#172C6A#172C6A

#172C6A is a dark, moderate blue. Relative luminance 0.030; OKLCH L 31.7% C 0.112 H 266.0°. Best body text is #FFFFFF at 13.09:1 contrast (WCAG AA passes).

Color values

HEX	#172C6A
RGB	rgb(23, 44, 106)
HSL	hsl(225, 64%, 25%)
HSV	hsv(225, 78%, 42%)
CMYK	cmyk(78.3%, 58.5%, 0%, 58.4%)
CIE-LAB	lab(20.14, 16.01, -38.67)
CIE-LCH	lch(20.14, 41.85, 292.50°)
OKLab	oklab(31.74% -0.0078 -0.1115)
OKLCH	oklch(31.74% 0.112 266)
XYZ	xyz(3.8546, 3.0237, 14.0134)
Luminance	0.0302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172C6A #6A5517

analogous

#17556A #172C6A #2B176A

triadic

#172C6A #6A172C #2C6A17

tetradic

#172C6A #6A1755 #6A5517 #176A2B

square

#172C6A #6A1755 #6A5517 #176A2B

split-complementary

#172C6A #6A2B17 #556A17

monochromatic

#050A19 #0C1738 #172C6A #22419C #2D56CF

Accessibility & contrast

On white

13.09

#172C6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#172C6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172C6A

13.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172C6A	#FFFFFF	#000000	##FFFFFF
##172C6A	1.00	13.09	1.60	13.09
#FFFFFF	13.09	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00356C

Deuteranopia (green-blind)

#002D69

Tritanopia (blue-blind)

#003B46

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #172c6a;
/* rgb */ color: rgb(23, 44, 106);
/* oklch */ color: oklch(31.7% 0.112 266.0);

Tailwind

colors: {
  custom: {
    50: '#626495',
    500: '#172c6a',
    950: '#000000',
  },
}

SCSS

$custom: #172c6a;
$custom-light: #626495;
$custom-dark: #000000;

JSON

{
  "hex": "#172c6a",
  "rgb": {
    "r": 23,
    "g": 44,
    "b": 106
  },
  "hsl": {
    "h": 224.819,
    "s": 64.341,
    "l": 25.294
  },
  "oklch": {
    "l": 0.31741,
    "c": 0.11173,
    "h": 266
  },
  "luminance": 0.03024
}

Semantic roles & 50–950 ramp

primary

#172C6A

secondary

#A0873D

accent

#BD40E7

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #172C6A

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

Preview Lab → · Contrast checker → · Palette generator →