Colour

#B70F0F

#B70F0F
Red
Dark
Nearest: Firebrick

#B70F0F is a red with RGB values 183, 15, 15 and HSL 0°, 85%, 39%. 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

#B70F0F#B70F0F

HEX#B70F0F

RGBrgb(183, 15, 15)

RGB (0–1)0.7176, 0.0588, 0.0588

RGB percentages71.8%, 5.9%, 5.9%

HSLhsl(0, 84.8%, 38.8%)

HSV / HSBhsv(0, 91.8%, 71.8%)

CMYK0%, 91.8%, 91.8%, 28.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,996,943

CSS custom property--colour: #B70F0F;

Brightness & contrast

Relative luminance0.10443WCAG 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 6.8:1

Contrast with white6.8:1WCAG normal text: AA

Contrast with black3.09:1WCAG normal text: Fail

Greyscale equivalent#333333

Inverted#48F0F0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4E440Ano red cones; affects about 1% of men; ΔE 65.7 from the original

Deuteranopia#756700no green cones; the most common form, about 1% of men; ΔE 65.4 from the original

Tritanopia#CA0014no blue cones; rare, and affects men and women equally; ΔE 7.8 from the original

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

Contrast with white, large text6.8:1WCAG large text: AAA

Contrast with black, large text3.09:1WCAG large text: AA

Named colours

Firebrick · ΔE 10.6 Dark red · ΔE 15.5 Crimson · ΔE 18.8 Brown · ΔE 20 Maroon · ΔE 20.4 Tomato · ΔE 23.8

Nearest named CSS colourFirebrick (#B22222)ΔE 10.63, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0FB7B7

Analogous#B70F63, #B7630F

Triadic#0FB70F, #0F0FB7

Split complementary#0FB763, #0F63B7

Tetradic#63B70F, #0FB7B7, #630FB7

Tints, shades & saturation

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

Lighter +40%#F79B9B

Lighter +30%#F36C6C

Lighter +20%#EF3D3D

Lighter +10%#E61313

Darker −10%#880B0B

Darker −20%#590707

Darker −30%#2A0303

Darker −40%#000000

More saturated +25%#C60000

Less saturated −25%#9E2828

Channel breakdown

R183

G15

B15

Red183 (71.8%)

Green15 (5.9%)

Blue15 (5.9%)

Hue0°

Saturation (HSL)84.85%

Lightness38.82%

Dominant channelRed

Hex per channelR B7 · G 0F · B 0F

Keep nerding

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

#B70F0F

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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