Colour

#DD2211

#DD2211
Red
Dark
Nearest: Orange red

#DD2211 is a red with RGB values 221, 34, 17 and HSL 5°, 86%, 47%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#DD2211#DD2211

HEX#DD2211

HEX (short)#D21

RGBrgb(221, 34, 17)

RGB (0–1)0.8667, 0.1333, 0.0667

RGB percentages86.7%, 13.3%, 6.7%

HSLhsl(5, 85.7%, 46.7%)

HSV / HSBhsv(5, 92.3%, 86.7%)

CMYK0%, 84.6%, 92.3%, 13.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,492,177

CSS custom property--colour: #DD2211;

Brightness & contrast

Relative luminance0.16557WCAG 2.x, 0 is black and 1 is white

Perceived brightness123.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.87:1

Contrast with white4.87:1WCAG normal text: AA

Contrast with black4.31:1WCAG normal text: Fail

Greyscale equivalent#494949

Inverted#22DDEE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#635708no red cones; affects about 1% of men; ΔE 73.4 from the original

Deuteranopia#907F00no green cones; the most common form, about 1% of men; ΔE 72.8 from the original

Tritanopia#F40022no blue cones; rare, and affects men and women equally; ΔE 11 from the original

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

Contrast with white, large text4.87:1WCAG large text: AAA

Contrast with black, large text4.31:1WCAG large text: AA

Named colours

Orange red · ΔE 16.3 Red · ΔE 17.6 Tomato · ΔE 20 Crimson · ΔE 22.7 Firebrick · ΔE 23.5 Dark red · ΔE 29.7

Nearest named CSS colourOrange red (#FF4500)ΔE 16.28, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#11CCDD

Analogous#DD1166, #DD8811

Triadic#11DD22, #2211DD

Split complementary#11DD88, #1166DD

Tetradic#66DD11, #11CCDD, #8811DD

Tints, shades & saturation

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

Lighter +40%#FAC5C0

Lighter +30%#F79990

Lighter +20%#F36D61

Lighter +10%#EF4232

Darker −10%#AE1B0D

Darker −20%#7E130A

Darker −30%#4F0C06

Darker −40%#200502

More saturated +25%#EE1400

Less saturated −25%#BF3B2F

Channel breakdown

R221

G34

B17

Red221 (86.7%)

Green34 (13.3%)

Blue17 (6.7%)

Hue5°

Saturation (HSL)85.71%

Lightness46.67%

Dominant channelRed

Hex per channelR DD · G 22 · B 11

Keep nerding

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

#DD2211

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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