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Recognised as Colour

#FB243D

  • #FB243D
  • Red
  • Dark
  • Nearest: Crimson

#FB243D is a red with RGB values 251, 36, 61 and HSL 353°, 96%, 56%. 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

#FB243D#FB243D
HEX#FB243D
RGBrgb(251, 36, 61)
RGB (0–1)0.9843, 0.1412, 0.2392
RGB percentages98.4%, 14.1%, 23.9%
HSLhsl(353, 96.4%, 56.3%)
HSV / HSBhsv(353, 85.7%, 98.4%)
CMYK0%, 85.7%, 75.7%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,458,813
CSS custom property--colour: #FB243D;

Brightness & contrast

Relative luminance0.22108WCAG 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 5.42:1
Contrast with white3.87:1WCAG normal text: Fail
Contrast with black5.42:1WCAG normal text: AA
Greyscale equivalent#545454
Inverted#04DBC2

Colour vision & accessibility

Protanopia#6E653Cno red cones; affects about 1% of men; ΔE 81.9 from the original
Deuteranopia#A29134no green cones; the most common form, about 1% of men; ΔE 81.5 from the original
Tritanopia#FF0031no blue cones; rare, and affects men and women equally; ΔE 7.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.87:1WCAG large text: AA
Contrast with black, large text5.42:1WCAG large text: AAA

Named colours

Nearest named CSS colourCrimson (#DC143C)ΔE 12.74, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#24FBE2
Analogous#FB24A9, #FB7624
Triadic#3DFB24, #243DFB
Split complementary#24FB76, #24A9FB
Tetradic#A8FB24, #24FBE2, #7624FB

Tints, shades & saturation

Lighter +40%#FFECEE
Lighter +30%#FEBAC2
Lighter +20%#FD8896
Lighter +10%#FC5669
Darker −10%#E8041F
Darker −20%#B60318
Darker −30%#840211
Darker −40%#52010B
More saturated +25%#FF203A
Less saturated −25%#DF4052

Channel breakdown

R251
G36
B61
Red251 (98.4%)
Green36 (14.1%)
Blue61 (23.9%)
Hue353.02°
Saturation (HSL)96.41%
Lightness56.27%
Dominant channelRed
Hex per channelR FB · G 24 · B 3D

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Every value on this page was computed from “fb243d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.