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Recognised as Colour

#EF5448

  • #EF5448
  • Red
  • Dark
  • Nearest: Tomato

#EF5448 is a red with RGB values 239, 84, 72 and HSL 4°, 84%, 61%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#EF5448#EF5448
HEX#EF5448
RGBrgb(239, 84, 72)
RGB (0–1)0.9373, 0.3294, 0.2824
RGB percentages93.7%, 32.9%, 28.2%
HSLhsl(4.3, 83.9%, 61%)
HSV / HSBhsv(4.3, 69.9%, 93.7%)
CMYK0%, 64.9%, 69.9%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,684,680
CSS custom property--colour: #EF5448;

Brightness & contrast

Relative luminance0.25159WCAG 2.x, 0 is black and 1 is white
Perceived brightness147.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.03:1
Contrast with white3.48:1WCAG normal text: Fail
Contrast with black6.03:1WCAG normal text: AA
Greyscale equivalent#747474
Inverted#10ABB7

Colour vision & accessibility

Protanopia#7F7446no red cones; affects about 1% of men; ΔE 63.4 from the original
Deuteranopia#A59643no green cones; the most common form, about 1% of men; ΔE 64.3 from the original
Tritanopia#FF2B52no blue cones; rare, and affects men and women equally; ΔE 19.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.48:1WCAG large text: AA
Contrast with black, large text6.03:1WCAG large text: AAA

Named colours

Nearest named CSS colourTomato (#FF6347)ΔE 8.56, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#48E3EF
Analogous#EF4890, #EFA848
Triadic#48EF54, #5448EF
Split complementary#48EFA8, #4890EF
Tetradic#90EF48, #48E3EF, #A848EF

Tints, shades & saturation

Lighter +40%#FFFFFF
Lighter +30%#FBD7D5
Lighter +20%#F7ACA6
Lighter +10%#F38077
Darker −10%#EB2819
Darker −20%#C01D11
Darker −30%#91160D
Darker −40%#620F09
More saturated +25%#FF4638
Less saturated −25%#D66961

Channel breakdown

R239
G84
B72
Red239 (93.7%)
Green84 (32.9%)
Blue72 (28.2%)
Hue4.31°
Saturation (HSL)83.92%
Lightness60.98%
Dominant channelRed
Hex per channelR EF · G 54 · B 48

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Every value on this page was computed from “ef5448” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.