Colour

#2B0903

#2B0903
Red
Dark
Nearest: Black

#2B0903 is a red with RGB values 43, 9, 3 and HSL 9°, 87%, 9%. It is a dark colour, so white text on it reaches 18.4:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#2B0903#2B0903

HEX#2B0903

RGBrgb(43, 9, 3)

RGB (0–1)0.1686, 0.0353, 0.0118

RGB percentages16.9%, 3.5%, 1.2%

HSLhsl(9, 87%, 9%)

HSV / HSBhsv(9, 93%, 16.9%)

CMYK0%, 79.1%, 93%, 83.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,820,355

CSS custom property--colour: #2B0903;

Brightness & contrast

Relative luminance0.00716WCAG 2.x, 0 is black and 1 is white

Perceived brightness24.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.37:1

Contrast with white18.37:1WCAG normal text: AAA

Contrast with black1.14:1WCAG normal text: Fail

Greyscale equivalent#101010

Inverted#D4F6FC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#131002no red cones; affects about 1% of men; ΔE 17.9 from the original

Deuteranopia#1B1702no green cones; the most common form, about 1% of men; ΔE 18.3 from the original

Tritanopia#300308no blue cones; rare, and affects men and women equally; ΔE 6.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.37:1WCAG large text: AAA

Contrast with black, large text1.14:1WCAG large text: Fail

Named colours

Black · ΔE 19.9 Dark slate grey · ΔE 39.7 Dim grey · ΔE 42.3 Saddle brown · ΔE 45.8 Maroon · ΔE 47 Sienna · ΔE 47.7

Nearest named CSS colourBlack (#000000)ΔE 19.88, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#03252B

Analogous#2B0311, #2B1D03

Triadic#032B09, #09032B

Split complementary#032B1D, #03112B

Tetradic#112B03, #03252B, #1D032B

Tints, shades & saturation

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

Lighter +40%#EA3110

Lighter +30%#BA270D

Lighter +20%#8A1D0A

Lighter +10%#5B1306

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#2E0700

Less saturated −25%#250D09

Channel breakdown

R43

Red43 (16.9%)

Green9 (3.5%)

Blue3 (1.2%)

Hue9°

Saturation (HSL)86.96%

Lightness9.02%

Dominant channelRed

Hex per channelR 2B · G 09 · B 03

Keep nerding

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#2B0903

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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