Prussian blue color: hex codes, shades and palettes

Palettes built around prussian blue. Click any swatch to copy its hex code.

A very dark green-leaning blue. It takes its name from an eighteenth-century pigment and reads almost black until placed beside a true black.

Prussian blue hex, RGB, HSL and OKLCH

#16394F

HEX: #16394F
RGB: rgb(22, 57, 79)
HSL: hsl(203, 56%, 20%)
OKLCH: oklch(33.0% 0.056 239.2)
On white: 12.12:1
On black: 1.73:1

Shades of prussian blue

9 steps from one base color, generated in OKLCH so each step is an equal perceived step rather than an equal numeric one. Click a swatch to copy it.

Prussian blue color values

#16394Frgb(22, 57, 79)

Color spaces of #16394f
RGB	22	57	79
HSL	203°	56%	20%
HSV	203°	72%	31%
CMYK	0.72	0.28	0.00	0.69
XYZ	3.2047	3.6610	7.9334
Yxy	3.6610	0.2165	0.2474
CIE-Lab	22.5175	-4.4931	-17.1244
Hunter Lab	19.1338	-3.5868	-11.1896
OKLCH	33.0%	0.056	239.2°

#16394F is 22 red, 57 green and 79 blue. Its blue channel carries the most of it. The nearest of the 216 web safe colors is #003366.

CIE-Lab, XYZ and Yxy are measured against D65, the white point sRGB itself is defined against. Hunter Lab uses the original illuminant C constants, which is what paint and plastics specifications quote, so the two Lab rows are not directly comparable. CMYK is the plain arithmetic conversion: real ink values depend on the press, the paper and the profile.

Base numbers
Base	Red	Green	Blue
Binary	00010110	00111001	01001111
Octal	26	71	117
Decimal	22	57	79
Hex	16	39	4F

#16394f mixed with black

Ten even steps of the classic shade ramp, worked out in RGB, which is how the term has always been defined and how other references list it. The OKLCH scale further down this page answers a different question: it steps by equal perceived amounts, so its values are not the same.

#16394F
#133347
#112D3F
#0F2737
#0D222F
#0B1C27
#08161F
#061117
#040B0F
#020507
#000000

#16394f mixed with white

The tint ramp, by the same rule in the other direction.

#16394F
#2D4C60
#446072
#5B7483
#738895
#8A9CA7
#A1AFB8
#B9C3CA
#D0D7DB
#E7EBED
#FFFFFF

Channel shares

Red13.9%
Green36.1%
Blue50.0%

Color schemes

Turned in OKLCH rather than HSL, so every member keeps the lightness and chroma of the original instead of one of them arriving washed out.

Complementary

#16394F
#4A2E16

Triadic

#16394F
#4C2935
#323916

Analogous

#16394F
#2A3452
#023D45

Monochromatic

#000103
#000307
#001B2C
#16394F
#375A71
#587C95
#7CA1BB

#16394f on black and on white

The quick brown fox jumps over the lazy dog. 1.73:1

The quick brown fox jumps over the lazy dog. 12.12:1

Body text needs 4.5:1 to meet AA and large text needs 3:1, so a ratio tells you which of the two backgrounds this color can be read on, and at what size.

CSS for #16394f

color: #16394f;
background-color: #16394f;
border: 3px solid #16394f;
box-shadow: 1px 1px 3px 2px #16394f;
text-shadow: 4px 4px 2px rgba(22, 57, 79, 0.8);

/* Perceptually even, and what a modern stylesheet wants */
color: oklch(33.0% 0.056 239.2);

The OKLCH form is the same color stated so that lightening or darkening it moves by an amount the eye agrees with. Every current browser understands it.

Contrast and readability

Prussian blue on white measures 12.12:1 and on black 1.73:1. WCAG AA asks for 4.5:1 on normal text and 3:1 on large text and UI components, so the higher of those two decides which background it belongs on. In the scale above, 500 is the first to clear 4.5:1 on white, at 5.24:1.

The contrast checker reports every level for a given pair and suggests the nearest passing shade on the same hue. The color picker builds this same scale from any color you paste in.

Related colors: blue, navy, royal blue, cobalt, periwinkle, transparent blue. See every shade on the colors index.

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