Recognised as Colour

#DD1509

#DD1509
Red
Dark
Nearest: Red

#DD1509 is a red with RGB values 221, 21, 9 and HSL 3°, 92%, 45%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#DD1509#DD1509

HEX#DD1509

RGBrgb(221, 21, 9)

RGB (0–1)0.8667, 0.0824, 0.0353

RGB percentages86.7%, 8.2%, 3.5%

HSLhsl(3.4, 92.2%, 45.1%)

HSV / HSBhsv(3.4, 95.9%, 86.7%)

CMYK0%, 90.5%, 95.9%, 13.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,488,841

CSS custom property--colour: #DD1509;

Brightness & contrast

Relative luminance0.15928WCAG 2.x, 0 is black and 1 is white

Perceived brightness121.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.02:1

Contrast with white5.02:1WCAG normal text: AA

Contrast with black4.19:1WCAG normal text: Fail

Greyscale equivalent#3F3F3F

Inverted#22EAF6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#605400no red cones; affects about 1% of men; ΔE 75.7 from the original

Deuteranopia#8E7E00no green cones; the most common form, about 1% of men; ΔE 75.4 from the original

Tritanopia#F40019no blue cones; rare, and affects men and women equally; ΔE 8.8 from the original

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

Contrast with white, large text5.02:1WCAG large text: AAA

Contrast with black, large text4.19:1WCAG large text: AA

Named colours

Red · ΔE 15.1 Orange red · ΔE 15.5 Tomato · ΔE 22.7 Crimson · ΔE 24.4 Firebrick · ΔE 25.9 Dark red · ΔE 31.4

Nearest named CSS colourRed (#FF0000)ΔE 15.14, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#09D1DD

Analogous#DD0967, #DD7F09

Triadic#09DD15, #1509DD

Split complementary#09DD7F, #0967DD

Tetradic#67DD09, #09D1DD, #7F09DD

Tints, shades & saturation

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

Lighter +40%#FCBAB6

Lighter +30%#FA8C85

Lighter +20%#F85D54

Lighter +10%#F62F23

Darker −10%#AC1007

Darker −20%#7B0C05

Darker −30%#4A0703

Darker −40%#190201

More saturated +25%#E60D00

Less saturated −25%#C02E26

Channel breakdown

R221

G21

Red221 (86.7%)

Green21 (8.2%)

Blue9 (3.5%)

Hue3.4°

Saturation (HSL)92.17%

Lightness45.1%

Dominant channelRed

Hex per channelR DD · G 15 · B 09

Keep nerding

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

#DD1509

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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