Colour

#E51D12

#E51D12
Red
Dark
Nearest: Red

#E51D12 is a red with RGB values 229, 29, 18 and HSL 3°, 85%, 48%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#E51D12#E51D12

HEX#E51D12

RGBrgb(229, 29, 18)

RGB (0–1)0.898, 0.1137, 0.0706

RGB percentages89.8%, 11.4%, 7.1%

HSLhsl(3.1, 85.4%, 48.4%)

HSV / HSBhsv(3.1, 92.1%, 89.8%)

CMYK0%, 87.3%, 92.1%, 10.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,015,186

CSS custom property--colour: #E51D12;

Brightness & contrast

Relative luminance0.1758WCAG 2.x, 0 is black and 1 is white

Perceived brightness127.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.65:1

Contrast with white4.65:1WCAG normal text: AA

Contrast with black4.52:1WCAG normal text: AA

Greyscale equivalent#474747

Inverted#1AE2ED

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#655909no red cones; affects about 1% of men; ΔE 76.8 from the original

Deuteranopia#948300no green cones; the most common form, about 1% of men; ΔE 76.3 from the original

Tritanopia#FD001Fno blue cones; rare, and affects men and women equally; ΔE 9.9 from the original

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

Contrast with white, large text4.65:1WCAG large text: AAA

Contrast with black, large text4.52:1WCAG large text: AAA

Named colours

Red · ΔE 14.2 Orange red · ΔE 14.8 Tomato · ΔE 21.5 Crimson · ΔE 23.8 Firebrick · ΔE 26.5 Coral · ΔE 32.9

Nearest named CSS colourRed (#FF0000)ΔE 14.23, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#12DAE5

Analogous#E51271, #E58712

Triadic#12E51D, #1D12E5

Split complementary#12E587, #1270E5

Tetradic#70E512, #12DAE5, #8712E5

Tints, shades & saturation

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

Lighter +40%#FBCBC8

Lighter +30%#F79E99

Lighter +20%#F3716A

Lighter +10%#F0443A

Darker −10%#B6170E

Darker −20%#86110B

Darker −30%#570B07

Darker −40%#280503

More saturated +25%#F70D00

Less saturated −25%#C63931

Channel breakdown

R229

G29

B18

Red229 (89.8%)

Green29 (11.4%)

Blue18 (7.1%)

Hue3.13°

Saturation (HSL)85.43%

Lightness48.43%

Dominant channelRed

Hex per channelR E5 · G 1D · B 12

Keep nerding

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

#E51D12

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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