Colour

#28344F

#28344F
Blue
Dark
Nearest: Dark slate grey

#28344F is a blue with RGB values 40, 52, 79 and HSL 222°, 33%, 23%. It is a dark colour, so white text on it reaches 12.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#28344F#28344F

HEX#28344F

RGBrgb(40, 52, 79)

RGB (0–1)0.1569, 0.2039, 0.3098

RGB percentages15.7%, 20.4%, 31%

HSLhsl(221.5, 32.8%, 23.3%)

HSV / HSBhsv(221.5, 49.4%, 31%)

CMYK49.4%, 34.2%, 0%, 69%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,634,831

CSS custom property--colour: #28344F;

Brightness & contrast

Relative luminance0.03472WCAG 2.x, 0 is black and 1 is white

Perceived brightness52.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.39:1

Contrast with white12.39:1WCAG normal text: AAA

Contrast with black1.69:1WCAG normal text: Fail

Greyscale equivalent#333333

Inverted#D7CBB0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2A3650no red cones; affects about 1% of men; ΔE 1.2 from the original

Deuteranopia#26334Eno green cones; the most common form, about 1% of men; ΔE 0.6 from the original

Tritanopia#1A3A3Eno blue cones; rare, and affects men and women equally; ΔE 18.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text12.39:1WCAG large text: AAA

Contrast with black, large text1.69:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 22.9 Black · ΔE 28.6 Dim grey · ΔE 29.1 Slate grey · ΔE 32.4 Dark slateblue · ΔE 34.1 Steel blue · ΔE 34.5

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 22.93, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4F4328

Analogous#28474F, #30284F

Triadic#4F2834, #344F28

Split complementary#4F3028, #474F28

Tetradic#4F2847, #4F4328, #284F30

Tints, shades & saturation

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

Lighter +40%#8396C0

Lighter +30%#6179AF

Lighter +20%#4A6193

Lighter +10%#394A71

Darker −10%#171E2D

Darker −20%#06070B

Darker −30%#000000

Darker −40%#000000

More saturated +25%#192E5E

Less saturated −25%#373A40

Channel breakdown

R40

G52

B79

Red40 (15.7%)

Green52 (20.4%)

Blue79 (31%)

Hue221.54°

Saturation (HSL)32.77%

Lightness23.33%

Dominant channelBlue

Hex per channelR 28 · G 34 · B 4F

Keep nerding

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

#28344F

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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