Colour

#AC0139

#AC0139
Red
Dark
Nearest: Brown

#AC0139 is a red with RGB values 172, 1, 57 and HSL 340°, 99%, 34%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#AC0139#AC0139

HEX#AC0139

RGBrgb(172, 1, 57)

RGB (0–1)0.6745, 0.0039, 0.2235

RGB percentages67.5%, 0.4%, 22.4%

HSLhsl(340.4, 98.8%, 33.9%)

HSV / HSBhsv(340.4, 99.4%, 67.5%)

CMYK0%, 99.4%, 66.9%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,272,505

CSS custom property--colour: #AC0139;

Brightness & contrast

Relative luminance0.09088WCAG 2.x, 0 is black and 1 is white

Perceived brightness96 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.45:1

Contrast with white7.45:1WCAG normal text: AAA

Contrast with black2.82:1WCAG normal text: Fail

Greyscale equivalent#292929

Inverted#53FEC6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#424039no red cones; affects about 1% of men; ΔE 64.2 from the original

Deuteranopia#696034no green cones; the most common form, about 1% of men; ΔE 64.6 from the original

Tritanopia#BD0020no blue cones; rare, and affects men and women equally; ΔE 20.6 from the original

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

Contrast with white, large text7.45:1WCAG large text: AAA

Contrast with black, large text2.82:1WCAG large text: Fail

Named colours

Brown · ΔE 15.7 Firebrick · ΔE 18.8 Crimson · ΔE 20.1 Indian red · ΔE 23.8 Maroon · ΔE 24.8 Dark red · ΔE 25

Nearest named CSS colourBrown (#A52A2A)ΔE 15.68, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#01AC74

Analogous#AC018E, #AC1F01

Triadic#39AC01, #0139AC

Split complementary#01AC1F, #018FAC

Tetradic#8EAC01, #01AC74, #1F01AC

Tints, shades & saturation

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

Lighter +40%#FE7BA6

Lighter +30%#FE4884

Lighter +20%#FE1561

Lighter +10%#DF014A

Darker −10%#790128

Darker −20%#470017

Darker −30%#140007

Darker −40%#000000

More saturated +25%#AD0039

Less saturated −25%#961740

Channel breakdown

R172

B57

Red172 (67.5%)

Green1 (0.4%)

Blue57 (22.4%)

Hue340.35°

Saturation (HSL)98.84%

Lightness33.92%

Dominant channelRed

Hex per channelR AC · G 01 · B 39

Keep nerding

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

#AC0139

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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