Colour

#B7002E

#B7002E
Red
Dark
Nearest: Firebrick

#B7002E is a red with RGB values 183, 0, 46 and HSL 345°, 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

#B7002E#B7002E

HEX#B7002E

RGBrgb(183, 0, 46)

RGB (0–1)0.7176, 0, 0.1804

RGB percentages71.8%, 0%, 18%

HSLhsl(344.9, 100%, 35.9%)

HSV / HSBhsv(344.9, 100%, 71.8%)

CMYK0%, 100%, 74.9%, 28.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,993,134

CSS custom property--colour: #B7002E;

Brightness & contrast

Relative luminance0.10265WCAG 2.x, 0 is black and 1 is white

Perceived brightness101.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.88:1

Contrast with white6.88:1WCAG normal text: AA

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

Greyscale equivalent#2A2A2A

Inverted#48FFD1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#49432Eno red cones; affects about 1% of men; ΔE 67.3 from the original

Deuteranopia#726628no green cones; the most common form, about 1% of men; ΔE 67.3 from the original

Tritanopia#CA001Ano blue cones; rare, and affects men and women equally; ΔE 17.5 from the original

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

Contrast with white, large text6.88:1WCAG large text: AAA

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

Named colours

Firebrick · ΔE 10.7 Crimson · ΔE 12.1 Brown · ΔE 13.7 Dark red · ΔE 19.6 Maroon · ΔE 21.5 Indian red · ΔE 25.2

Nearest named CSS colourFirebrick (#B22222)ΔE 10.72, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00B789

Analogous#B70089, #B72E00

Triadic#2EB700, #002EB7

Split complementary#00B72E, #0089B7

Tetradic#8AB700, #00B789, #2E00B7

Tints, shades & saturation

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

Lighter +40%#FF84A3

Lighter +30%#FF517D

Lighter +20%#FF1E57

Lighter +10%#EA003B

Darker −10%#840021

Darker −20%#510014

Darker −30%#1E0008

Darker −40%#000000

More saturated +25%#B7002E

Less saturated −25%#A01739

Channel breakdown

R183

B46

Red183 (71.8%)

Green0 (0%)

Blue46 (18%)

Hue344.92°

Saturation (HSL)100%

Lightness35.88%

Dominant channelRed

Hex per channelR B7 · G 00 · B 2E

Keep nerding

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

#B7002E

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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