Colour

#B3191C

#B3191C
Red
Dark
Nearest: Firebrick

#B3191C is a red with RGB values 179, 25, 28 and HSL 359°, 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

#B3191C#B3191C

HEX#B3191C

RGBrgb(179, 25, 28)

RGB (0–1)0.702, 0.098, 0.1098

RGB percentages70.2%, 9.8%, 11%

HSLhsl(358.8, 75.5%, 40%)

HSV / HSBhsv(358.8, 86%, 70.2%)

CMYK0%, 86%, 84.4%, 29.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,737,372

CSS custom property--colour: #B3191C;

Brightness & contrast

Relative luminance0.10363WCAG 2.x, 0 is black and 1 is white

Perceived brightness100.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.83:1

Contrast with white6.83:1WCAG normal text: AA

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

Greyscale equivalent#3A3A3A

Inverted#4CE6E3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4E4619no red cones; affects about 1% of men; ΔE 63.2 from the original

Deuteranopia#736613no green cones; the most common form, about 1% of men; ΔE 62.7 from the original

Tritanopia#C6001Dno blue cones; rare, and affects men and women equally; ΔE 9.5 from the original

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

Contrast with white, large text6.83:1WCAG large text: AAA

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

Named colours

Firebrick · ΔE 3.7 Dark red · ΔE 12.7 Brown · ΔE 13.1 Maroon · ΔE 16.7 Crimson · ΔE 16.7 Tomato · ΔE 24.5

Nearest named CSS colourFirebrick (#B22222)ΔE 3.65, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#19B3B0

Analogous#B31969, #B36319

Triadic#1CB319, #191CB3

Split complementary#19B363, #1969B3

Tetradic#69B319, #19B3B0, #6319B3

Tints, shades & saturation

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

Lighter +40%#F3A6A7

Lighter +30%#EC797B

Lighter +20%#E64C4F

Lighter +10%#E01F23

Darker −10%#861315

Darker −20%#5A0C0E

Darker −30%#2D0607

Darker −40%#000000

More saturated +25%#CC0004

Less saturated −25%#9A3335

Channel breakdown

R179

G25

B28

Red179 (70.2%)

Green25 (9.8%)

Blue28 (11%)

Hue358.83°

Saturation (HSL)75.49%

Lightness40%

Dominant channelRed

Hex per channelR B3 · G 19 · B 1C

Keep nerding

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

#B3191C

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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