Colour

#B80009

#B80009
Red
Dark
Nearest: Firebrick

#B80009 is a red with RGB values 184, 0, 9 and HSL 357°, 100%, 36%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#B80009#B80009

HEX#B80009

RGBrgb(184, 0, 9)

RGB (0–1)0.7216, 0, 0.0353

RGB percentages72.2%, 0%, 3.5%

HSLhsl(357.1, 100%, 36.1%)

HSV / HSBhsv(357.1, 100%, 72.2%)

CMYK0%, 100%, 95.1%, 27.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,058,633

CSS custom property--colour: #B80009;

Brightness & contrast

Relative luminance0.1021WCAG 2.x, 0 is black and 1 is white

Perceived brightness100.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.9:1

Contrast with white6.9:1WCAG normal text: AA

Contrast with black3.04:1WCAG normal text: Fail

Greyscale equivalent#282828

Inverted#47FFF6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4C4203no red cones; affects about 1% of men; ΔE 67.7 from the original

Deuteranopia#746700no green cones; the most common form, about 1% of men; ΔE 67.7 from the original

Tritanopia#CC000Ano blue cones; rare, and affects men and women equally; ΔE 7.9 from the original

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

Contrast with white, large text6.9:1WCAG large text: AAA

Contrast with black, large text3.04:1WCAG large text: AA

Named colours

Firebrick · ΔE 13.4 Dark red · ΔE 17.4 Crimson · ΔE 19.6 Maroon · ΔE 22.4 Brown · ΔE 22.8 Tomato · ΔE 24.6

Nearest named CSS colourFirebrick (#B22222)ΔE 13.42, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00B8AF

Analogous#B80065, #B85300

Triadic#09B800, #0009B8

Split complementary#00B853, #0065B8

Tetradic#65B800, #00B8AF, #5300B8

Tints, shades & saturation

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

Lighter +40%#FF858B

Lighter +30%#FF525A

Lighter +20%#FF1F2A

Lighter +10%#EB000B

Darker −10%#850007

Darker −20%#520004

Darker −30%#1F0002

Darker −40%#000000

More saturated +25%#B80009

Less saturated −25%#A1171E

Channel breakdown

R184

Red184 (72.2%)

Green0 (0%)

Blue9 (3.5%)

Hue357.07°

Saturation (HSL)100%

Lightness36.08%

Dominant channelRed

Hex per channelR B8 · G 00 · B 09

Keep nerding

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

#B80009

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