Recognised as Colour

#B71D35

#B71D35
Red
Dark
Nearest: Brown

#B71D35 is a red with RGB values 183, 29, 53 and HSL 351°, 73%, 42%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#B71D35#B71D35

HEX#B71D35

RGBrgb(183, 29, 53)

RGB (0–1)0.7176, 0.1137, 0.2078

RGB percentages71.8%, 11.4%, 20.8%

HSLhsl(350.6, 72.6%, 41.6%)

HSV / HSBhsv(350.6, 84.2%, 71.8%)

CMYK0%, 84.2%, 71%, 28.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,000,565

CSS custom property--colour: #B71D35;

Brightness & contrast

Relative luminance0.11203WCAG 2.x, 0 is black and 1 is white

Perceived brightness104.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.48:1

Contrast with white6.48:1WCAG normal text: AA

Contrast with black3.24:1WCAG normal text: Fail

Greyscale equivalent#3F3F3F

Inverted#48E2CA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4F4935no red cones; affects about 1% of men; ΔE 62.8 from the original

Deuteranopia#756930no green cones; the most common form, about 1% of men; ΔE 62.9 from the original

Tritanopia#C90028no blue cones; rare, and affects men and women equally; ΔE 14.1 from the original

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

Contrast with white, large text6.48:1WCAG large text: AAA

Contrast with black, large text3.24:1WCAG large text: AA

Named colours

Brown · ΔE 10.4 Firebrick · ΔE 10.7 Crimson · ΔE 14.9 Dark red · ΔE 20 Indian red · ΔE 20.5 Maroon · ΔE 21.1

Nearest named CSS colourBrown (#A52A2A)ΔE 10.38, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1DB79F

Analogous#B71D82, #B7521D

Triadic#35B71D, #1D35B7

Split complementary#1DB752, #1D82B7

Tetradic#82B71D, #1DB79F, #521DB7

Tints, shades & saturation

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

Lighter +40%#F2AEB8

Lighter +30%#EB8292

Lighter +20%#E4566C

Lighter +10%#DD2A46

Darker −10%#8B1628

Darker −20%#5F0F1B

Darker −30%#33080F

Darker −40%#070102

More saturated +25%#D20323

Less saturated −25%#9D3847

Channel breakdown

R183

G29

B53

Red183 (71.8%)

Green29 (11.4%)

Blue53 (20.8%)

Hue350.65°

Saturation (HSL)72.64%

Lightness41.57%

Dominant channelRed

Hex per channelR B7 · G 1D · B 35

Keep nerding

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

#B71D35

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