Colour

#9B0033

#9B0033
Red
Dark
Nearest: Brown

#9B0033 is a red with RGB values 155, 0, 51 and HSL 340°, 100%, 30%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#9B0033#9B0033

HEX#9B0033

RGBrgb(155, 0, 51)

RGB (0–1)0.6078, 0, 0.2

RGB percentages60.8%, 0%, 20%

HSLhsl(340.3, 100%, 30.4%)

HSV / HSBhsv(340.3, 100%, 60.8%)

CMYK0%, 100%, 67.1%, 39.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,158,131

CSS custom property--colour: #9B0033;

Brightness & contrast

Relative luminance0.07208WCAG 2.x, 0 is black and 1 is white

Perceived brightness86.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.6:1

Contrast with white8.6:1WCAG normal text: AAA

Contrast with black2.44:1WCAG normal text: Fail

Greyscale equivalent#252525

Inverted#64FFCC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3B3933no red cones; affects about 1% of men; ΔE 59.4 from the original

Deuteranopia#5E562Fno green cones; the most common form, about 1% of men; ΔE 59.9 from the original

Tritanopia#AB001Cno blue cones; rare, and affects men and women equally; ΔE 19.5 from the original

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

Contrast with white, large text8.6:1WCAG large text: AAA

Contrast with black, large text2.44:1WCAG large text: Fail

Named colours

Brown · ΔE 15.3 Firebrick · ΔE 20.8 Maroon · ΔE 22.9 Dark red · ΔE 24.3 Indian red · ΔE 24.6 Crimson · ΔE 25.8

Nearest named CSS colourBrown (#A52A2A)ΔE 15.29, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#009B68

Analogous#9B0081, #9B1A00

Triadic#339B00, #00339B

Split complementary#009B1A, #00819B

Tetradic#819B00, #009B68, #1A009B

Tints, shades & saturation

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

Lighter +40%#FF689A

Lighter +30%#FF3577

Lighter +20%#FF0255

Lighter +10%#CE0044

Darker −10%#680022

Darker −20%#350011

Darker −30%#020001

Darker −40%#000000

More saturated +25%#9B0033

Less saturated −25%#88133A

Channel breakdown

R155

B51

Red155 (60.8%)

Green0 (0%)

Blue51 (20%)

Hue340.26°

Saturation (HSL)100%

Lightness30.39%

Dominant channelRed

Hex per channelR 9B · G 00 · B 33

Keep nerding

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#9B0033

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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