Recognised as Colour

#E40306

#E40306
Red
Dark
Nearest: Red

#E40306 is a red with RGB values 228, 3, 6 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

#E40306#E40306

HEX#E40306

RGBrgb(228, 3, 6)

RGB (0–1)0.8941, 0.0118, 0.0235

RGB percentages89.4%, 1.2%, 2.4%

HSLhsl(359.2, 97.4%, 45.3%)

HSV / HSBhsv(359.2, 98.7%, 89.4%)

CMYK0%, 98.7%, 97.4%, 10.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,942,982

CSS custom property--colour: #E40306;

Brightness & contrast

Relative luminance0.16572WCAG 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 4.87:1

Contrast with white4.87:1WCAG normal text: AA

Contrast with black4.31:1WCAG normal text: Fail

Greyscale equivalent#333333

Inverted#1BFCF9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#615400no red cones; affects about 1% of men; ΔE 79.1 from the original

Deuteranopia#928100no green cones; the most common form, about 1% of men; ΔE 78.7 from the original

Tritanopia#FC000Fno blue cones; rare, and affects men and women equally; ΔE 8.3 from the original

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

Contrast with white, large text4.87:1WCAG large text: AAA

Contrast with black, large text4.31:1WCAG large text: AA

Named colours

Red · ΔE 11.3 Orange red · ΔE 14.4 Tomato · ΔE 25.2 Crimson · ΔE 26.6 Firebrick · ΔE 29.7 Dark red · ΔE 35.2

Nearest named CSS colourRed (#FF0000)ΔE 11.25, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#03E4E1

Analogous#E40376, #E47003

Triadic#06E403, #0306E4

Split complementary#03E470, #0376E4

Tetradic#77E403, #03E4E1, #7103E4

Tints, shades & saturation

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

Lighter +40%#FEB5B6

Lighter +30%#FD8384

Lighter +20%#FD5053

Lighter +10%#FC1E21

Darker −10%#B20205

Darker −20%#7F0203

Darker −30%#4D0102

Darker −40%#1B0001

More saturated +25%#E70003

Less saturated −25%#C72022

Channel breakdown

R228

Red228 (89.4%)

Green3 (1.2%)

Blue6 (2.4%)

Hue359.2°

Saturation (HSL)97.4%

Lightness45.29%

Dominant channelRed

Hex per channelR E4 · G 03 · B 06

Keep nerding

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

#E40306

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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