Recognised as Colour

#BB1B1E

#BB1B1E
Red
Dark
Nearest: Firebrick

#BB1B1E is a red with RGB values 187, 27, 30 and HSL 359°, 75%, 42%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#BB1B1E#BB1B1E

HEX#BB1B1E

RGBrgb(187, 27, 30)

RGB (0–1)0.7333, 0.1059, 0.1176

RGB percentages73.3%, 10.6%, 11.8%

HSLhsl(358.9, 74.8%, 42%)

HSV / HSBhsv(358.9, 85.6%, 73.3%)

CMYK0%, 85.6%, 84%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,262,174

CSS custom property--colour: #BB1B1E;

Brightness & contrast

Relative luminance0.11442WCAG 2.x, 0 is black and 1 is white

Perceived brightness104.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.39:1

Contrast with white6.39:1WCAG normal text: AA

Contrast with black3.29:1WCAG normal text: Fail

Greyscale equivalent#3D3D3D

Inverted#44E4E1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#52491Bno red cones; affects about 1% of men; ΔE 64.9 from the original

Deuteranopia#786B14no green cones; the most common form, about 1% of men; ΔE 65 from the original

Tritanopia#CF001Fno blue cones; rare, and affects men and women equally; ΔE 10 from the original

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

Contrast with white, large text6.39:1WCAG large text: AAA

Contrast with black, large text3.29:1WCAG large text: AA

Named colours

Firebrick · ΔE 5.9 Crimson · ΔE 15.1 Dark red · ΔE 15.2 Brown · ΔE 15.4 Maroon · ΔE 19.4 Tomato · ΔE 22.5

Nearest named CSS colourFirebrick (#B22222)ΔE 5.89, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1BBBB8

Analogous#BB1B6E, #BB681B

Triadic#1EBB1B, #1B1EBB

Split complementary#1BBB68, #1B6EBB

Tetradic#6EBB1B, #1BBBB8, #681BBB

Tints, shades & saturation

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

Lighter +40%#F3AFB0

Lighter +30%#ED8284

Lighter +20%#E75558

Lighter +10%#E0292C

Darker −10%#8E1517

Darker −20%#620E10

Darker −30%#350809

Darker −40%#090101

More saturated +25%#D60004

Less saturated −25%#A03638

Channel breakdown

R187

G27

B30

Red187 (73.3%)

Green27 (10.6%)

Blue30 (11.8%)

Hue358.88°

Saturation (HSL)74.77%

Lightness41.96%

Dominant channelRed

Hex per channelR BB · G 1B · B 1E

Keep nerding

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

#BB1B1E

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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