Colour

#B60004

#B60004
Red
Dark
Nearest: Firebrick

#B60004 is a red with RGB values 182, 0, 4 and HSL 359°, 100%, 36%. It is a dark colour, so white text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#B60004#B60004

HEX#B60004

RGBrgb(182, 0, 4)

RGB (0–1)0.7137, 0, 0.0157

RGB percentages71.4%, 0%, 1.6%

HSLhsl(358.7, 100%, 35.7%)

HSV / HSBhsv(358.7, 100%, 71.4%)

CMYK0%, 100%, 97.8%, 28.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,927,556

CSS custom property--colour: #B60004;

Brightness & contrast

Relative luminance0.09954WCAG 2.x, 0 is black and 1 is white

Perceived brightness99.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.02:1

Contrast with white7.02:1WCAG normal text: AAA

Contrast with black2.99:1WCAG normal text: Fail

Greyscale equivalent#272727

Inverted#49FFFB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4B4200no red cones; affects about 1% of men; ΔE 67.8 from the original

Deuteranopia#736500no green cones; the most common form, about 1% of men; ΔE 66.5 from the original

Tritanopia#C90009no blue cones; rare, and affects men and women equally; ΔE 6.9 from the original

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

Contrast with white, large text7.02:1WCAG large text: AAA

Contrast with black, large text2.99:1WCAG large text: Fail

Named colours

Firebrick · ΔE 14.4 Dark red · ΔE 17.5 Crimson · ΔE 21.2 Maroon · ΔE 22.5 Brown · ΔE 23.6 Tomato · ΔE 25.2

Nearest named CSS colourFirebrick (#B22222)ΔE 14.41, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00B6B2

Analogous#B6005F, #B65700

Triadic#04B600, #0004B6

Split complementary#00B657, #005FB6

Tetradic#5FB600, #00B6B2, #5700B6

Tints, shades & saturation

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

Lighter +40%#FF8386

Lighter +30%#FF5054

Lighter +20%#FF1D22

Lighter +10%#E90005

Darker −10%#830003

Darker −20%#500002

Darker −30%#1D0001

Darker −40%#000000

More saturated +25%#B60004

Less saturated −25%#9F171A

Channel breakdown

R182

Red182 (71.4%)

Green0 (0%)

Blue4 (1.6%)

Hue358.68°

Saturation (HSL)100%

Lightness35.69%

Dominant channelRed

Hex per channelR B6 · G 00 · B 04

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B60004 (chemical formula)

Formula
648,643.24 g/mol
60004 atoms

B60004 has a molar mass of 648,643.24 g/mol, made up of 60004 atoms across 1 element: 60004 × B.

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Molar mass

Molar mass648,643.24 g/mol

Total atoms per molecule60004

Distinct elements1

Mass of one molecule1.0770974 × 10^-18 g

Molecules per gram9.2842111 × 10^17

Composition by mass

B100%

Boron (B × 60004)648,643.24 g/mol, 100%

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Elements in this formula

Boron

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