Recognised as Colour

#DD0019

#DD0019
Red
Dark
Nearest: Crimson

#DD0019 is a red with RGB values 221, 0, 25 and HSL 353°, 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

#DD0019#DD0019

HEX#DD0019

RGBrgb(221, 0, 25)

RGB (0–1)0.8667, 0, 0.098

RGB percentages86.7%, 0%, 9.8%

HSLhsl(353.2, 100%, 43.3%)

HSV / HSBhsv(353.2, 100%, 86.7%)

CMYK0%, 100%, 88.7%, 13.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,483,481

CSS custom property--colour: #DD0019;

Brightness & contrast

Relative luminance0.15442WCAG 2.x, 0 is black and 1 is white

Perceived brightness121.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.14:1

Contrast with white5.14:1WCAG normal text: AA

Contrast with black4.09:1WCAG normal text: Fail

Greyscale equivalent#313131

Inverted#22FFE6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5C5215no red cones; affects about 1% of men; ΔE 78.3 from the original

Deuteranopia#8C7C03no green cones; the most common form, about 1% of men; ΔE 77.5 from the original

Tritanopia#F40013no blue cones; rare, and affects men and women equally; ΔE 10.7 from the original

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

Contrast with white, large text5.14:1WCAG large text: AAA

Contrast with black, large text4.09:1WCAG large text: AA

Named colours

Crimson · ΔE 18.3 Red · ΔE 18.6 Orange red · ΔE 21 Tomato · ΔE 22.1 Firebrick · ΔE 22.7 Dark red · ΔE 29.8

Nearest named CSS colourCrimson (#DC143C)ΔE 18.31, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00DDC4

Analogous#DD0088, #DD5500

Triadic#19DD00, #0019DD

Split complementary#00DD55, #0088DD

Tetradic#88DD00, #00DDC4, #5500DD

Tints, shades & saturation

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

Lighter +40%#FFAAB4

Lighter +30%#FF7786

Lighter +20%#FF4459

Lighter +10%#FF112C

Darker −10%#AA0013

Darker −20%#77000D

Darker −30%#440008

Darker −40%#110002

More saturated +25%#DD0019

Less saturated −25%#C11C2E

Channel breakdown

R221

B25

Red221 (86.7%)

Green0 (0%)

Blue25 (9.8%)

Hue353.21°

Saturation (HSL)100%

Lightness43.33%

Dominant channelRed

Hex per channelR DD · G 00 · B 19

Keep nerding

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

#DD0019

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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