Recognised as Colour

#E13131

#E13131
Red
Dark
Nearest: Crimson

#E13131 is a red with RGB values 225, 49, 49 and HSL 0°, 75%, 54%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#E13131#E13131

HEX#E13131

RGBrgb(225, 49, 49)

RGB (0–1)0.8824, 0.1922, 0.1922

RGB percentages88.2%, 19.2%, 19.2%

HSLhsl(0, 74.6%, 53.7%)

HSV / HSBhsv(0, 78.2%, 88.2%)

CMYK0%, 78.2%, 78.2%, 11.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,758,193

CSS custom property--colour: #E13131;

Brightness & contrast

Relative luminance0.18426WCAG 2.x, 0 is black and 1 is white

Perceived brightness129.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.69:1

Contrast with white4.48:1WCAG normal text: Fail

Contrast with black4.69:1WCAG normal text: AA

Greyscale equivalent#565656

Inverted#1ECECE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#695F2Fno red cones; affects about 1% of men; ΔE 71.1 from the original

Deuteranopia#948529no green cones; the most common form, about 1% of men; ΔE 71.4 from the original

Tritanopia#F80034no blue cones; rare, and affects men and women equally; ΔE 13.6 from the original

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

Contrast with white, large text4.48:1WCAG large text: AA

Contrast with black, large text4.69:1WCAG large text: AAA

Named colours

Crimson · ΔE 11.5 Tomato · ΔE 14.9 Firebrick · ΔE 15.8 Brown · ΔE 24.2 Dark red · ΔE 26.6 Orange red · ΔE 26.7

Nearest named CSS colourCrimson (#DC143C)ΔE 11.49, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#31E1E1

Analogous#E13189, #E18931

Triadic#31E131, #3131E1

Split complementary#31E189, #3189E1

Tetradic#89E131, #31E1E1, #8931E1

Tints, shades & saturation

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

Lighter +40%#FBE3E3

Lighter +30%#F4B7B7

Lighter +20%#EE8A8A

Lighter +10%#E75E5E

Darker −10%#C31C1C

Darker −20%#961616

Darker −30%#6A0F0F

Darker −40%#3D0909

More saturated +25%#FF1414

Less saturated −25%#C34F4F

Channel breakdown

R225

G49

B49

Red225 (88.2%)

Green49 (19.2%)

Blue49 (19.2%)

Hue0°

Saturation (HSL)74.58%

Lightness53.73%

Dominant channelRed

Hex per channelR E1 · G 31 · B 31

Keep nerding

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

#E13131

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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