Colour

#B80015

#B80015
Red
Dark
Nearest: Firebrick

#B80015 is a red with RGB values 184, 0, 21 and HSL 353°, 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

#B80015#B80015

HEX#B80015

RGBrgb(184, 0, 21)

RGB (0–1)0.7216, 0, 0.0824

RGB percentages72.2%, 0%, 8.2%

HSLhsl(353.2, 100%, 36.1%)

HSV / HSBhsv(353.2, 100%, 72.2%)

CMYK0%, 100%, 88.6%, 27.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,058,645

CSS custom property--colour: #B80015;

Brightness & contrast

Relative luminance0.10244WCAG 2.x, 0 is black and 1 is white

Perceived brightness100.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.89:1

Contrast with white6.89:1WCAG normal text: AA

Contrast with black3.05:1WCAG normal text: Fail

Greyscale equivalent#292929

Inverted#47FFEA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4C4312no red cones; affects about 1% of men; ΔE 67.9 from the original

Deuteranopia#746705no green cones; the most common form, about 1% of men; ΔE 67.9 from the original

Tritanopia#CB000Eno blue cones; rare, and affects men and women equally; ΔE 9.9 from the original

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

Contrast with white, large text6.89:1WCAG large text: AAA

Contrast with black, large text3.05:1WCAG large text: AA

Named colours

Firebrick · ΔE 9.6 Crimson · ΔE 15.9 Dark red · ΔE 16 Brown · ΔE 19 Maroon · ΔE 20.5 Tomato · ΔE 24.6

Nearest named CSS colourFirebrick (#B22222)ΔE 9.65, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00B8A3

Analogous#B80071, #B84700

Triadic#15B800, #0015B8

Split complementary#00B847, #0071B8

Tetradic#71B800, #00B8A3, #4700B8

Tints, shades & saturation

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

Lighter +40%#FF8593

Lighter +30%#FF5266

Lighter +20%#FF1F39

Lighter +10%#EB001B

Darker −10%#85000F

Darker −20%#520009

Darker −30%#1F0004

Darker −40%#000000

More saturated +25%#B80015

Less saturated −25%#A11727

Channel breakdown

R184

B21

Red184 (72.2%)

Green0 (0%)

Blue21 (8.2%)

Hue353.15°

Saturation (HSL)100%

Lightness36.08%

Dominant channelRed

Hex per channelR B8 · G 00 · B 15

Keep nerding

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

#B80015

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