Colour

#8A0031

#8A0031
Red
Dark
Nearest: Brown

#8A0031 is a red with RGB values 138, 0, 49 and HSL 339°, 100%, 27%. It is a dark colour, so white text on it reaches 9.9:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#8A0031#8A0031

HEX#8A0031

RGBrgb(138, 0, 49)

RGB (0–1)0.5412, 0, 0.1922

RGB percentages54.1%, 0%, 19.2%

HSLhsl(338.7, 100%, 27.1%)

HSV / HSBhsv(338.7, 100%, 54.1%)

CMYK0%, 100%, 64.5%, 45.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer9,044,017

CSS custom property--colour: #8A0031;

Brightness & contrast

Relative luminance0.05625WCAG 2.x, 0 is black and 1 is white

Perceived brightness77.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.88:1

Contrast with white9.88:1WCAG normal text: AAA

Contrast with black2.13:1WCAG normal text: Fail

Greyscale equivalent#212121

Inverted#75FFCE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#323232no red cones; affects about 1% of men; ΔE 54.6 from the original

Deuteranopia#534C2Dno green cones; the most common form, about 1% of men; ΔE 55 from the original

Tritanopia#98001Ano blue cones; rare, and affects men and women equally; ΔE 19.3 from the original

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

Contrast with white, large text9.88:1WCAG large text: AAA

Contrast with black, large text2.13:1WCAG large text: Fail

Named colours

Brown · ΔE 19.4 Maroon · ΔE 25 Firebrick · ΔE 26.6 Indian red · ΔE 27.4 Dark red · ΔE 27.7 Crimson · ΔE 33

Nearest named CSS colourBrown (#A52A2A)ΔE 19.4, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#008A59

Analogous#8A0076, #8A1400

Triadic#318A00, #00318A

Split complementary#008A14, #00768A

Tetradic#768A00, #008A59, #14008A

Tints, shades & saturation

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

Lighter +40%#FF5793

Lighter +30%#FF2472

Lighter +20%#F00055

Lighter +10%#BD0043

Darker −10%#57001F

Darker −20%#24000D

Darker −30%#000000

Darker −40%#000000

More saturated +25%#8A0031

Less saturated −25%#791136

Channel breakdown

R138

B49

Red138 (54.1%)

Green0 (0%)

Blue49 (19.2%)

Hue338.7°

Saturation (HSL)100%

Lightness27.06%

Dominant channelRed

Hex per channelR 8A · G 00 · B 31

Keep nerding

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

#8A0031

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

Nerdulate something else