Colour

#9B0100

#9B0100
Red
Dark
Nearest: Dark red

#9B0100 is a red with RGB values 155, 1, 0 and HSL 0°, 100%, 30%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Dark red.

Colour values

#9B0100#9B0100

HEX#9B0100

RGBrgb(155, 1, 0)

RGB (0–1)0.6078, 0.0039, 0

RGB percentages60.8%, 0.4%, 0%

HSLhsl(0.4, 100%, 30.4%)

HSV / HSBhsv(0.4, 100%, 60.8%)

CMYK0%, 99.4%, 100%, 39.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,158,336

CSS custom property--colour: #9B0100;

Brightness & contrast

Relative luminance0.0699WCAG 2.x, 0 is black and 1 is white

Perceived brightness84.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.76:1

Contrast with white8.76:1WCAG normal text: AAA

Contrast with black2.4:1WCAG normal text: Fail

Greyscale equivalent#222222

Inverted#64FEFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3F3700no red cones; affects about 1% of men; ΔE 60.3 from the original

Deuteranopia#615600no green cones; the most common form, about 1% of men; ΔE 59.5 from the original

Tritanopia#AC0006no blue cones; rare, and affects men and women equally; ΔE 6.2 from the original

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

Contrast with white, large text8.76:1WCAG large text: AAA

Contrast with black, large text2.4:1WCAG large text: Fail

Named colours

Dark red · ΔE 7.1 Firebrick · ΔE 10.9 Maroon · ΔE 12.1 Brown · ΔE 17.1 Crimson · ΔE 25.1 Saddle brown · ΔE 29.6

Nearest named CSS colourDark red (#8B0000)ΔE 7.05, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#009A9B

Analogous#9B004D, #9B4E00

Triadic#009B01, #01009B

Split complementary#009B4E, #004D9B

Tetradic#4D9B00, #009A9B, #4E009B

Tints, shades & saturation

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

Lighter +40%#FF6968

Lighter +30%#FF3635

Lighter +20%#FF0402

Lighter +10%#CE0100

Darker −10%#680100

Darker −20%#350000

Darker −30%#020000

Darker −40%#000000

More saturated +25%#9B0100

Less saturated −25%#881413

Channel breakdown

R155

Red155 (60.8%)

Green1 (0.4%)

Blue0 (0%)

Hue0.39°

Saturation (HSL)100%

Lightness30.39%

Dominant channelRed

Hex per channelR 9B · G 01 · B 00

Keep nerding

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#9B0100

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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