 68.2%, 100%)
CMYK0%, 68.2%, 55.7%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,732,529
CSS custom property--colour: #FF5171;

Brightness & contrast

Relative luminance0.28337WCAG 2.x, 0 is black and 1 is white
Perceived brightness157.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.67:1
Contrast with white3.15:1WCAG normal text: Fail
Contrast with black6.67:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#00AE8E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7D7A71no red cones; affects about 1% of men; ΔE 70.2 from the original
Deuteranopia#AA9E6Dno green cones; the most common form, about 1% of men; ΔE 71 from the original
Tritanopia#FF295Eno blue cones; rare, and affects men and women equally; ΔE 12.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.15:1WCAG large text: AA
Contrast with black, large text6.67:1WCAG large text: AAA

Named colours

Crimson · ΔE 19Indian red · ΔE 23.7Salmon · ΔE 24.9Light coral · ΔE 25.3Tomato · ΔE 27.8Firebrick · ΔE 29.6
Nearest named CSS colourCrimson (#DC143C)ΔE 18.97, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#51FFDF
Analogous#FF51C8, #FF8851
Triadic#71FF51, #5171FF
Split complementary#51FF88, #51C8FF
Tetradic#C8FF51, #51FFDF, #8851FF

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFEAEE
Lighter +20%#FFB7C4
Lighter +10%#FF849B
Darker −10%#FF1E47
Darker −20%#EA002B
Darker −30%#B70022
Darker −40%#840018
More saturated +25%#FF5171
Less saturated −25%#E9677F

Channel breakdown

R255
G81
B113
Red255 (100%)
Green81 (31.8%)
Blue113 (44.3%)
Hue348.97°
Saturation (HSL)100%
Lightness65.88%
Dominant channelRed
Hex per channelR FF · G 51 · B 71

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Every value on this page was computed from “ff5171” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.