Recognised as Colour

#A40E42

#A40E42
Red
Dark
Nearest: Brown

#A40E42 is a red with RGB values 164, 14, 66 and HSL 339°, 84%, 35%. 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

#A40E42#A40E42

HEX#A40E42

RGBrgb(164, 14, 66)

RGB (0–1)0.6431, 0.0549, 0.2588

RGB percentages64.3%, 5.5%, 25.9%

HSLhsl(339.2, 84.3%, 34.9%)

HSV / HSBhsv(339.2, 91.5%, 64.3%)

CMYK0%, 91.5%, 59.8%, 35.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,751,554

CSS custom property--colour: #A40E42;

Brightness & contrast

Relative luminance0.086WCAG 2.x, 0 is black and 1 is white

Perceived brightness93 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.72:1

Contrast with white7.72:1WCAG normal text: AAA

Contrast with black2.72:1WCAG normal text: Fail

Greyscale equivalent#323232

Inverted#5BF1BD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3F4043no red cones; affects about 1% of men; ΔE 60 from the original

Deuteranopia#645D3Eno green cones; the most common form, about 1% of men; ΔE 60.8 from the original

Tritanopia#B40028no blue cones; rare, and affects men and women equally; ΔE 20.9 from the original

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

Contrast with white, large text7.72:1WCAG large text: AAA

Contrast with black, large text2.72:1WCAG large text: Fail

Named colours

Brown · ΔE 20.1 Indian red · ΔE 24.4 Firebrick · ΔE 25.6 Crimson · ΔE 27.5 Maroon · ΔE 29.1 Dark red · ΔE 30.5

Nearest named CSS colourBrown (#A52A2A)ΔE 20.06, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0EA470

Analogous#A40E8D, #A4250E

Triadic#42A40E, #0E42A4

Split complementary#0EA425, #0E8DA4

Tetradic#8DA40E, #0EA470, #250EA4

Tints, shades & saturation

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

Lighter +40%#F589AE

Lighter +30%#F15A8E

Lighter +20%#ED2B6E

Lighter +10%#D31255

Darker −10%#750A2F

Darker −20%#46061C

Darker −30%#170209

Darker −40%#000000

More saturated +25%#B2003E

Less saturated −25%#8E2449

Channel breakdown

R164

G14

B66

Red164 (64.3%)

Green14 (5.5%)

Blue66 (25.9%)

Hue339.2°

Saturation (HSL)84.27%

Lightness34.9%

Dominant channelRed

Hex per channelR A4 · G 0E · B 42

Keep nerding

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

#A40E42

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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