Colour

#E03131

#E03131
Red
Dark
Nearest: Crimson

#E03131 is a red with RGB values 224, 49, 49 and HSL 0°, 74%, 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

#E03131#E03131

HEX#E03131

RGBrgb(224, 49, 49)

RGB (0–1)0.8784, 0.1922, 0.1922

RGB percentages87.8%, 19.2%, 19.2%

HSLhsl(0, 73.8%, 53.5%)

HSV / HSBhsv(0, 78.1%, 87.8%)

CMYK0%, 78.1%, 78.1%, 12.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,692,657

CSS custom property--colour: #E03131;

Brightness & contrast

Relative luminance0.18266WCAG 2.x, 0 is black and 1 is white

Perceived brightness129.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.65:1

Contrast with white4.51:1WCAG normal text: AA

Contrast with black4.65:1WCAG normal text: AA

Greyscale equivalent#565656

Inverted#1FCECE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#685E2Fno red cones; affects about 1% of men; ΔE 70.8 from the original

Deuteranopia#938429no green cones; the most common form, about 1% of men; ΔE 70.9 from the original

Tritanopia#F70034no blue cones; rare, and affects men and women equally; ΔE 13.7 from the original

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

Contrast with white, large text4.51:1WCAG large text: AAA

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

Named colours

Crimson · ΔE 11.3 Tomato · ΔE 14.9 Firebrick · ΔE 15.4 Brown · ΔE 23.7 Dark red · ΔE 26.2 Orange red · ΔE 27

Nearest named CSS colourCrimson (#DC143C)ΔE 11.35, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#31E0E0

Analogous#E03189, #E08931

Triadic#31E031, #3131E0

Split complementary#31E089, #3189E0

Tetradic#89E031, #31E0E0, #8931E0

Tints, shades & saturation

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

Lighter +40%#FBE2E2

Lighter +30%#F4B6B6

Lighter +20%#ED8A8A

Lighter +10%#E75D5D

Darker −10%#C11D1D

Darker −20%#951616

Darker −30%#681010

Darker −40%#3C0909

More saturated +25%#FE1313

Less saturated −25%#C24F4F

Channel breakdown

R224

G49

B49

Red224 (87.8%)

Green49 (19.2%)

Blue49 (19.2%)

Hue0°

Saturation (HSL)73.84%

Lightness53.53%

Dominant channelRed

Hex per channelR E0 · G 31 · B 31

Keep nerding

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

#E03131

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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