Colour

#B3191A

#B3191A
Red
Dark
Nearest: Firebrick

#B3191A is a red with RGB values 179, 25, 26 and HSL 360°, 75%, 40%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#B3191A#B3191A

HEX#B3191A

RGBrgb(179, 25, 26)

RGB (0–1)0.702, 0.098, 0.102

RGB percentages70.2%, 9.8%, 10.2%

HSLhsl(359.6, 75.5%, 40%)

HSV / HSBhsv(359.6, 86%, 70.2%)

CMYK0%, 86%, 85.5%, 29.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,737,370

CSS custom property--colour: #B3191A;

Brightness & contrast

Relative luminance0.10354WCAG 2.x, 0 is black and 1 is white

Perceived brightness100.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.84:1

Contrast with white6.84:1WCAG normal text: AA

Contrast with black3.07:1WCAG normal text: Fail

Greyscale equivalent#3A3A3A

Inverted#4CE6E5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4E4517no red cones; affects about 1% of men; ΔE 62.8 from the original

Deuteranopia#736610no green cones; the most common form, about 1% of men; ΔE 62.8 from the original

Tritanopia#C6001Dno blue cones; rare, and affects men and women equally; ΔE 9.2 from the original

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

Contrast with white, large text6.84:1WCAG large text: AAA

Contrast with black, large text3.07:1WCAG large text: AA

Named colours

Firebrick · ΔE 4.5 Dark red · ΔE 12.6 Brown · ΔE 13.8 Maroon · ΔE 16.8 Crimson · ΔE 17.2 Tomato · ΔE 24.3

Nearest named CSS colourFirebrick (#B22222)ΔE 4.46, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#19B3B2

Analogous#B31967, #B36519

Triadic#1AB319, #191AB3

Split complementary#19B365, #1967B3

Tetradic#67B319, #19B3B2, #6519B3

Tints, shades & saturation

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

Lighter +40%#F3A6A6

Lighter +30%#EC797A

Lighter +20%#E64C4D

Lighter +10%#E01F21

Darker −10%#861314

Darker −20%#5A0C0D

Darker −30%#2D0607

Darker −40%#000000

More saturated +25%#CC0001

Less saturated −25%#9A3333

Channel breakdown

R179

G25

B26

Red179 (70.2%)

Green25 (9.8%)

Blue26 (10.2%)

Hue359.61°

Saturation (HSL)75.49%

Lightness40%

Dominant channelRed

Hex per channelR B3 · G 19 · B 1A

Keep nerding

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

#B3191A

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

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