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Recognised as Colour

#FB313E

  • #FB313E
  • Red
  • Dark
  • Nearest: Crimson

#FB313E is a red with RGB values 251, 49, 62 and HSL 356°, 96%, 59%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FB313E#FB313E
HEX#FB313E
RGBrgb(251, 49, 62)
RGB (0–1)0.9843, 0.1922, 0.2431
RGB percentages98.4%, 19.2%, 24.3%
HSLhsl(356.1, 96.2%, 58.8%)
HSV / HSBhsv(356.1, 80.5%, 98.4%)
CMYK0%, 80.5%, 75.3%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,462,142
CSS custom property--colour: #FB313E;

Brightness & contrast

Relative luminance0.23054WCAG 2.x, 0 is black and 1 is white
Perceived brightness143.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.61:1
Contrast with white3.74:1WCAG normal text: Fail
Contrast with black5.61:1WCAG normal text: AA
Greyscale equivalent#5D5D5D
Inverted#04CEC1

Colour vision & accessibility

Protanopia#72683Cno red cones; affects about 1% of men; ΔE 78.9 from the original
Deuteranopia#A49336no green cones; the most common form, about 1% of men; ΔE 78.7 from the original
Tritanopia#FF0039no blue cones; rare, and affects men and women equally; ΔE 7.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.74:1WCAG large text: AA
Contrast with black, large text5.61:1WCAG large text: AAA

Named colours

Nearest named CSS colourCrimson (#DC143C)ΔE 12.86, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#31FBEE
Analogous#FB31A3, #FB8931
Triadic#3EFB31, #313EFB
Split complementary#31FB89, #31A3FB
Tetradic#A3FB31, #31FBEE, #8931FB

Tints, shades & saturation

Lighter +40%#FFF9F9
Lighter +30%#FEC7CB
Lighter +20%#FD959C
Lighter +10%#FC636D
Darker −10%#F40514
Darker −20%#C20410
Darker −30%#90030C
Darker −40%#5E0208
More saturated +25%#FF2D3B
Less saturated −25%#E14B55

Channel breakdown

R251
G49
B62
Red251 (98.4%)
Green49 (19.2%)
Blue62 (24.3%)
Hue356.14°
Saturation (HSL)96.19%
Lightness58.82%
Dominant channelRed
Hex per channelR FB · G 31 · B 3E

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Every value on this page was computed from “fb313e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.