Colour

#83001E

#83001E
Red
Dark
Nearest: Brown

#83001E is a red with RGB values 131, 0, 30 and HSL 346°, 100%, 26%. It is a dark colour, so white text on it reaches 10.6:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#83001E#83001E

HEX#83001E

RGBrgb(131, 0, 30)

RGB (0–1)0.5137, 0, 0.1176

RGB percentages51.4%, 0%, 11.8%

HSLhsl(346.3, 100%, 25.7%)

HSV / HSBhsv(346.3, 100%, 51.4%)

CMYK0%, 100%, 77.1%, 48.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer8,585,246

CSS custom property--colour: #83001E;

Brightness & contrast

Relative luminance0.04919WCAG 2.x, 0 is black and 1 is white

Perceived brightness72.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.59:1

Contrast with white10.59:1WCAG normal text: AAA

Contrast with black1.98:1WCAG normal text: Fail

Greyscale equivalent#1E1E1E

Inverted#7CFFE1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#322E1Eno red cones; affects about 1% of men; ΔE 52.9 from the original

Deuteranopia#504819no green cones; the most common form, about 1% of men; ΔE 53.2 from the original

Tritanopia#910010no blue cones; rare, and affects men and women equally; ΔE 13.3 from the original

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

Contrast with white, large text10.59:1WCAG large text: AAA

Contrast with black, large text1.98:1WCAG large text: Fail

Named colours

Brown · ΔE 13 Maroon · ΔE 14.6 Dark red · ΔE 17.8 Firebrick · ΔE 19.9 Indian red · ΔE 27.3 Sienna · ΔE 29.3

Nearest named CSS colourBrown (#A52A2A)ΔE 13.04, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#008365

Analogous#830060, #832400

Triadic#1E8300, #001E83

Split complementary#008324, #006083

Tetradic#5F8300, #008365, #230083

Tints, shades & saturation

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

Lighter +40%#FF5078

Lighter +30%#FF1D51

Lighter +20%#E90035

Lighter +10%#B6002A

Darker −10%#500012

Darker −20%#1D0007

Darker −30%#000000

Darker −40%#000000

More saturated +25%#83001E

Less saturated −25%#731027

Channel breakdown

R131

B30

Red131 (51.4%)

Green0 (0%)

Blue30 (11.8%)

Hue346.26°

Saturation (HSL)100%

Lightness25.69%

Dominant channelRed

Hex per channelR 83 · G 00 · B 1E

Keep nerding

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#83001E

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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