Recognised as Colour

#E43F3B

#E43F3B
Red
Dark
Nearest: Crimson

#E43F3B is a red with RGB values 228, 63, 59 and HSL 1°, 76%, 56%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#E43F3B#E43F3B

HEX#E43F3B

RGBrgb(228, 63, 59)

RGB (0–1)0.8941, 0.2471, 0.2314

RGB percentages89.4%, 24.7%, 23.1%

HSLhsl(1.4, 75.8%, 56.3%)

HSV / HSBhsv(1.4, 74.1%, 89.4%)

CMYK0%, 72.4%, 74.1%, 10.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,958,395

CSS custom property--colour: #E43F3B;

Brightness & contrast

Relative luminance0.20365WCAG 2.x, 0 is black and 1 is white

Perceived brightness135.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.07:1

Contrast with white4.14:1WCAG normal text: Fail

Contrast with black5.07:1WCAG normal text: AA

Greyscale equivalent#626262

Inverted#1BC0C4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#706639no red cones; affects about 1% of men; ΔE 67.6 from the original

Deuteranopia#998A35no green cones; the most common form, about 1% of men; ΔE 68 from the original

Tritanopia#FB0040no blue cones; rare, and affects men and women equally; ΔE 17.6 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text4.14:1WCAG large text: AA

Contrast with black, large text5.07:1WCAG large text: AAA

Named colours

Crimson · ΔE 12 Tomato · ΔE 12.5 Firebrick · ΔE 15.1 Brown · ΔE 22 Coral · ΔE 24 Indian red · ΔE 25.7

Nearest named CSS colourCrimson (#DC143C)ΔE 11.95, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#3BE0E4

Analogous#E43B8B, #E4933B

Triadic#3BE43F, #3F3BE4

Split complementary#3BE494, #3B8BE4

Tetradic#8BE43B, #3BE0E4, #943BE4

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FDEFEE

Lighter +30%#F7C3C1

Lighter +20%#F09795

Lighter +10%#EA6B68

Darker −10%#CF211D

Darker −20%#A31A16

Darker −30%#761310

Darker −40%#490C0A

More saturated +25%#FF2520

Less saturated −25%#C85A57

Channel breakdown

R228

G63

B59

Red228 (89.4%)

Green63 (24.7%)

Blue59 (23.1%)

Hue1.42°

Saturation (HSL)75.78%

Lightness56.27%

Dominant channelRed

Hex per channelR E4 · G 3F · B 3B

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#E43F3B

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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