Colour

#CD0000

#CD0000
Red
Dark
Nearest: Red

#CD0000 is a red with RGB values 205, 0, 0 and HSL 0°, 100%, 40%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#CD0000#CD0000

HEX#CD0000

RGBrgb(205, 0, 0)

RGB (0–1)0.8039, 0, 0

RGB percentages80.4%, 0%, 0%

HSLhsl(0, 100%, 40.2%)

HSV / HSBhsv(0, 100%, 80.4%)

CMYK0%, 100%, 100%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,434,880

CSS custom property--colour: #CD0000;

Brightness & contrast

Relative luminance0.12979WCAG 2.x, 0 is black and 1 is white

Perceived brightness112.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.84:1

Contrast with white5.84:1WCAG normal text: AA

Contrast with black3.6:1WCAG normal text: Fail

Greyscale equivalent#2C2C2C

Inverted#32FFFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#564B00no red cones; affects about 1% of men; ΔE 73.9 from the original

Deuteranopia#827300no green cones; the most common form, about 1% of men; ΔE 73 from the original

Tritanopia#E3000Ano blue cones; rare, and affects men and women equally; ΔE 7.4 from the original

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

Contrast with white, large text5.84:1WCAG large text: AAA

Contrast with black, large text3.6:1WCAG large text: AA

Named colours

Red · ΔE 19 Orange red · ΔE 19.1 Firebrick · ΔE 23.1 Crimson · ΔE 24 Tomato · ΔE 24.4 Dark red · ΔE 27.4

Nearest named CSS colourRed (#FF0000)ΔE 19.02, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00CDCD

Analogous#CD0067, #CD6700

Triadic#00CD00, #0000CD

Split complementary#00CD67, #0067CD

Tetradic#67CD00, #00CDCD, #6700CD

Tints, shades & saturation

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

Lighter +40%#FF9A9A

Lighter +30%#FF6767

Lighter +20%#FF3434

Lighter +10%#FF0101

Darker −10%#9A0000

Darker −20%#670000

Darker −30%#340000

Darker −40%#010000

More saturated +25%#CD0000

Less saturated −25%#B31A1A

Channel breakdown

R205

Red205 (80.4%)

Green0 (0%)

Blue0 (0%)

Hue0°

Saturation (HSL)100%

Lightness40.2%

Dominant channelRed

Hex per channelR CD · G 00 · B 00

Keep nerding

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

#CD0000

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

Nerdulate something else