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Recognised as Colour

#EF0356

  • #EF0356
  • Red
  • Dark
  • Nearest: Crimson

#EF0356 is a red with RGB values 239, 3, 86 and HSL 339°, 98%, 47%. 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

#EF0356#EF0356
HEX#EF0356
RGBrgb(239, 3, 86)
RGB (0–1)0.9373, 0.0118, 0.3373
RGB percentages93.7%, 1.2%, 33.7%
HSLhsl(338.9, 97.5%, 47.5%)
HSV / HSBhsv(338.9, 98.7%, 93.7%)
CMYK0%, 98.7%, 64%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,663,958
CSS custom property--colour: #EF0356;

Brightness & contrast

Relative luminance0.19088WCAG 2.x, 0 is black and 1 is white
Perceived brightness133.9 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#3B3B3B
Inverted#10FCA9

Colour vision & accessibility

Protanopia#5F5D57no red cones; affects about 1% of men; ΔE 81.8 from the original
Deuteranopia#948850no green cones; the most common form, about 1% of men; ΔE 82.5 from the original
Tritanopia#FF0033no blue cones; rare, and affects men and women equally; ΔE 24.7 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 13.09, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#03EF9C
Analogous#EF03CC, #EF2603
Triadic#56EF03, #0356EF
Split complementary#03EF26, #03CCEF
Tetradic#CCEF03, #03EF9C, #2603EF

Tints, shades & saturation

Lighter +40%#FEC0D6
Lighter +30%#FE8DB5
Lighter +20%#FD5B94
Lighter +10%#FC2973
Darker −10%#BD0244
Darker −20%#8A0232
Darker −30%#580120
Darker −40%#26000E
More saturated +25%#F20055
Less saturated −25%#D1215F

Channel breakdown

R239
G3
B86
Red239 (93.7%)
Green3 (1.2%)
Blue86 (33.7%)
Hue338.9°
Saturation (HSL)97.52%
Lightness47.45%
Dominant channelRed
Hex per channelR EF · G 03 · B 56

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Every value on this page was computed from “ef0356” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.