Colour

#BB3100

#BB3100
Orange
Dark
Nearest: Firebrick

#BB3100 is a orange with RGB values 187, 49, 0 and HSL 16°, 100%, 37%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#BB3100#BB3100

HEX#BB3100

RGBrgb(187, 49, 0)

RGB (0–1)0.7333, 0.1922, 0

RGB percentages73.3%, 19.2%, 0%

HSLhsl(15.7, 100%, 36.7%)

HSV / HSBhsv(15.7, 100%, 73.3%)

CMYK0%, 73.8%, 100%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,267,776

CSS custom property--colour: #BB3100;

Brightness & contrast

Relative luminance0.12761WCAG 2.x, 0 is black and 1 is white

Perceived brightness108.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.91:1

Contrast with white5.91:1WCAG normal text: AA

Contrast with black3.55:1WCAG normal text: Fail

Greyscale equivalent#4B4B4B

Inverted#44CEFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5C5000no red cones; affects about 1% of men; ΔE 58.5 from the original

Deuteranopia#7E6F00no green cones; the most common form, about 1% of men; ΔE 58 from the original

Tritanopia#CF002Ano blue cones; rare, and affects men and women equally; ΔE 22 from the original

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

Contrast with white, large text5.91:1WCAG large text: AAA

Contrast with black, large text3.55:1WCAG large text: AA

Named colours

Firebrick · ΔE 17.5 Dark red · ΔE 19.7 Chocolate · ΔE 21.3 Tomato · ΔE 21.9 Maroon · ΔE 24.3 Brown · ΔE 24.9

Nearest named CSS colourFirebrick (#B22222)ΔE 17.53, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#008ABB

Analogous#BB002C, #BB8F00

Triadic#00BB31, #3100BB

Split complementary#00BB8F, #002CBB

Tetradic#2CBB00, #008ABB, #8F00BB

Tints, shades & saturation

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

Lighter +40%#FFA788

Lighter +30%#FF8255

Lighter +20%#FF5C22

Lighter +10%#EE3E00

Darker −10%#882400

Darker −20%#551600

Darker −30%#220900

Darker −40%#000000

More saturated +25%#BB3100

Less saturated −25%#A43C17

Channel breakdown

R187

G49

Red187 (73.3%)

Green49 (19.2%)

Blue0 (0%)

Hue15.72°

Saturation (HSL)100%

Lightness36.67%

Dominant channelRed

Hex per channelR BB · G 31 · B 00

Keep nerding

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#BB3100

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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