Recognised as Colour

#E50503

#E50503
Red
Dark
Nearest: Red

#E50503 is a red with RGB values 229, 5, 3 and HSL 1°, 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

#E50503#E50503

HEX#E50503

RGBrgb(229, 5, 3)

RGB (0–1)0.898, 0.0196, 0.0118

RGB percentages89.8%, 2%, 1.2%

HSLhsl(0.5, 97.4%, 45.5%)

HSV / HSBhsv(0.5, 98.7%, 89.8%)

CMYK0%, 97.8%, 98.7%, 10.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,009,027

CSS custom property--colour: #E50503;

Brightness & contrast

Relative luminance0.16773WCAG 2.x, 0 is black and 1 is white

Perceived brightness125.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.82:1

Contrast with white4.82:1WCAG normal text: AA

Contrast with black4.35:1WCAG normal text: Fail

Greyscale equivalent#343434

Inverted#1AFAFC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#615500no red cones; affects about 1% of men; ΔE 79.9 from the original

Deuteranopia#928100no green cones; the most common form, about 1% of men; ΔE 78.8 from the original

Tritanopia#FD0010no blue cones; rare, and affects men and women equally; ΔE 8.1 from the original

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

Contrast with white, large text4.82:1WCAG large text: AAA

Contrast with black, large text4.35:1WCAG large text: AA

Named colours

Red · ΔE 10.4 Orange red · ΔE 13.6 Tomato · ΔE 25.7 Crimson · ΔE 27.7 Firebrick · ΔE 30.6 Dark red · ΔE 36

Nearest named CSS colourRed (#FF0000)ΔE 10.42, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#03E3E5

Analogous#E50372, #E57603

Triadic#03E505, #0503E5

Split complementary#03E576, #0372E5

Tetradic#72E503, #03E3E5, #7603E5

Tints, shades & saturation

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

Lighter +40%#FEB7B6

Lighter +30%#FD8584

Lighter +20%#FD5351

Lighter +10%#FC211F

Darker −10%#B30402

Darker −20%#800302

Darker −30%#4E0201

Darker −40%#1C0100

More saturated +25%#E80200

Less saturated −25%#C82120

Channel breakdown

R229

Red229 (89.8%)

Green5 (2%)

Blue3 (1.2%)

Hue0.53°

Saturation (HSL)97.41%

Lightness45.49%

Dominant channelRed

Hex per channelR E5 · G 05 · B 03

Keep nerding

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

#E50503

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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