Colour

#901D08

#901D08
Red
Dark
Nearest: Dark red

#901D08 is a red with RGB values 144, 29, 8 and HSL 9°, 89%, 30%. It is a dark colour, so white text on it reaches 8.9:1 contrast (AAA for normal text). The nearest named colour is Dark red.

Colour values

#901D08#901D08

HEX#901D08

RGBrgb(144, 29, 8)

RGB (0–1)0.5647, 0.1137, 0.0314

RGB percentages56.5%, 11.4%, 3.1%

HSLhsl(9.3, 89.5%, 29.8%)

HSV / HSBhsv(9.3, 94.4%, 56.5%)

CMYK0%, 79.9%, 94.4%, 43.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer9,444,616

CSS custom property--colour: #901D08;

Brightness & contrast

Relative luminance0.06826WCAG 2.x, 0 is black and 1 is white

Perceived brightness81.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.88:1

Contrast with white8.88:1WCAG normal text: AAA

Contrast with black2.37:1WCAG normal text: Fail

Greyscale equivalent#343434

Inverted#6FE2F7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#423A03no red cones; affects about 1% of men; ΔE 50.8 from the original

Deuteranopia#5E5300no green cones; the most common form, about 1% of men; ΔE 50.5 from the original

Tritanopia#9F001Ano blue cones; rare, and affects men and women equally; ΔE 12.2 from the original

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

Contrast with white, large text8.88:1WCAG large text: AAA

Contrast with black, large text2.37:1WCAG large text: Fail

Named colours

Dark red · ΔE 5.7 Maroon · ΔE 6.8 Brown · ΔE 12.6 Firebrick · ΔE 12.7 Saddle brown · ΔE 20.8 Sienna · ΔE 21.8

Nearest named CSS colourDark red (#8B0000)ΔE 5.69, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#087B90

Analogous#900837, #906108

Triadic#08901D, #1D0890

Split complementary#089061, #083790

Tetradic#379008, #087B90, #610890

Tints, shades & saturation

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

Lighter +40%#F7826D

Lighter +30%#F4593D

Lighter +20%#F1300D

Lighter +10%#C0270B

Darker −10%#601305

Darker −20%#2F0A03

Darker −30%#000000

Darker −40%#000000

More saturated +25%#981700

Less saturated −25%#7D2A1B

Channel breakdown

R144

G29

Red144 (56.5%)

Green29 (11.4%)

Blue8 (3.1%)

Hue9.26°

Saturation (HSL)89.47%

Lightness29.8%

Dominant channelRed

Hex per channelR 90 · G 1D · B 08

Keep nerding

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#901D08

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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