Colour

#B5013A

#B5013A
Red
Dark
Nearest: Brown

#B5013A is a red with RGB values 181, 1, 58 and HSL 341°, 99%, 36%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#B5013A#B5013A

HEX#B5013A

RGBrgb(181, 1, 58)

RGB (0–1)0.7098, 0.0039, 0.2275

RGB percentages71%, 0.4%, 22.7%

HSLhsl(341, 98.9%, 35.7%)

HSV / HSBhsv(341, 99.4%, 71%)

CMYK0%, 99.4%, 68%, 29%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,862,330

CSS custom property--colour: #B5013A;

Brightness & contrast

Relative luminance0.10151WCAG 2.x, 0 is black and 1 is white

Perceived brightness100.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.93:1

Contrast with white6.93:1WCAG normal text: AA

Contrast with black3.03:1WCAG normal text: Fail

Greyscale equivalent#2B2B2B

Inverted#4AFEC5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#46443Ano red cones; affects about 1% of men; ΔE 67 from the original

Deuteranopia#6F6635no green cones; the most common form, about 1% of men; ΔE 67.5 from the original

Tritanopia#C70021no blue cones; rare, and affects men and women equally; ΔE 20.7 from the original

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

Contrast with white, large text6.93:1WCAG large text: AAA

Contrast with black, large text3.03:1WCAG large text: AA

Named colours

Brown · ΔE 16 Crimson · ΔE 16.4 Firebrick · ΔE 17.3 Indian red · ΔE 24 Dark red · ΔE 24.9 Maroon · ΔE 25.4

Nearest named CSS colourBrown (#A52A2A)ΔE 16.04, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#01B57C

Analogous#B50194, #B52201

Triadic#3AB501, #013AB5

Split complementary#01B522, #0194B5

Tetradic#94B501, #01B57C, #2201B5

Tints, shades & saturation

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

Lighter +40%#FE84AB

Lighter +30%#FE5188

Lighter +20%#FE1E65

Lighter +10%#E8014A

Darker −10%#82012A

Darker −20%#500019

Darker −30%#1D0009

Darker −40%#000000

More saturated +25%#B6003A

Less saturated −25%#9E1842

Channel breakdown

R181

B58

Red181 (71%)

Green1 (0.4%)

Blue58 (22.7%)

Hue341°

Saturation (HSL)98.9%

Lightness35.69%

Dominant channelRed

Hex per channelR B5 · G 01 · B 3A

Keep nerding

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

#B5013A

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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