#172A65#172A65

#172A65 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 30.9% C 0.107 H 266.5°. Best body text is #FFFFFF at 13.50:1 contrast (WCAG AA passes).

Color values

HEX	#172A65
RGB	rgb(23, 42, 101)
HSL	hsl(225, 63%, 24%)
HSV	hsv(225, 77%, 40%)
CMYK	cmyk(77.2%, 58.4%, 0%, 60.4%)
CIE-LAB	lab(19.13, 15.39, -37.05)
CIE-LCH	lch(19.13, 40.12, 292.56°)
OKLab	oklab(30.85% -0.0064 -0.1067)
OKLCH	oklch(30.85% 0.107 266.5)
XYZ	xyz(3.5295, 2.7773, 12.6595)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A65 #655217

analogous

#175165 #172A65 #2B1765

triadic

#172A65 #65172A #2A6517

tetradic

#172A65 #651751 #655217 #17652B

square

#172A65 #651751 #655217 #17652B

split-complementary

#172A65 #652B17 #516517

monochromatic

#060A19 #0C1533 #172A65 #223F97 #2E53C9

Accessibility & contrast

On white

13.50

#172A65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#172A65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A65

13.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A65	#FFFFFF	#000000	##FFFFFF
##172A65	1.00	13.50	1.56	13.50
#FFFFFF	13.50	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003267

Deuteranopia (green-blind)

#002B64

Tritanopia (blue-blind)

#003843

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #172a65;
/* rgb */ color: rgb(23, 42, 101);
/* oklch */ color: oklch(30.9% 0.107 266.5);

Tailwind

colors: {
  custom: {
    50: '#606391',
    500: '#172a65',
    950: '#000000',
  },
}

SCSS

$custom: #172a65;
$custom-light: #606391;
$custom-dark: #000000;

JSON

{
  "hex": "#172a65",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 101
  },
  "hsl": {
    "h": 225.385,
    "s": 62.903,
    "l": 24.314
  },
  "oklch": {
    "l": 0.3085,
    "c": 0.10692,
    "h": 266.5
  },
  "luminance": 0.02778
}

Semantic roles & 50–950 ramp

primary

#172A65

secondary

#9B843C

accent

#BE42E6

background

#F6F5F9

surface

#EBEAF1

border

#C6C6CB

text

#05050D

muted

#7A797E

Preview Lab

Preview with #172A65

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

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