Colour

#DC0000

#DC0000
Red
Dark
Nearest: Red

#DC0000 is a red with RGB values 220, 0, 0 and HSL 0°, 100%, 43%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#DC0000#DC0000

HEX#DC0000

RGBrgb(220, 0, 0)

RGB (0–1)0.8627, 0, 0

RGB percentages86.3%, 0%, 0%

HSLhsl(0, 100%, 43.1%)

HSV / HSBhsv(0, 100%, 86.3%)

CMYK0%, 100%, 100%, 13.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,417,920

CSS custom property--colour: #DC0000;

Brightness & contrast

Relative luminance0.15216WCAG 2.x, 0 is black and 1 is white

Perceived brightness120.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.19:1

Contrast with white5.19:1WCAG normal text: AA

Contrast with black4.04:1WCAG normal text: Fail

Greyscale equivalent#2F2F2F

Inverted#23FFFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5D5100no red cones; affects about 1% of men; ΔE 77.8 from the original

Deuteranopia#8C7C00no green cones; the most common form, about 1% of men; ΔE 77 from the original

Tritanopia#F3000Bno blue cones; rare, and affects men and women equally; ΔE 7.7 from the original

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

Contrast with white, large text5.19:1WCAG large text: AAA

Contrast with black, large text4.04:1WCAG large text: AA

Named colours

Red · ΔE 13.2 Orange red · ΔE 15.1 Tomato · ΔE 25.3 Crimson · ΔE 26.5 Firebrick · ΔE 28.3 Dark red · ΔE 33.1

Nearest named CSS colourRed (#FF0000)ΔE 13.23, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00DCDC

Analogous#DC006E, #DC6E00

Triadic#00DC00, #0000DC

Split complementary#00DC6E, #006EDC

Tetradic#6EDC00, #00DCDC, #6E00DC

Tints, shades & saturation

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

Lighter +40%#FFA9A9

Lighter +30%#FF7676

Lighter +20%#FF4343

Lighter +10%#FF1010

Darker −10%#A90000

Darker −20%#760000

Darker −30%#430000

Darker −40%#100000

More saturated +25%#DC0000

Less saturated −25%#C11C1C

Channel breakdown

R220

Red220 (86.3%)

Green0 (0%)

Blue0 (0%)

Hue0°

Saturation (HSL)100%

Lightness43.14%

Dominant channelRed

Hex per channelR DC · G 00 · B 00

Keep nerding

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#DC0000

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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