Recognised as Colour

#A8051D

#A8051D
Red
Dark
Nearest: Firebrick

#A8051D is a red with RGB values 168, 5, 29 and HSL 351°, 94%, 34%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#A8051D#A8051D

HEX#A8051D

RGBrgb(168, 5, 29)

RGB (0–1)0.6588, 0.0196, 0.1137

RGB percentages65.9%, 2%, 11.4%

HSLhsl(351.2, 94.2%, 33.9%)

HSV / HSBhsv(351.2, 97%, 65.9%)

CMYK0%, 97%, 82.7%, 34.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,011,357

CSS custom property--colour: #A8051D;

Brightness & contrast

Relative luminance0.08522WCAG 2.x, 0 is black and 1 is white

Perceived brightness92.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.77:1

Contrast with white7.77:1WCAG normal text: AAA

Contrast with black2.7:1WCAG normal text: Fail

Greyscale equivalent#292929

Inverted#57FAE2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#453D1Cno red cones; affects about 1% of men; ΔE 62.5 from the original

Deuteranopia#695E15no green cones; the most common form, about 1% of men; ΔE 63.1 from the original

Tritanopia#BA0013no blue cones; rare, and affects men and women equally; ΔE 11.7 from the original

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

Contrast with white, large text7.77:1WCAG large text: AAA

Contrast with black, large text2.7:1WCAG large text: Fail

Named colours

Firebrick · ΔE 5.2 Brown · ΔE 10.5 Dark red · ΔE 11.6 Maroon · ΔE 14.3 Crimson · ΔE 17.4 Indian red · ΔE 26.6

Nearest named CSS colourFirebrick (#B22222)ΔE 5.15, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#05A890

Analogous#A8056F, #A83F05

Triadic#1DA805, #051DA8

Split complementary#05A83F, #056FA8

Tetradic#6EA805, #05A890, #3F05A8

Tints, shades & saturation

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

Lighter +40%#FB7E90

Lighter +30%#FA4C66

Lighter +20%#F81B3B

Lighter +10%#DA0626

Darker −10%#760414

Darker −20%#45020C

Darker −30%#130103

Darker −40%#000000

More saturated +25%#AD0019

Less saturated −25%#921B2C

Channel breakdown

R168

B29

Red168 (65.9%)

Green5 (2%)

Blue29 (11.4%)

Hue351.17°

Saturation (HSL)94.22%

Lightness33.92%

Dominant channelRed

Hex per channelR A8 · G 05 · B 1D

Keep nerding

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

#A8051D

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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