Recognised as Colour

#E40E04

#E40E04
Red
Dark
Nearest: Red

#E40E04 is a red with RGB values 228, 14, 4 and HSL 3°, 97%, 45%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#E40E04#E40E04

HEX#E40E04

RGBrgb(228, 14, 4)

RGB (0–1)0.8941, 0.0549, 0.0157

RGB percentages89.4%, 5.5%, 1.6%

HSLhsl(2.7, 96.6%, 45.5%)

HSV / HSBhsv(2.7, 98.2%, 89.4%)

CMYK0%, 93.9%, 98.2%, 10.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,945,796

CSS custom property--colour: #E40E04;

Brightness & contrast

Relative luminance0.16817WCAG 2.x, 0 is black and 1 is white

Perceived brightness125.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.81:1

Contrast with white4.81:1WCAG normal text: AA

Contrast with black4.36:1WCAG normal text: Fail

Greyscale equivalent#3B3B3B

Inverted#1BF1FB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#625600no red cones; affects about 1% of men; ΔE 78.8 from the original

Deuteranopia#928100no green cones; the most common form, about 1% of men; ΔE 77.8 from the original

Tritanopia#FC0014no blue cones; rare, and affects men and women equally; ΔE 8.5 from the original

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

Contrast with white, large text4.81:1WCAG large text: AAA

Contrast with black, large text4.36:1WCAG large text: AA

Named colours

Red · ΔE 11.3 Orange red · ΔE 13.4 Tomato · ΔE 24.9 Crimson · ΔE 27.2 Firebrick · ΔE 29.8 Dark red · ΔE 35.2

Nearest named CSS colourRed (#FF0000)ΔE 11.27, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#04DAE4

Analogous#E4046A, #E47E04

Triadic#04E40E, #0E04E4

Split complementary#04E47E, #046AE4

Tetradic#6AE404, #04DAE4, #7E04E4

Tints, shades & saturation

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

Lighter +40%#FEB9B6

Lighter +30%#FD8A84

Lighter +20%#FC5A52

Lighter +10%#FB2A20

Darker −10%#B20B03

Darker −20%#800802

Darker −30%#4E0501

Darker −40%#1C0200

More saturated +25%#E80A00

Less saturated −25%#C72821

Channel breakdown

R228

G14

Red228 (89.4%)

Green14 (5.5%)

Blue4 (1.6%)

Hue2.68°

Saturation (HSL)96.55%

Lightness45.49%

Dominant channelRed

Hex per channelR E4 · G 0E · B 04

Keep nerding

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

#E40E04

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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