Recognised as Colour

#A8022D

#A8022D
Red
Dark
Nearest: Brown

#A8022D is a red with RGB values 168, 2, 45 and HSL 344°, 98%, 33%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#A8022D#A8022D

HEX#A8022D

RGBrgb(168, 2, 45)

RGB (0–1)0.6588, 0.0078, 0.1765

RGB percentages65.9%, 0.8%, 17.6%

HSLhsl(344.5, 97.6%, 33.3%)

HSV / HSBhsv(344.5, 98.8%, 65.9%)

CMYK0%, 98.8%, 73.2%, 34.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,010,605

CSS custom property--colour: #A8022D;

Brightness & contrast

Relative luminance0.08558WCAG 2.x, 0 is black and 1 is white

Perceived brightness93.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.74:1

Contrast with white7.74:1WCAG normal text: AAA

Contrast with black2.71:1WCAG normal text: Fail

Greyscale equivalent#282828

Inverted#57FDD2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#423E2Dno red cones; affects about 1% of men; ΔE 63.3 from the original

Deuteranopia#685E28no green cones; the most common form, about 1% of men; ΔE 63.3 from the original

Tritanopia#B9001Ano blue cones; rare, and affects men and women equally; ΔE 16.7 from the original

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

Contrast with white, large text7.74:1WCAG large text: AAA

Contrast with black, large text2.71:1WCAG large text: Fail

Named colours

Brown · ΔE 10.9 Firebrick · ΔE 12.7 Crimson · ΔE 18.2 Dark red · ΔE 18.8 Maroon · ΔE 19.1 Indian red · ΔE 23.7

Nearest named CSS colourBrown (#A52A2A)ΔE 10.95, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#02A87D

Analogous#A80280, #A82A02

Triadic#2DA802, #022DA8

Split complementary#02A82A, #0280A8

Tetradic#80A802, #02A87D, #2A02A8

Tints, shades & saturation

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

Lighter +40%#FD799B

Lighter +30%#FD4676

Lighter +20%#FC1450

Lighter +10%#DA033B

Darker −10%#760120

Darker −20%#430112

Darker −30%#110005

Darker −40%#000000

More saturated +25%#AA002C

Less saturated −25%#931737

Channel breakdown

R168

B45

Red168 (65.9%)

Green2 (0.8%)

Blue45 (17.6%)

Hue344.46°

Saturation (HSL)97.65%

Lightness33.33%

Dominant channelRed

Hex per channelR A8 · G 02 · B 2D

Keep nerding

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

#A8022D

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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