#172137#172137

#172137 is a dark, muted blue. Relative luminance 0.015; OKLCH L 25.0% C 0.044 H 264.8°. Best body text is #FFFFFF at 16.04:1 contrast (WCAG AA passes).

Color values

HEX	#172137
RGB	rgb(23, 33, 55)
HSL	hsl(221, 41%, 15%)
HSV	hsv(221, 58%, 22%)
CMYK	cmyk(58.2%, 40%, 0%, 78.4%)
CIE-LAB	lab(12.90, 3.24, -15.70)
CIE-LCH	lch(12.90, 16.03, 281.65°)
OKLab	oklab(25.01% -0.004 -0.0442)
OKLCH	oklch(25.01% 0.044 264.8)
XYZ	xyz(1.5866, 1.5456, 3.8284)
Luminance	0.0155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172137 #372D17

analogous

#173137 #172137 #1D1737

triadic

#172137 #371721 #213717

tetradic

#172137 #371731 #372D17 #17371D

square

#172137 #371731 #372D17 #17371D

split-complementary

#172137 #371D17 #313717

monochromatic

#090D16 #090D16 #172137 #293B62 #3B558D

Accessibility & contrast

On white

16.04

#172137 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#172137 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172137

16.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172137	#FFFFFF	#000000	##FFFFFF
##172137	1.00	16.04	1.31	16.04
#FFFFFF	16.04	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#192338

Deuteranopia (green-blind)

#152037

Tritanopia (blue-blind)

#092629

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #172137;
/* rgb */ color: rgb(23, 33, 55);
/* oklch */ color: oklch(25.0% 0.044 264.8);

Tailwind

colors: {
  custom: {
    50: '#565b6e',
    500: '#172137',
    950: '#000000',
  },
}

SCSS

$custom: #172137;
$custom-light: #565b6e;
$custom-dark: #000000;

JSON

{
  "hex": "#172137",
  "rgb": {
    "r": 23,
    "g": 33,
    "b": 55
  },
  "hsl": {
    "h": 221.25,
    "s": 41.026,
    "l": 15.294
  },
  "oklch": {
    "l": 0.25015,
    "c": 0.0444,
    "h": 264.8
  },
  "luminance": 0.01546
}

Semantic roles & 50–950 ramp

primary

#172137

secondary

#6D5E3D

accent

#AB57D1

background

#F5F5F6

surface

#E9E9EB

border

#C5C5C6

text

#030407

muted

#78797A

Preview Lab

Preview with #172137

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →