#172A6C#172A6C

#172A6C is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.5% C 0.117 H 267.0°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#172A6C
RGB	rgb(23, 42, 108)
HSL	hsl(227, 65%, 26%)
HSV	hsv(227, 79%, 42%)
CMYK	cmyk(78.7%, 61.1%, 0%, 57.6%)
CIE-LAB	lab(19.72, 18.29, -40.64)
CIE-LCH	lch(19.72, 44.57, 294.23°)
OKLab	oklab(31.48% -0.0061 -0.1173)
OKLCH	oklch(31.48% 0.117 267)
XYZ	xyz(3.8871, 2.9204, 14.5433)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A6C #6C5917

analogous

#17546C #172A6C #2E176C

triadic

#172A6C #6C172A #2A6C17

tetradic

#172A6C #6C1754 #6C5917 #176C2E

square

#172A6C #6C1754 #6C5917 #176C2E

split-complementary

#172A6C #6C2E17 #546C17

monochromatic

#050A19 #0C163A #172A6C #223E9E #2C51D1

Accessibility & contrast

On white

13.26

#172A6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#172A6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A6C

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A6C	#FFFFFF	#000000	##FFFFFF
##172A6C	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00346E

Deuteranopia (green-blind)

#002C6B

Tritanopia (blue-blind)

#003A46

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172a6c;
/* rgb */ color: rgb(23, 42, 108);
/* oklch */ color: oklch(31.5% 0.117 267.0);

Tailwind

colors: {
  custom: {
    50: '#626397',
    500: '#172a6c',
    950: '#000000',
  },
}

SCSS

$custom: #172a6c;
$custom-light: #626397;
$custom-dark: #000000;

JSON

{
  "hex": "#172a6c",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 108
  },
  "hsl": {
    "h": 226.588,
    "s": 64.885,
    "l": 25.686
  },
  "oklch": {
    "l": 0.31482,
    "c": 0.11746,
    "h": 267
  },
  "luminance": 0.02921
}

Semantic roles & 50–950 ramp

primary

#172A6C

secondary

#A28B3D

accent

#C240E8

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #172A6C

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

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