#172D6B#172D6B

#172D6B is a dark, moderate blue. Relative luminance 0.031; OKLCH L 32.1% C 0.112 H 265.6°. Best body text is #FFFFFF at 12.93:1 contrast (WCAG AA passes).

Color values

HEX	#172D6B
RGB	rgb(23, 45, 107)
HSL	hsl(224, 65%, 25%)
HSV	hsv(224, 79%, 42%)
CMYK	cmyk(78.5%, 57.9%, 0%, 58%)
CIE-LAB	lab(20.52, 15.71, -38.70)
CIE-LCH	lch(20.52, 41.77, 292.09°)
OKLab	oklab(32.05% -0.0086 -0.1115)
OKLCH	oklch(32.05% 0.112 265.6)
XYZ	xyz(3.9446, 3.1200, 14.3014)
Luminance	0.0312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172D6B #6B5517

analogous

#17576B #172D6B #2B176B

triadic

#172D6B #6B172D #2D6B17

tetradic

#172D6B #6B1757 #6B5517 #176B2B

square

#172D6B #6B1757 #6B5517 #176B2B

split-complementary

#172D6B #6B2B17 #576B17

monochromatic

#050B19 #0C1839 #172D6B #22429D #2D57D0

Accessibility & contrast

On white

12.93

#172D6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#172D6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172D6B

12.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172D6B	#FFFFFF	#000000	##FFFFFF
##172D6B	1.00	12.93	1.62	12.93
#FFFFFF	12.93	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00356D

Deuteranopia (green-blind)

#002E6A

Tritanopia (blue-blind)

#003C47

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #172d6b;
/* rgb */ color: rgb(23, 45, 107);
/* oklch */ color: oklch(32.1% 0.112 265.6);

Tailwind

colors: {
  custom: {
    50: '#626596',
    500: '#172d6b',
    950: '#000000',
  },
}

SCSS

$custom: #172d6b;
$custom-light: #626596;
$custom-dark: #000000;

JSON

{
  "hex": "#172d6b",
  "rgb": {
    "r": 23,
    "g": 45,
    "b": 107
  },
  "hsl": {
    "h": 224.286,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.32053,
    "c": 0.11187,
    "h": 265.6
  },
  "luminance": 0.0312
}

Semantic roles & 50–950 ramp

primary

#172D6B

secondary

#A1873D

accent

#BC40E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050D

muted

#7A7A7E

Preview Lab

Preview with #172D6B

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

Preview Lab → · Contrast checker → · Palette generator →