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Recognised as Colour

#E4350A

  • #E4350A
  • Red
  • Dark
  • Nearest: Orange red

#E4350A is a red with RGB values 228, 53, 10 and HSL 12°, 92%, 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 Orange red.

Colour values

#E4350A#E4350A
HEX#E4350A
RGBrgb(228, 53, 10)
RGB (0–1)0.8941, 0.2078, 0.0392
RGB percentages89.4%, 20.8%, 3.9%
HSLhsl(11.8, 91.6%, 46.7%)
HSV / HSBhsv(11.8, 95.6%, 89.4%)
CMYK0%, 76.8%, 95.6%, 10.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,955,786
CSS custom property--colour: #E4350A;

Brightness & contrast

Relative luminance0.19062WCAG 2.x, 0 is black and 1 is white
Perceived brightness131.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.81:1
Contrast with white4.36:1WCAG normal text: Fail
Contrast with black4.81:1WCAG normal text: AA
Greyscale equivalent#575757
Inverted#1BCAF5

Colour vision & accessibility

Protanopia#6E6000no red cones; affects about 1% of men; ΔE 70.3 from the original
Deuteranopia#988700no green cones; the most common form, about 1% of men; ΔE 70.5 from the original
Tritanopia#FC0030no blue cones; rare, and affects men and women equally; ΔE 19.5 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 text4.81:1WCAG large text: AAA

Named colours

Nearest named CSS colourOrange red (#FF4500)ΔE 11.24, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#0AB9E4
Analogous#E40A4C, #E4A20A
Triadic#0AE435, #350AE4
Split complementary#0AE4A2, #0A4CE4
Tetradic#4CE40A, #0AB9E4, #A20AE4

Tints, shades & saturation

Lighter +40%#FCCABE
Lighter +30%#FAA38D
Lighter +20%#F87B5C
Lighter +10%#F6532B
Darker −10%#B32A08
Darker −20%#821E06
Darker −30%#511304
Darker −40%#210801
More saturated +25%#EE2F00
Less saturated −25%#C64728

Channel breakdown

R228
G53
B10
Red228 (89.4%)
Green53 (20.8%)
Blue10 (3.9%)
Hue11.83°
Saturation (HSL)91.6%
Lightness46.67%
Dominant channelRed
Hex per channelR E4 · G 35 · B 0A

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Every value on this page was computed from “e4350a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.