Recognised as Colour

#870B2E

#870B2E
Red
Dark
Nearest: Brown

#870B2E is a red with RGB values 135, 11, 46 and HSL 343°, 85%, 29%. 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

#870B2E#870B2E

HEX#870B2E

RGBrgb(135, 11, 46)

RGB (0–1)0.5294, 0.0431, 0.1804

RGB percentages52.9%, 4.3%, 18%

HSLhsl(343.1, 84.9%, 28.6%)

HSV / HSBhsv(343.1, 91.9%, 52.9%)

CMYK0%, 91.9%, 65.9%, 47.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer8,850,222

CSS custom property--colour: #870B2E;

Brightness & contrast

Relative luminance0.05587WCAG 2.x, 0 is black and 1 is white

Perceived brightness75.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.92:1

Contrast with white9.92:1WCAG normal text: AAA

Contrast with black2.12:1WCAG normal text: Fail

Greyscale equivalent#282828

Inverted#78F4D1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#34332Eno red cones; affects about 1% of men; ΔE 52.1 from the original

Deuteranopia#534C2Bno green cones; the most common form, about 1% of men; ΔE 52.4 from the original

Tritanopia#95001Cno blue cones; rare, and affects men and women equally; ΔE 16 from the original

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

Contrast with white, large text9.92:1WCAG large text: AAA

Contrast with black, large text2.12:1WCAG large text: Fail

Named colours

Brown · ΔE 17.7 Maroon · ΔE 22.9 Firebrick · ΔE 25.6 Dark red · ΔE 26 Indian red · ΔE 26.4 Sienna · ΔE 32.5

Nearest named CSS colourBrown (#A52A2A)ΔE 17.73, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0B8764

Analogous#870B6C, #87260B

Triadic#2E870B, #0B2E87

Split complementary#0B8726, #0B6C87

Tetradic#6C870B, #0B8764, #260B87

Tints, shades & saturation

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

Lighter +40%#F36B91

Lighter +30%#EF3C6E

Lighter +20%#E5134E

Lighter +10%#B60F3E

Darker −10%#58071E

Darker −20%#29030E

Darker −30%#000000

Darker −40%#000000

More saturated +25%#920029

Less saturated −25%#751D36

Channel breakdown

R135

G11

B46

Red135 (52.9%)

Green11 (4.3%)

Blue46 (18%)

Hue343.06°

Saturation (HSL)84.93%

Lightness28.63%

Dominant channelRed

Hex per channelR 87 · G 0B · B 2E

Keep nerding

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

#870B2E

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