Colour

#30333A

#30333A
Blue
Dark
Nearest: Dark slate grey

#30333A is a blue with RGB values 48, 51, 58 and HSL 222°, 9%, 21%. It is a dark colour, so white text on it reaches 12.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#30333A#30333A

HEX#30333A

RGBrgb(48, 51, 58)

RGB (0–1)0.1882, 0.2, 0.2275

RGB percentages18.8%, 20%, 22.7%

HSLhsl(222, 9.4%, 20.8%)

HSV / HSBhsv(222, 17.2%, 22.7%)

CMYK17.2%, 12.1%, 0%, 77.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,158,842

CSS custom property--colour: #30333A;

Brightness & contrast

Relative luminance0.03302WCAG 2.x, 0 is black and 1 is white

Perceived brightness51 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.65:1

Contrast with white12.65:1WCAG normal text: AAA

Contrast with black1.66:1WCAG normal text: Fail

Greyscale equivalent#333333

Inverted#CFCCC5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#31333Ano red cones; affects about 1% of men; ΔE 0.4 from the original

Deuteranopia#30333Ano green cones; the most common form, about 1% of men; ΔE 0 from the original

Tritanopia#2E3435no blue cones; rare, and affects men and women equally; ΔE 4.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text12.65:1WCAG large text: AAA

Contrast with black, large text1.66:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.8 Black · ΔE 21.8 Dim grey · ΔE 23.7 Slate grey · ΔE 32.2 Gray · ΔE 32.7 Light slate grey · ΔE 35.4

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.84, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3A3730

Analogous#30383A, #32303A

Triadic#3A3033, #333A30

Split complementary#3A3230, #383A30

Tetradic#3A3038, #3A3730, #303A32

Tints, shades & saturation

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

Lighter +40%#9297A4

Lighter +30%#767D8D

Lighter +20%#5E6472

Lighter +10%#474C56

Darker −10%#191A1E

Darker −20%#020202

Darker −30%#000000

Darker −40%#000000

More saturated +25%#232E47

Less saturated −25%#353535

Channel breakdown

R48

G51

B58

Red48 (18.8%)

Green51 (20%)

Blue58 (22.7%)

Hue222°

Saturation (HSL)9.43%

Lightness20.78%

Dominant channelBlue

Hex per channelR 30 · G 33 · B 3A

Keep nerding

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

#30333A

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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