Recognised as Colour

#BB001F

#BB001F
Red
Dark
Nearest: Firebrick

#BB001F is a red with RGB values 187, 0, 31 and HSL 350°, 100%, 37%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#BB001F#BB001F

HEX#BB001F

RGBrgb(187, 0, 31)

RGB (0–1)0.7333, 0, 0.1216

RGB percentages73.3%, 0%, 12.2%

HSLhsl(350.1, 100%, 36.7%)

HSV / HSBhsv(350.1, 100%, 73.3%)

CMYK0%, 100%, 83.4%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,255,263

CSS custom property--colour: #BB001F;

Brightness & contrast

Relative luminance0.10664WCAG 2.x, 0 is black and 1 is white

Perceived brightness102.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.7:1

Contrast with white6.7:1WCAG normal text: AA

Contrast with black3.13:1WCAG normal text: Fail

Greyscale equivalent#2A2A2A

Inverted#44FFE0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4C441Dno red cones; affects about 1% of men; ΔE 68.9 from the original

Deuteranopia#756815no green cones; the most common form, about 1% of men; ΔE 68.5 from the original

Tritanopia#CF0013no blue cones; rare, and affects men and women equally; ΔE 12.8 from the original

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

Contrast with white, large text6.7:1WCAG large text: AAA

Contrast with black, large text3.13:1WCAG large text: AA

Named colours

Firebrick · ΔE 8.3 Crimson · ΔE 12.4 Dark red · ΔE 17 Brown · ΔE 17.1 Maroon · ΔE 20.9 Tomato · ΔE 24.8

Nearest named CSS colourFirebrick (#B22222)ΔE 8.29, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00BB9C

Analogous#BB007D, #BB3F00

Triadic#1FBB00, #001FBB

Split complementary#00BB3F, #007DBB

Tetradic#7CBB00, #00BB9C, #3E00BB

Tints, shades & saturation

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

Lighter +40%#FF889C

Lighter +30%#FF5571

Lighter +20%#FF2247

Lighter +10%#EE0027

Darker −10%#880017

Darker −20%#55000E

Darker −30%#220006

Darker −40%#000000

More saturated +25%#BB001F

Less saturated −25%#A4172F

Channel breakdown

R187

B31

Red187 (73.3%)

Green0 (0%)

Blue31 (12.2%)

Hue350.05°

Saturation (HSL)100%

Lightness36.67%

Dominant channelRed

Hex per channelR BB · G 00 · B 1F

Keep nerding

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

#BB001F

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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