Recognised as Colour

#BC3803

#BC3803
Orange
Dark
Nearest: Firebrick

#BC3803 is a orange with RGB values 188, 56, 3 and HSL 17°, 97%, 37%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#BC3803#BC3803

HEX#BC3803

RGBrgb(188, 56, 3)

RGB (0–1)0.7373, 0.2196, 0.0118

RGB percentages73.7%, 22%, 1.2%

HSLhsl(17.2, 96.9%, 37.5%)

HSV / HSBhsv(17.2, 98.4%, 73.7%)

CMYK0%, 70.2%, 98.4%, 26.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,335,107

CSS custom property--colour: #BC3803;

Brightness & contrast

Relative luminance0.13526WCAG 2.x, 0 is black and 1 is white

Perceived brightness111.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.67:1

Contrast with white5.67:1WCAG normal text: AA

Contrast with black3.71:1WCAG normal text: Fail

Greyscale equivalent#505050

Inverted#43C7FC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#605400no red cones; affects about 1% of men; ΔE 56.3 from the original

Deuteranopia#817200no green cones; the most common form, about 1% of men; ΔE 56 from the original

Tritanopia#D00030no blue cones; rare, and affects men and women equally; ΔE 25.9 from the original

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

Contrast with white, large text5.67:1WCAG large text: AAA

Contrast with black, large text3.71:1WCAG large text: AA

Named colours

Firebrick · ΔE 18 Chocolate · ΔE 18.9 Dark red · ΔE 20.3 Tomato · ΔE 21.4 Maroon · ΔE 24.5 Brown · ΔE 24.7

Nearest named CSS colourFirebrick (#B22222)ΔE 17.99, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0387BC

Analogous#BC032B, #BC9403

Triadic#03BC38, #3803BC

Split complementary#03BC94, #032BBC

Tetradic#2BBC03, #0387BC, #9403BC

Tints, shades & saturation

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

Lighter +40%#FDAE8E

Lighter +30%#FC8A5C

Lighter +20%#FC6629

Lighter +10%#EE4704

Darker −10%#8A2902

Darker −20%#581A01

Darker −30%#250B01

Darker −40%#000000

More saturated +25%#BF3700

Less saturated −25%#A4421B

Channel breakdown

R188

G56

Red188 (73.7%)

Green56 (22%)

Blue3 (1.2%)

Hue17.19°

Saturation (HSL)96.86%

Lightness37.45%

Dominant channelRed

Hex per channelR BC · G 38 · B 03

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BC3803 (chemical formula)

Formula
45,688.643 g/mol
3804 atoms

BC3803 has a molar mass of 45,688.643 g/mol, made up of 3804 atoms across 2 elements: 1 × B, 3803 × C.

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Molar mass

Molar mass45,688.643 g/mol

Total atoms per molecule3804

Distinct elements2

Mass of one molecule7.5867777 × 10^-20 g

Molecules per gram1.3180826 × 10^19

Name

NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show

Composition by mass

B0%

C100%

Boron (B)10.81 g/mol, 0.024%

Carbon (C × 3803)45,677.833 g/mol, 99.976%

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