Recognised as Colour

#DD000A

#DD000A
Red
Dark
Nearest: Red

#DD000A is a red with RGB values 221, 0, 10 and HSL 357°, 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 Red.

Colour values

#DD000A#DD000A

HEX#DD000A

RGBrgb(221, 0, 10)

RGB (0–1)0.8667, 0, 0.0392

RGB percentages86.7%, 0%, 3.9%

HSLhsl(357.3, 100%, 43.3%)

HSV / HSBhsv(357.3, 100%, 86.7%)

CMYK0%, 100%, 95.5%, 13.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,483,466

CSS custom property--colour: #DD000A;

Brightness & contrast

Relative luminance0.15394WCAG 2.x, 0 is black and 1 is white

Perceived brightness120.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.15:1

Contrast with white5.15:1WCAG normal text: AA

Contrast with black4.08:1WCAG normal text: Fail

Greyscale equivalent#303030

Inverted#22FFF5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5D5101no red cones; affects about 1% of men; ΔE 77.6 from the original

Deuteranopia#8D7C00no green cones; the most common form, about 1% of men; ΔE 76.8 from the original

Tritanopia#F4000Eno blue cones; rare, and affects men and women equally; ΔE 8.4 from the original

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

Contrast with white, large text5.15:1WCAG large text: AAA

Contrast with black, large text4.08:1WCAG large text: AA

Named colours

Red · ΔE 14.6 Orange red · ΔE 16.8 Crimson · ΔE 23.8 Tomato · ΔE 24 Firebrick · ΔE 26.4 Dark red · ΔE 32

Nearest named CSS colourRed (#FF0000)ΔE 14.6, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00DDD3

Analogous#DD0078, #DD6400

Triadic#0ADD00, #000ADD

Split complementary#00DD64, #0078DD

Tetradic#79DD00, #00DDD3, #6500DD

Tints, shades & saturation

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

Lighter +40%#FFAAAE

Lighter +30%#FF777D

Lighter +20%#FF444C

Lighter +10%#FF111C

Darker −10%#AA0008

Darker −20%#770005

Darker −30%#440003

Darker −40%#110001

More saturated +25%#DD000A

Less saturated −25%#C11C23

Channel breakdown

R221

B10

Red221 (86.7%)

Green0 (0%)

Blue10 (3.9%)

Hue357.29°

Saturation (HSL)100%

Lightness43.33%

Dominant channelRed

Hex per channelR DD · G 00 · B 0A

Keep nerding

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

#DD000A

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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