#172D70#172D70

#172D70 is a dark, moderate blue. Relative luminance 0.032; OKLCH L 32.5% C 0.119 H 266.0°. Best body text is #FFFFFF at 12.76:1 contrast (WCAG AA passes).

Color values

HEX	#172D70
RGB	rgb(23, 45, 112)
HSL	hsl(225, 66%, 26%)
HSV	hsv(225, 79%, 44%)
CMYK	cmyk(79.5%, 59.8%, 0%, 56.1%)
CIE-LAB	lab(20.94, 17.78, -41.25)
CIE-LCH	lch(20.94, 44.92, 293.31°)
OKLab	oklab(32.5% -0.0082 -0.119)
OKLCH	oklch(32.5% 0.119 266)
XYZ	xyz(4.2153, 3.2283, 15.7271)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172D70 #705A17

analogous

#175A70 #172D70 #2E1770

triadic

#172D70 #70172D #2D7017

tetradic

#172D70 #70175A #705A17 #17702E

square

#172D70 #70175A #705A17 #17702E

split-complementary

#172D70 #702E17 #5A7017

monochromatic

#050A19 #0D193D #172D70 #2141A3 #2D57D4

Accessibility & contrast

On white

12.76

#172D70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#172D70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172D70

12.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172D70	#FFFFFF	#000000	##FFFFFF
##172D70	1.00	12.76	1.65	12.76
#FFFFFF	12.76	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003772

Deuteranopia (green-blind)

#002E6F

Tritanopia (blue-blind)

#003E49

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #172d70;
/* rgb */ color: rgb(23, 45, 112);
/* oklch */ color: oklch(32.5% 0.119 266.0);

Tailwind

colors: {
  custom: {
    50: '#63659a',
    500: '#172d70',
    950: '#000000',
  },
}

SCSS

$custom: #172d70;
$custom-light: #63659a;
$custom-dark: #000000;

JSON

{
  "hex": "#172d70",
  "rgb": {
    "r": 23,
    "g": 45,
    "b": 112
  },
  "hsl": {
    "h": 225.169,
    "s": 65.926,
    "l": 26.471
  },
  "oklch": {
    "l": 0.32499,
    "c": 0.11933,
    "h": 266
  },
  "luminance": 0.03229
}

Semantic roles & 50–950 ramp

primary

#172D70

secondary

#A68C3D

accent

#BF3FE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #172D70

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

Preview Lab → · Contrast checker → · Palette generator →