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Recognised as Colour

#F10A2C

  • #F10A2C
  • Red
  • Dark
  • Nearest: Crimson

#F10A2C is a red with RGB values 241, 10, 44 and HSL 351°, 92%, 49%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F10A2C#F10A2C
HEX#F10A2C
RGBrgb(241, 10, 44)
RGB (0–1)0.9451, 0.0392, 0.1725
RGB percentages94.5%, 3.9%, 17.3%
HSLhsl(351.2, 92%, 49.2%)
HSV / HSBhsv(351.2, 95.9%, 94.5%)
CMYK0%, 95.9%, 81.7%, 5.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,796,780
CSS custom property--colour: #F10A2C;

Brightness & contrast

Relative luminance0.191WCAG 2.x, 0 is black and 1 is white
Perceived brightness132.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.82:1
Contrast with white4.36:1WCAG normal text: Fail
Contrast with black4.82:1WCAG normal text: AA
Greyscale equivalent#3E3E3E
Inverted#0EF5D3

Colour vision & accessibility

Protanopia#665B2Ano red cones; affects about 1% of men; ΔE 82.2 from the original
Deuteranopia#998920no green cones; the most common form, about 1% of men; ΔE 82.5 from the original
Tritanopia#FF001Fno blue cones; rare, and affects men and women equally; ΔE 10.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.36:1WCAG large text: AA
Contrast with black, large text4.82:1WCAG large text: AAA

Named colours

Nearest named CSS colourCrimson (#DC143C)ΔE 15.92, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#0AF1CF
Analogous#F10AA0, #F15B0A
Triadic#2CF10A, #0A2CF1
Split complementary#0AF15B, #0AA0F1
Tetradic#A0F10A, #0AF1CF, #5B0AF1

Tints, shades & saturation

Lighter +40%#FDCAD2
Lighter +30%#FB99A8
Lighter +20%#F9687E
Lighter +10%#F73753
Darker −10%#C00823
Darker −20%#8F061A
Darker −30%#5E0411
Darker −40%#2D0208
More saturated +25%#FB0025
Less saturated −25%#D22942

Channel breakdown

R241
G10
B44
Red241 (94.5%)
Green10 (3.9%)
Blue44 (17.3%)
Hue351.17°
Saturation (HSL)92.03%
Lightness49.22%
Dominant channelRed
Hex per channelR F1 · G 0A · B 2C

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Every value on this page was computed from “f10a2c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.