Recognised as Colour

#E51D48

#E51D48
Red
Dark
Nearest: Crimson

#E51D48 is a red with RGB values 229, 29, 72 and HSL 347°, 79%, 51%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#E51D48#E51D48

HEX#E51D48

RGBrgb(229, 29, 72)

RGB (0–1)0.898, 0.1137, 0.2824

RGB percentages89.8%, 11.4%, 28.2%

HSLhsl(347.1, 79.4%, 50.6%)

HSV / HSBhsv(347.1, 87.3%, 89.8%)

CMYK0%, 87.3%, 68.6%, 10.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,015,240

CSS custom property--colour: #E51D48;

Brightness & contrast

Relative luminance0.18005WCAG 2.x, 0 is black and 1 is white

Perceived brightness129.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.6:1

Contrast with white4.56:1WCAG normal text: AA

Contrast with black4.6:1WCAG normal text: AA

Greyscale equivalent#4B4B4B

Inverted#1AE2B7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#615B48no red cones; affects about 1% of men; ΔE 76.3 from the original

Deuteranopia#918442no green cones; the most common form, about 1% of men; ΔE 77 from the original

Tritanopia#FC0032no blue cones; rare, and affects men and women equally; ΔE 19.6 from the original

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

Contrast with white, large text4.56:1WCAG large text: AAA

Contrast with black, large text4.6:1WCAG large text: AAA

Named colours

Crimson · ΔE 4.7 Firebrick · ΔE 20.9 Tomato · ΔE 25.4 Brown · ΔE 25.6 Indian red · ΔE 28.8 Dark red · ΔE 32.3

Nearest named CSS colourCrimson (#DC143C)ΔE 4.73, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1DE5BA

Analogous#E51DAC, #E5561D

Triadic#48E51D, #1D48E5

Split complementary#1DE556, #1DACE5

Tetradic#ACE51D, #1DE5BA, #561DE5

Tints, shades & saturation

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

Lighter +40%#FAD4DC

Lighter +30%#F5A6B7

Lighter +20%#F07892

Lighter +10%#EA4B6D

Darker −10%#BA1539

Darker −20%#8C102B

Darker −30%#5E0B1D

Darker −40%#30060F

More saturated +25%#FF0339

Less saturated −25%#C63C5A

Channel breakdown

R229

G29

B72

Red229 (89.8%)

Green29 (11.4%)

Blue72 (28.2%)

Hue347.1°

Saturation (HSL)79.37%

Lightness50.59%

Dominant channelRed

Hex per channelR E5 · G 1D · B 48

Keep nerding

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

#E51D48

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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