#172F94#172F94

#172F94 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.4% C 0.167 H 266.7°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#172F94
RGB	rgb(23, 47, 148)
HSL	hsl(228, 73%, 34%)
HSV	hsv(228, 84%, 58%)
CMYK	cmyk(84.5%, 68.2%, 0%, 42%)
CIE-LAB	lab(24.80, 30.80, -57.58)
CIE-LCH	lch(24.80, 65.30, 298.14°)
OKLab	oklab(36.39% -0.0098 -0.1668)
OKLCH	oklch(36.39% 0.167 266.7)
XYZ	xyz(6.7133, 4.3525, 28.4975)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F94 #947C17

analogous

#176D94 #172F94 #3D1794

triadic

#172F94 #94172F #2F9417

tetradic

#172F94 #94176D #947C17 #17943D

square

#172F94 #94176D #947C17 #17943D

split-complementary

#172F94 #943D17 #6D9417

monochromatic

#070D2A #0F1E5F #172F94 #1F40C9 #4462E2

Accessibility & contrast

On white

11.23

#172F94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#172F94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F94

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F94	#FFFFFF	#000000	##FFFFFF
##172F94	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004197

Deuteranopia (green-blind)

#003592

Tritanopia (blue-blind)

#004B5D

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #172f94;
/* rgb */ color: rgb(23, 47, 148);
/* oklch */ color: oklch(36.4% 0.167 266.7);

Tailwind

colors: {
  custom: {
    50: '#6d67b4',
    500: '#172f94',
    950: '#000000',
  },
}

SCSS

$custom: #172f94;
$custom-light: #6d67b4;
$custom-dark: #000000;

JSON

{
  "hex": "#172f94",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 148
  },
  "hsl": {
    "h": 228.48,
    "s": 73.099,
    "l": 33.529
  },
  "oklch": {
    "l": 0.36387,
    "c": 0.16712,
    "h": 266.7
  },
  "luminance": 0.04353
}

Semantic roles & 50–950 ramp

primary

#172F94

secondary

#C3AA44

accent

#CC38F0

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #172F94

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

Preview Lab → · Contrast checker → · Palette generator →