Recognised as Colour

#E40408

#E40408
Red
Dark
Nearest: Red

#E40408 is a red with RGB values 228, 4, 8 and HSL 359°, 97%, 45%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#E40408#E40408

HEX#E40408

RGBrgb(228, 4, 8)

RGB (0–1)0.8941, 0.0157, 0.0314

RGB percentages89.4%, 1.6%, 3.1%

HSLhsl(358.9, 96.6%, 45.5%)

HSV / HSBhsv(358.9, 98.2%, 89.4%)

CMYK0%, 98.2%, 96.5%, 10.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,943,240

CSS custom property--colour: #E40408;

Brightness & contrast

Relative luminance0.16598WCAG 2.x, 0 is black and 1 is white

Perceived brightness124.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.86:1

Contrast with white4.86:1WCAG normal text: AA

Contrast with black4.32:1WCAG normal text: Fail

Greyscale equivalent#343434

Inverted#1BFBF7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#615500no red cones; affects about 1% of men; ΔE 79.4 from the original

Deuteranopia#928100no green cones; the most common form, about 1% of men; ΔE 78.6 from the original

Tritanopia#FC0010no blue cones; rare, and affects men and women equally; ΔE 8.4 from the original

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

Contrast with white, large text4.86:1WCAG large text: AAA

Contrast with black, large text4.32:1WCAG large text: AA

Named colours

Red · ΔE 11.6 Orange red · ΔE 14.7 Tomato · ΔE 24.9 Crimson · ΔE 26 Firebrick · ΔE 29.2 Dark red · ΔE 34.9

Nearest named CSS colourRed (#FF0000)ΔE 11.62, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#04E4E0

Analogous#E40478, #E47004

Triadic#08E404, #0408E4

Split complementary#04E470, #0478E4

Tetradic#78E404, #04E4E0, #7004E4

Tints, shades & saturation

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

Lighter +40%#FEB6B8

Lighter +30%#FD8486

Lighter +20%#FC5255

Lighter +10%#FB2024

Darker −10%#B20306

Darker −20%#800204

Darker −30%#4E0103

Darker −40%#1C0001

More saturated +25%#E80004

Less saturated −25%#C72124

Channel breakdown

R228

Red228 (89.4%)

Green4 (1.6%)

Blue8 (3.1%)

Hue358.93°

Saturation (HSL)96.55%

Lightness45.49%

Dominant channelRed

Hex per channelR E4 · G 04 · B 08

Keep nerding

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

#E40408

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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