#172A6D#172A6D

#172A6D is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.6% C 0.119 H 267.1°. Best body text is #FFFFFF at 13.22:1 contrast (WCAG AA passes).

Color values

HEX	#172A6D
RGB	rgb(23, 42, 109)
HSL	hsl(227, 65%, 26%)
HSV	hsv(227, 79%, 43%)
CMYK	cmyk(78.9%, 61.5%, 0%, 57.3%)
CIE-LAB	lab(19.81, 18.70, -41.15)
CIE-LCH	lch(19.81, 45.20, 294.44°)
OKLab	oklab(31.57% -0.006 -0.1188)
OKLCH	oklch(31.57% 0.119 267.1)
XYZ	xyz(3.9407, 2.9418, 14.8252)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A6D #6D5A17

analogous

#17556D #172A6D #2F176D

triadic

#172A6D #6D172A #2A6D17

tetradic

#172A6D #6D1755 #6D5A17 #176D2F

square

#172A6D #6D1755 #6D5A17 #176D2F

split-complementary

#172A6D #6D2F17 #556D17

monochromatic

#050A19 #0C173A #172A6D #223DA0 #2C51D2

Accessibility & contrast

On white

13.22

#172A6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#172A6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A6D

13.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A6D	#FFFFFF	#000000	##FFFFFF
##172A6D	1.00	13.22	1.59	13.22
#FFFFFF	13.22	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00346F

Deuteranopia (green-blind)

#002C6C

Tritanopia (blue-blind)

#003B47

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172a6d;
/* rgb */ color: rgb(23, 42, 109);
/* oklch */ color: oklch(31.6% 0.119 267.1);

Tailwind

colors: {
  custom: {
    50: '#636397',
    500: '#172a6d',
    950: '#000000',
  },
}

SCSS

$custom: #172a6d;
$custom-light: #636397;
$custom-dark: #000000;

JSON

{
  "hex": "#172a6d",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 109
  },
  "hsl": {
    "h": 226.744,
    "s": 65.152,
    "l": 25.882
  },
  "oklch": {
    "l": 0.31574,
    "c": 0.11894,
    "h": 267.1
  },
  "luminance": 0.02942
}

Semantic roles & 50–950 ramp

primary

#172A6D

secondary

#A38C3D

accent

#C340E8

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #172A6D

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

Preview Lab → · Contrast checker → · Palette generator →