#172B69#172B69

#172B69 is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.4% C 0.112 H 266.4°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#172B69
RGB	rgb(23, 43, 105)
HSL	hsl(225, 64%, 25%)
HSV	hsv(225, 78%, 41%)
CMYK	cmyk(78.1%, 59%, 0%, 58.8%)
CIE-LAB	lab(19.76, 16.33, -38.64)
CIE-LCH	lch(19.76, 41.94, 292.91°)
OKLab	oklab(31.43% -0.007 -0.1114)
OKLCH	oklch(31.43% 0.112 266.4)
XYZ	xyz(3.7661, 2.9294, 13.7288)
Luminance	0.0293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172B69 #695517

analogous

#175469 #172B69 #2C1769

triadic

#172B69 #69172B #2B6917

tetradic

#172B69 #691754 #695517 #17692C

square

#172B69 #691754 #695517 #17692C

split-complementary

#172B69 #692C17 #546917

monochromatic

#050A19 #0C1637 #172B69 #22409B #2D54CD

Accessibility & contrast

On white

13.24

#172B69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#172B69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172B69

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172B69	#FFFFFF	#000000	##FFFFFF
##172B69	1.00	13.24	1.59	13.24
#FFFFFF	13.24	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00346B

Deuteranopia (green-blind)

#002C68

Tritanopia (blue-blind)

#003A45

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172b69;
/* rgb */ color: rgb(23, 43, 105);
/* oklch */ color: oklch(31.4% 0.112 266.4);

Tailwind

colors: {
  custom: {
    50: '#616394',
    500: '#172b69',
    950: '#000000',
  },
}

SCSS

$custom: #172b69;
$custom-light: #616394;
$custom-dark: #000000;

JSON

{
  "hex": "#172b69",
  "rgb": {
    "r": 23,
    "g": 43,
    "b": 105
  },
  "hsl": {
    "h": 225.366,
    "s": 64.063,
    "l": 25.098
  },
  "oklch": {
    "l": 0.31429,
    "c": 0.1116,
    "h": 266.4
  },
  "luminance": 0.0293
}

Semantic roles & 50–950 ramp

primary

#172B69

secondary

#9F873D

accent

#BE41E7

background

#F6F5F9

surface

#EBEAF1

border

#C6C6CB

text

#06050D

muted

#7A797E

Preview Lab

Preview with #172B69

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

Preview Lab → · Contrast checker → · Palette generator →