Colour

#2B303F

#2B303F
Blue
Dark
Nearest: Dark slate grey

#2B303F is a blue with RGB values 43, 48, 63 and HSL 225°, 19%, 21%. It is a dark colour, so white text on it reaches 13.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2B303F#2B303F

HEX#2B303F

RGBrgb(43, 48, 63)

RGB (0–1)0.1686, 0.1882, 0.2471

RGB percentages16.9%, 18.8%, 24.7%

HSLhsl(225, 18.9%, 20.8%)

HSV / HSBhsv(225, 31.7%, 24.7%)

CMYK31.7%, 23.8%, 0%, 75.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,830,399

CSS custom property--colour: #2B303F;

Brightness & contrast

Relative luminance0.02986WCAG 2.x, 0 is black and 1 is white

Perceived brightness48.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.15:1

Contrast with white13.15:1WCAG normal text: AAA

Contrast with black1.6:1WCAG normal text: Fail

Greyscale equivalent#303030

Inverted#D4CFC0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2B3140no red cones; affects about 1% of men; ΔE 0.5 from the original

Deuteranopia#2A303Fno green cones; the most common form, about 1% of men; ΔE 0.4 from the original

Tritanopia#263335no blue cones; rare, and affects men and women equally; ΔE 9.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text13.15:1WCAG large text: AAA

Contrast with black, large text1.6:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 18.9 Black · ΔE 22.5 Dim grey · ΔE 26.5 Slate grey · ΔE 33.1 Gray · ΔE 35.2 Light slate grey · ΔE 36.2

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 18.89, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3F3A2B

Analogous#2B3A3F, #302B3F

Triadic#3F2B30, #303F2B

Split complementary#3F302B, #3A3F2B

Tetradic#3F2B3A, #3F3A2B, #2B3F30

Tints, shades & saturation

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

Lighter +40%#8892AE

Lighter +30%#6A7699

Lighter +20%#545E7C

Lighter +10%#40475D

Darker −10%#161921

Darker −20%#020202

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1E294C

Less saturated −25%#353535

Channel breakdown

R43

G48

B63

Red43 (16.9%)

Green48 (18.8%)

Blue63 (24.7%)

Hue225°

Saturation (HSL)18.87%

Lightness20.78%

Dominant channelBlue

Hex per channelR 2B · G 30 · B 3F

Keep nerding

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

#2B303F

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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