#172C65#172C65

#172C65 is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.3% C 0.104 H 265.5°. Best body text is #FFFFFF at 13.25:1 contrast (WCAG AA passes).

Color values

HEX	#172C65
RGB	rgb(23, 44, 101)
HSL	hsl(224, 63%, 24%)
HSV	hsv(224, 77%, 40%)
CMYK	cmyk(77.2%, 56.4%, 0%, 60.4%)
CIE-LAB	lab(19.73, 13.93, -36.07)
CIE-LCH	lch(19.73, 38.67, 291.12°)
OKLab	oklab(31.31% -0.0082 -0.1038)
OKLCH	oklch(31.31% 0.104 265.5)
XYZ	xyz(3.6022, 2.9227, 12.6837)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172C65 #655017

analogous

#175365 #172C65 #291765

triadic

#172C65 #65172C #2C6517

tetradic

#172C65 #651753 #655017 #176529

square

#172C65 #651753 #655017 #176529

split-complementary

#172C65 #652917 #536517

monochromatic

#060B19 #0C1633 #172C65 #224297 #2E57C9

Accessibility & contrast

On white

13.25

#172C65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#172C65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172C65

13.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172C65	#FFFFFF	#000000	##FFFFFF
##172C65	1.00	13.25	1.58	13.25
#FFFFFF	13.25	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#043367

Deuteranopia (green-blind)

#002C64

Tritanopia (blue-blind)

#003A44

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172c65;
/* rgb */ color: rgb(23, 44, 101);
/* oklch */ color: oklch(31.3% 0.104 265.5);

Tailwind

colors: {
  custom: {
    50: '#606491',
    500: '#172c65',
    950: '#000000',
  },
}

SCSS

$custom: #172c65;
$custom-light: #606491;
$custom-dark: #000000;

JSON

{
  "hex": "#172c65",
  "rgb": {
    "r": 23,
    "g": 44,
    "b": 101
  },
  "hsl": {
    "h": 223.846,
    "s": 62.903,
    "l": 24.314
  },
  "oklch": {
    "l": 0.31305,
    "c": 0.10414,
    "h": 265.5
  },
  "luminance": 0.02923
}

Semantic roles & 50–950 ramp

primary

#172C65

secondary

#9B823C

accent

#BA42E6

background

#F6F5F9

surface

#EBEAF1

border

#C6C6CB

text

#05050D

muted

#7A797E

Preview Lab

Preview with #172C65

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

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