Colour

#51080A

#51080A
Red
Dark
Nearest: Maroon

#51080A is a red with RGB values 81, 8, 10 and HSL 358°, 82%, 17%. It is a dark colour, so white text on it reaches 15.1:1 contrast (AAA for normal text). The nearest named colour is Maroon.

Colour values

#51080A#51080A

HEX#51080A

RGBrgb(81, 8, 10)

RGB (0–1)0.3176, 0.0314, 0.0392

RGB percentages31.8%, 3.1%, 3.9%

HSLhsl(358.4, 82%, 17.5%)

HSV / HSBhsv(358.4, 90.1%, 31.8%)

CMYK0%, 90.1%, 87.7%, 68.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,310,474

CSS custom property--colour: #51080A;

Brightness & contrast

Relative luminance0.01945WCAG 2.x, 0 is black and 1 is white

Perceived brightness44.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.12:1

Contrast with white15.12:1WCAG normal text: AAA

Contrast with black1.39:1WCAG normal text: Fail

Greyscale equivalent#181818

Inverted#AEF7F5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#201C09no red cones; affects about 1% of men; ΔE 35.1 from the original

Deuteranopia#322C07no green cones; the most common form, about 1% of men; ΔE 35.1 from the original

Tritanopia#5A000Ano blue cones; rare, and affects men and women equally; ΔE 5.9 from the original

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

Contrast with white, large text15.12:1WCAG large text: AAA

Contrast with black, large text1.39:1WCAG large text: Fail

Named colours

Maroon · ΔE 26.4 Brown · ΔE 30.3 Dark red · ΔE 31.5 Saddle brown · ΔE 31.6 Sienna · ΔE 33 Firebrick · ΔE 38.2

Nearest named CSS colourMaroon (#800000)ΔE 26.44, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#08514F

Analogous#51082E, #512A08

Triadic#0A5108, #080A51

Split complementary#08512A, #082E51

Tetradic#2F5108, #08514F, #2B0851

Tints, shades & saturation

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

Lighter +40%#EB3A3E

Lighter +30%#DC161B

Lighter +20%#AE1115

Lighter +10%#7F0D10

Darker −10%#230304

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#590002

Less saturated −25%#461315

Channel breakdown

R81

B10

Red81 (31.8%)

Green8 (3.1%)

Blue10 (3.9%)

Hue358.36°

Saturation (HSL)82.02%

Lightness17.45%

Dominant channelRed

Hex per channelR 51 · G 08 · B 0A

Keep nerding

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#51080A

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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