#172A94#172A94

#172A94 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.5% C 0.173 H 267.5°. Best body text is #FFFFFF at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#172A94
RGB	rgb(23, 42, 148)
HSL	hsl(231, 73%, 34%)
HSV	hsv(231, 84%, 58%)
CMYK	cmyk(84.5%, 71.6%, 0%, 42%)
CIE-LAB	lab(23.59, 34.08, -59.58)
CIE-LCH	lch(23.59, 68.64, 299.77°)
OKLab	oklab(35.5% -0.0076 -0.1727)
OKLCH	oklch(35.5% 0.173 267.5)
XYZ	xyz(6.5248, 3.9754, 28.4347)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A94 #948117

analogous

#176894 #172A94 #421794

triadic

#172A94 #94172A #2A9417

tetradic

#172A94 #941768 #948117 #179442

square

#172A94 #941768 #948117 #179442

split-complementary

#172A94 #944217 #689417

monochromatic

#070C2A #0F1B5F #172A94 #1F39C9 #445CE2

Accessibility & contrast

On white

11.70

#172A94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#172A94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A94

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A94	#FFFFFF	#000000	##FFFFFF
##172A94	1.00	11.70	1.80	11.70
#FFFFFF	11.70	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E97

Deuteranopia (green-blind)

#003292

Tritanopia (blue-blind)

#00485C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #172a94;
/* rgb */ color: rgb(23, 42, 148);
/* oklch */ color: oklch(35.5% 0.173 267.5);

Tailwind

colors: {
  custom: {
    50: '#6e64b5',
    500: '#172a94',
    950: '#000000',
  },
}

SCSS

$custom: #172a94;
$custom-light: #6e64b5;
$custom-dark: #000000;

JSON

{
  "hex": "#172a94",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 148
  },
  "hsl": {
    "h": 230.88,
    "s": 73.099,
    "l": 33.529
  },
  "oklch": {
    "l": 0.35504,
    "c": 0.17285,
    "h": 267.5
  },
  "luminance": 0.03976
}

Semantic roles & 50–950 ramp

primary

#172A94

secondary

#C3AF44

accent

#D438F0

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090511

muted

#7B7A80

Preview Lab

Preview with #172A94

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

Preview Lab → · Contrast checker → · Palette generator →