#172C69#172C69

#172C69 is a dark, moderate blue. Relative luminance 0.030; OKLCH L 31.7% C 0.110 H 265.9°. Best body text is #FFFFFF at 13.12:1 contrast (WCAG AA passes).

Color values

HEX	#172C69
RGB	rgb(23, 44, 105)
HSL	hsl(225, 64%, 25%)
HSV	hsv(225, 78%, 41%)
CMYK	cmyk(78.1%, 58.1%, 0%, 58.8%)
CIE-LAB	lab(20.06, 15.60, -38.15)
CIE-LCH	lch(20.06, 41.22, 292.24°)
OKLab	oklab(31.65% -0.0079 -0.1099)
OKLCH	oklch(31.65% 0.11 265.9)
XYZ	xyz(3.8029, 3.0030, 13.7411)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172C69 #695417

analogous

#175569 #172C69 #2B1769

triadic

#172C69 #69172C #2C6917

tetradic

#172C69 #691755 #695417 #17692B

square

#172C69 #691755 #695417 #17692B

split-complementary

#172C69 #692B17 #556917

monochromatic

#050B19 #0C1737 #172C69 #22419B #2D56CD

Accessibility & contrast

On white

13.12

#172C69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#172C69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172C69

13.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172C69	#FFFFFF	#000000	##FFFFFF
##172C69	1.00	13.12	1.60	13.12
#FFFFFF	13.12	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00346B

Deuteranopia (green-blind)

#002D68

Tritanopia (blue-blind)

#003B46

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172c69;
/* rgb */ color: rgb(23, 44, 105);
/* oklch */ color: oklch(31.7% 0.110 265.9);

Tailwind

colors: {
  custom: {
    50: '#616494',
    500: '#172c69',
    950: '#000000',
  },
}

SCSS

$custom: #172c69;
$custom-light: #616494;
$custom-dark: #000000;

JSON

{
  "hex": "#172c69",
  "rgb": {
    "r": 23,
    "g": 44,
    "b": 105
  },
  "hsl": {
    "h": 224.634,
    "s": 64.063,
    "l": 25.098
  },
  "oklch": {
    "l": 0.31653,
    "c": 0.11023,
    "h": 265.9
  },
  "luminance": 0.03003
}

Semantic roles & 50–950 ramp

primary

#172C69

secondary

#9F863D

accent

#BC41E7

background

#F6F5F9

surface

#EBEAF1

border

#C6C6CB

text

#06050D

muted

#7A797E

Preview Lab

Preview with #172C69

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

Preview Lab → · Contrast checker → · Palette generator →