Colour

#151D31

#151D31
Blue
Dark
Nearest: Black

#151D31 is a blue with RGB values 21, 29, 49 and HSL 223°, 40%, 14%. It is a dark colour, so white text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#151D31#151D31

HEX#151D31

RGBrgb(21, 29, 49)

RGB (0–1)0.0824, 0.1137, 0.1922

RGB percentages8.2%, 11.4%, 19.2%

HSLhsl(222.9, 40%, 13.7%)

HSV / HSBhsv(222.9, 57.1%, 19.2%)

CMYK57.1%, 40.8%, 0%, 80.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,383,729

CSS custom property--colour: #151D31;

Brightness & contrast

Relative luminance0.0126WCAG 2.x, 0 is black and 1 is white

Perceived brightness30 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.77:1

Contrast with white16.77:1WCAG normal text: AAA

Contrast with black1.25:1WCAG normal text: Fail

Greyscale equivalent#1D1D1D

Inverted#EAE2CE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#161F32no red cones; affects about 1% of men; ΔE 1.3 from the original

Deuteranopia#131C31no green cones; the most common form, about 1% of men; ΔE 1 from the original

Tritanopia#0A2124no blue cones; rare, and affects men and women equally; ΔE 14.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.77:1WCAG large text: AAA

Contrast with black, large text1.25:1WCAG large text: Fail

Named colours

Black · ΔE 18.4 Dark slate grey · ΔE 27.4 Dim grey · ΔE 36.5 Dark slateblue · ΔE 40.9 Slate grey · ΔE 42.4 Gray · ΔE 45.1

Nearest named CSS colourBlack (#000000)ΔE 18.42, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#312915

Analogous#152B31, #1B1531

Triadic#31151D, #1D3115

Split complementary#311B15, #2B3115

Tetradic#31152B, #312915, #15311B

Tints, shades & saturation

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

Lighter +40%#5A75B8

Lighter +30%#435C9C

Lighter +20%#344778

Lighter +10%#243255

Darker −10%#06080D

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0C193A

Less saturated −25%#1E2128

Channel breakdown

R21

G29

B49

Red21 (8.2%)

Green29 (11.4%)

Blue49 (19.2%)

Hue222.86°

Saturation (HSL)40%

Lightness13.73%

Dominant channelBlue

Hex per channelR 15 · G 1D · B 31

Keep nerding

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

#151D31

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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