#172A6A#172A6A

#172A6A is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.3% C 0.114 H 266.9°. Best body text is #FFFFFF at 13.33:1 contrast (WCAG AA passes).

Color values

HEX	#172A6A
RGB	rgb(23, 42, 106)
HSL	hsl(226, 64%, 25%)
HSV	hsv(226, 78%, 42%)
CMYK	cmyk(78.3%, 60.4%, 0%, 58.4%)
CIE-LAB	lab(19.55, 17.47, -39.63)
CIE-LCH	lch(19.55, 43.30, 293.79°)
OKLab	oklab(31.3% -0.0061 -0.1143)
OKLCH	oklch(31.3% 0.114 266.9)
XYZ	xyz(3.7819, 2.8783, 13.9891)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A6A #6A5717

analogous

#17536A #172A6A #2D176A

triadic

#172A6A #6A172A #2A6A17

tetradic

#172A6A #6A1753 #6A5717 #176A2D

square

#172A6A #6A1753 #6A5717 #176A2D

split-complementary

#172A6A #6A2D17 #536A17

monochromatic

#050A19 #0C1638 #172A6A #223E9C #2D52CF

Accessibility & contrast

On white

13.33

#172A6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#172A6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A6A

13.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A6A	#FFFFFF	#000000	##FFFFFF
##172A6A	1.00	13.33	1.58	13.33
#FFFFFF	13.33	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00336C

Deuteranopia (green-blind)

#002C69

Tritanopia (blue-blind)

#003A45

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #172a6a;
/* rgb */ color: rgb(23, 42, 106);
/* oklch */ color: oklch(31.3% 0.114 266.9);

Tailwind

colors: {
  custom: {
    50: '#626395',
    500: '#172a6a',
    950: '#000000',
  },
}

SCSS

$custom: #172a6a;
$custom-light: #626395;
$custom-dark: #000000;

JSON

{
  "hex": "#172a6a",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 106
  },
  "hsl": {
    "h": 226.265,
    "s": 64.341,
    "l": 25.294
  },
  "oklch": {
    "l": 0.31298,
    "c": 0.11447,
    "h": 266.9
  },
  "luminance": 0.02879
}

Semantic roles & 50–950 ramp

primary

#172A6A

secondary

#A0893D

accent

#C140E7

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #172A6A

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

Preview Lab → · Contrast checker → · Palette generator →