Recognised as Colour

#2B100B

#2B100B
Red
Dark
Nearest: Black

#2B100B is a red with RGB values 43, 16, 11 and HSL 9°, 59%, 11%. It is a dark colour, so white text on it reaches 17.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#2B100B#2B100B

HEX#2B100B

RGBrgb(43, 16, 11)

RGB (0–1)0.1686, 0.0627, 0.0431

RGB percentages16.9%, 6.3%, 4.3%

HSLhsl(9.4, 59.3%, 10.6%)

HSV / HSBhsv(9.4, 74.4%, 16.9%)

CMYK0%, 62.8%, 74.4%, 83.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,822,155

CSS custom property--colour: #2B100B;

Brightness & contrast

Relative luminance0.00908WCAG 2.x, 0 is black and 1 is white

Perceived brightness26.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.77:1

Contrast with white17.77:1WCAG normal text: AAA

Contrast with black1.18:1WCAG normal text: Fail

Greyscale equivalent#151515

Inverted#D4EFF4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#17140Ano red cones; affects about 1% of men; ΔE 14.3 from the original

Deuteranopia#1D1A0Ano green cones; the most common form, about 1% of men; ΔE 15.1 from the original

Tritanopia#300B0Fno blue cones; rare, and affects men and women equally; ΔE 6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.77:1WCAG large text: AAA

Contrast with black, large text1.18:1WCAG large text: Fail

Named colours

Black · ΔE 17.7 Dark slate grey · ΔE 36.1 Dim grey · ΔE 39.5 Saddle brown · ΔE 45.9 Sienna · ΔE 47.8 Gray · ΔE 48

Nearest named CSS colourBlack (#000000)ΔE 17.68, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0B262B

Analogous#2B0B16, #2B200B

Triadic#0B2B10, #100B2B

Split complementary#0B2B20, #0B162B

Tetradic#162B0B, #0B262B, #200B2B

Tints, shades & saturation

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

Lighter +40%#CC4E36

Lighter +30%#A53D2A

Lighter +20%#7C2E20

Lighter +10%#541F15

Darker −10%#020101

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#320B04

Less saturated −25%#241512

Channel breakdown

R43

G16

B11

Red43 (16.9%)

Green16 (6.3%)

Blue11 (4.3%)

Hue9.38°

Saturation (HSL)59.26%

Lightness10.59%

Dominant channelRed

Hex per channelR 2B · G 10 · B 0B

Keep nerding

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

#2B100B

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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