Colour

#4B0000

#4B0000
Red
Dark
Nearest: Maroon

#4B0000 is a red with RGB values 75, 0, 0 and HSL 0°, 100%, 15%. It is a dark colour, so white text on it reaches 16.2:1 contrast (AAA for normal text). The nearest named colour is Maroon.

Colour values

#4B0000#4B0000

HEX#4B0000

RGBrgb(75, 0, 0)

RGB (0–1)0.2941, 0, 0

RGB percentages29.4%, 0%, 0%

HSLhsl(0, 100%, 14.7%)

HSV / HSBhsv(0, 100%, 29.4%)

CMYK0%, 100%, 100%, 70.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,915,200

CSS custom property--colour: #4B0000;

Brightness & contrast

Relative luminance0.01496WCAG 2.x, 0 is black and 1 is white

Perceived brightness41 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.16:1

Contrast with white16.16:1WCAG normal text: AAA

Contrast with black1.3:1WCAG normal text: Fail

Greyscale equivalent#101010

Inverted#B4FFFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1B1600no red cones; affects about 1% of men; ΔE 35.7 from the original

Deuteranopia#2D2600no green cones; the most common form, about 1% of men; ΔE 35 from the original

Tritanopia#540001no blue cones; rare, and affects men and women equally; ΔE 4.7 from the original

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

Contrast with white, large text16.16:1WCAG large text: AAA

Contrast with black, large text1.3:1WCAG large text: Fail

Named colours

Maroon · ΔE 27 Brown · ΔE 31.9 Dark red · ΔE 32 Saddle brown · ΔE 33.4 Sienna · ΔE 35.2 Firebrick · ΔE 39.3

Nearest named CSS colourMaroon (#800000)ΔE 26.97, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#004B4B

Analogous#4B0026, #4B2600

Triadic#004B00, #00004B

Split complementary#004B26, #00264B

Tetradic#264B00, #004B4B, #26004B

Tints, shades & saturation

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

Lighter +40%#FF1818

Lighter +30%#E40000

Lighter +20%#B10000

Lighter +10%#7E0000

Darker −10%#180000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#4B0000

Less saturated −25%#420909

Channel breakdown

R75

Red75 (29.4%)

Green0 (0%)

Blue0 (0%)

Hue0°

Saturation (HSL)100%

Lightness14.71%

Dominant channelRed

Hex per channelR 4B · G 00 · B 00

Keep nerding

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#4B0000

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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