Recognised as Colour

#B0391F

#B0391F
Red
Dark
Nearest: Firebrick

#B0391F is a red with RGB values 176, 57, 31 and HSL 11°, 70%, 41%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#B0391F#B0391F

HEX#B0391F

RGBrgb(176, 57, 31)

RGB (0–1)0.6902, 0.2235, 0.1216

RGB percentages69%, 22.4%, 12.2%

HSLhsl(10.8, 70%, 40.6%)

HSV / HSBhsv(10.8, 82.4%, 69%)

CMYK0%, 67.6%, 82.4%, 31%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,548,959

CSS custom property--colour: #B0391F;

Brightness & contrast

Relative luminance0.12255WCAG 2.x, 0 is black and 1 is white

Perceived brightness106.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.09:1

Contrast with white6.09:1WCAG normal text: AA

Contrast with black3.45:1WCAG normal text: Fail

Greyscale equivalent#505050

Inverted#4FC6E0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5C511Bno red cones; affects about 1% of men; ΔE 51.1 from the original

Deuteranopia#796C19no green cones; the most common form, about 1% of men; ΔE 51.8 from the original

Tritanopia#C21234no blue cones; rare, and affects men and women equally; ΔE 20.4 from the original

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

Contrast with white, large text6.09:1WCAG large text: AAA

Contrast with black, large text3.45:1WCAG large text: AA

Named colours

Firebrick · ΔE 10 Brown · ΔE 12 Dark red · ΔE 14.1 Maroon · ΔE 16.5 Sienna · ΔE 18.9 Saddle brown · ΔE 21.1

Nearest named CSS colourFirebrick (#B22222)ΔE 9.95, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1F96B0

Analogous#B01F4E, #B0821F

Triadic#1FB039, #391FB0

Split complementary#1FB081, #1F4EB0

Tetradic#4DB01F, #1F96B0, #811FB0

Tints, shades & saturation

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

Lighter +40%#F0B7AB

Lighter +30%#E9927F

Lighter +20%#E16D54

Lighter +10%#D94829

Darker −10%#852B17

Darker −20%#591D10

Darker −30%#2E0F08

Darker −40%#030100

More saturated +25%#CA2805

Less saturated −25%#964A39

Channel breakdown

R176

G57

B31

Red176 (69%)

Green57 (22.4%)

Blue31 (12.2%)

Hue10.76°

Saturation (HSL)70.05%

Lightness40.59%

Dominant channelRed

Hex per channelR B0 · G 39 · B 1F

Keep nerding

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

#B0391F

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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