Recognised as Colour

#15283F

#15283F
Blue
Dark
Nearest: Black

#15283F is a blue with RGB values 21, 40, 63 and HSL 213°, 50%, 16%. It is a dark colour, so white text on it reaches 14.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#15283F#15283F

HEX#15283F

RGBrgb(21, 40, 63)

RGB (0–1)0.0824, 0.1569, 0.2471

RGB percentages8.2%, 15.7%, 24.7%

HSLhsl(212.9, 50%, 16.5%)

HSV / HSBhsv(212.9, 66.7%, 24.7%)

CMYK66.7%, 36.5%, 0%, 75.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,386,559

CSS custom property--colour: #15283F;

Brightness & contrast

Relative luminance0.02036WCAG 2.x, 0 is black and 1 is white

Perceived brightness39 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 14.92:1

Contrast with white14.92:1WCAG normal text: AAA

Contrast with black1.41:1WCAG normal text: Fail

Greyscale equivalent#262626

Inverted#EAD7C0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1E2940no red cones; affects about 1% of men; ΔE 2.5 from the original

Deuteranopia#19253Fno green cones; the most common form, about 1% of men; ΔE 3.6 from the original

Tritanopia#002D30no blue cones; rare, and affects men and women equally; ΔE 17.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text14.92:1WCAG large text: AAA

Contrast with black, large text1.41:1WCAG large text: Fail

Named colours

Black · ΔE 23.1 Dark slate grey · ΔE 23.9 Dim grey · ΔE 33.4 Slate grey · ΔE 37.8 Dark slateblue · ΔE 38.8 Steel blue · ΔE 40.1

Nearest named CSS colourBlack (#000000)ΔE 23.11, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3F2C15

Analogous#153D3F, #17153F

Triadic#3F1528, #283F15

Split complementary#3F1715, #3D3F15

Tetradic#3F153D, #3F2C15, #153F17

Tints, shades & saturation

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

Lighter +40%#588BC8

Lighter +30%#3B71B2

Lighter +20%#2E598C

Lighter +10%#224065

Darker −10%#081019

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0A274A

Less saturated −25%#1F2935

Channel breakdown

R21

G40

B63

Red21 (8.2%)

Green40 (15.7%)

Blue63 (24.7%)

Hue212.86°

Saturation (HSL)50%

Lightness16.47%

Dominant channelBlue

Hex per channelR 15 · G 28 · B 3F

Keep nerding

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

#15283F

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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