Colour

#28283C

#28283C
Blue
Dark
Nearest: Black

#28283C is a blue with RGB values 40, 40, 60 and HSL 240°, 20%, 20%. It is a dark colour, so white text on it reaches 14.4:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#28283C#28283C

HEX#28283C

RGBrgb(40, 40, 60)

RGB (0–1)0.1569, 0.1569, 0.2353

RGB percentages15.7%, 15.7%, 23.5%

HSLhsl(240, 20%, 19.6%)

HSV / HSBhsv(240, 33.3%, 23.5%)

CMYK33.3%, 33.3%, 0%, 76.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,631,740

CSS custom property--colour: #28283C;

Brightness & contrast

Relative luminance0.02295WCAG 2.x, 0 is black and 1 is white

Perceived brightness42.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 14.39:1

Contrast with white14.39:1WCAG normal text: AAA

Contrast with black1.46:1WCAG normal text: Fail

Greyscale equivalent#292929

Inverted#D7D7C3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#222A3Dno red cones; affects about 1% of men; ΔE 3.3 from the original

Deuteranopia#22293Bno green cones; the most common form, about 1% of men; ΔE 3.2 from the original

Tritanopia#232C2Fno blue cones; rare, and affects men and women equally; ΔE 12.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text14.39:1WCAG large text: AAA

Contrast with black, large text1.46:1WCAG large text: Fail

Named colours

Black · ΔE 22 Dark slate grey · ΔE 24.2 Dim grey · ΔE 30.8 Slate grey · ΔE 36.8 Dark slateblue · ΔE 38.3 Gray · ΔE 39.2

Nearest named CSS colourBlack (#000000)ΔE 21.95, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3C3C28

Analogous#28323C, #32283C

Triadic#3C2828, #283C28

Split complementary#3C3228, #323C28

Tetradic#3C2832, #3C3C28, #283C32

Tints, shades & saturation

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

Lighter +40%#8383AD

Lighter +30%#656598

Lighter +20%#515179

Lighter +10%#3C3C5B

Darker −10%#14141D

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1C1C49

Less saturated −25%#323232

Channel breakdown

R40

G40

B60

Red40 (15.7%)

Green40 (15.7%)

Blue60 (23.5%)

Hue240°

Saturation (HSL)20%

Lightness19.61%

Dominant channelBlue

Hex per channelR 28 · G 28 · B 3C

Keep nerding

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

#28283C

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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