Recognised as Colour

#DD003F

#DD003F
Red
Dark
Nearest: Crimson

#DD003F is a red with RGB values 221, 0, 63 and HSL 343°, 100%, 43%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#DD003F#DD003F

HEX#DD003F

RGBrgb(221, 0, 63)

RGB (0–1)0.8667, 0, 0.2471

RGB percentages86.7%, 0%, 24.7%

HSLhsl(342.9, 100%, 43.3%)

HSV / HSBhsv(342.9, 100%, 86.7%)

CMYK0%, 100%, 71.5%, 13.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,483,519

CSS custom property--colour: #DD003F;

Brightness & contrast

Relative luminance0.15731WCAG 2.x, 0 is black and 1 is white

Perceived brightness122.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.06:1

Contrast with white5.06:1WCAG normal text: AA

Contrast with black4.15:1WCAG normal text: Fail

Greyscale equivalent#343434

Inverted#22FFC0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#59543Fno red cones; affects about 1% of men; ΔE 78 from the original

Deuteranopia#8A7D38no green cones; the most common form, about 1% of men; ΔE 78 from the original

Tritanopia#F30025no blue cones; rare, and affects men and women equally; ΔE 21.4 from the original

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

Contrast with white, large text5.06:1WCAG large text: AAA

Contrast with black, large text4.15:1WCAG large text: AA

Named colours

Crimson · ΔE 3.2 Firebrick · ΔE 19.9 Brown · ΔE 25.2 Tomato · ΔE 26.6 Dark red · ΔE 30.6 Indian red · ΔE 30.6

Nearest named CSS colourCrimson (#DC143C)ΔE 3.22, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00DD9E

Analogous#DD00AD, #DD2F00

Triadic#3FDD00, #003FDD

Split complementary#00DD2F, #00AEDD

Tetradic#AEDD00, #00DD9E, #3000DD

Tints, shades & saturation

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

Lighter +40%#FFAAC2

Lighter +30%#FF779E

Lighter +20%#FF4479

Lighter +10%#FF1155

Darker −10%#AA0030

Darker −20%#770022

Darker −30%#440013

Darker −40%#110005

More saturated +25%#DD003F

Less saturated −25%#C11C4B

Channel breakdown

R221

B63

Red221 (86.7%)

Green0 (0%)

Blue63 (24.7%)

Hue342.9°

Saturation (HSL)100%

Lightness43.33%

Dominant channelRed

Hex per channelR DD · G 00 · B 3F

Keep nerding

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

#DD003F

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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