Colour

#8B0005

#8B0005
Red
Dark
Nearest: Dark red

#8B0005 is a red with RGB values 139, 0, 5 and HSL 358°, 100%, 27%. It is a dark colour, so white text on it reaches 10:1 contrast (AAA for normal text). The nearest named colour is Dark red.

Colour values

#8B0005#8B0005

HEX#8B0005

RGBrgb(139, 0, 5)

RGB (0–1)0.5451, 0, 0.0196

RGB percentages54.5%, 0%, 2%

HSLhsl(357.8, 100%, 27.3%)

HSV / HSBhsv(357.8, 100%, 54.5%)

CMYK0%, 100%, 96.4%, 45.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer9,109,509

CSS custom property--colour: #8B0005;

Brightness & contrast

Relative luminance0.055WCAG 2.x, 0 is black and 1 is white

Perceived brightness76 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10:1

Contrast with white10:1WCAG normal text: AAA

Contrast with black2.1:1WCAG normal text: Fail

Greyscale equivalent#1E1E1E

Inverted#74FFFA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#383002no red cones; affects about 1% of men; ΔE 55.1 from the original

Deuteranopia#574C00no green cones; the most common form, about 1% of men; ΔE 54.6 from the original

Tritanopia#9A0006no blue cones; rare, and affects men and women equally; ΔE 6.4 from the original

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

Contrast with white, large text10:1WCAG large text: AAA

Contrast with black, large text2.1:1WCAG large text: Fail

Named colours

Dark red · ΔE 2 Maroon · ΔE 4.2 Firebrick · ΔE 12.1 Brown · ΔE 12.9 Saddle brown · ΔE 26.4 Sienna · ΔE 27.1

Nearest named CSS colourDark red (#8B0000)ΔE 2.01, below the just-noticeable difference

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#008B86

Analogous#8B004A, #8B4000

Triadic#058B00, #00058B

Split complementary#008B40, #004B8B

Tetradic#4B8B00, #008B86, #41008B

Tints, shades & saturation

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

Lighter +40%#FF585E

Lighter +30%#FF252D

Lighter +20%#F10009

Lighter +10%#BE0007

Darker −10%#580003

Darker −20%#250001

Darker −30%#000000

Darker −40%#000000

More saturated +25%#8B0005

Less saturated −25%#7A1115

Channel breakdown

R139

Red139 (54.5%)

Green0 (0%)

Blue5 (2%)

Hue357.84°

Saturation (HSL)100%

Lightness27.25%

Dominant channelRed

Hex per channelR 8B · G 00 · B 05

Keep nerding

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#8B0005

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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