#172D65#172D65

#172D65 is a dark, moderate blue. Relative luminance 0.030; OKLCH L 31.5% C 0.103 H 264.9°. Best body text is #FFFFFF at 13.13:1 contrast (WCAG AA passes).

Color values

HEX	#172D65
RGB	rgb(23, 45, 101)
HSL	hsl(223, 63%, 24%)
HSV	hsv(223, 77%, 40%)
CMYK	cmyk(77.2%, 55.4%, 0%, 60.4%)
CIE-LAB	lab(20.04, 13.21, -35.58)
CIE-LCH	lch(20.04, 37.95, 290.36°)
OKLab	oklab(31.54% -0.0091 -0.1023)
OKLCH	oklch(31.54% 0.103 264.9)
XYZ	xyz(3.6399, 2.9981, 12.6963)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172D65 #654F17

analogous

#175465 #172D65 #281765

triadic

#172D65 #65172D #2D6517

tetradic

#172D65 #651754 #654F17 #176528

square

#172D65 #651754 #654F17 #176528

split-complementary

#172D65 #652817 #546517

monochromatic

#060B19 #0C1733 #172D65 #224397 #2E59C9

Accessibility & contrast

On white

13.13

#172D65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#172D65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172D65

13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172D65	#FFFFFF	#000000	##FFFFFF
##172D65	1.00	13.13	1.60	13.13
#FFFFFF	13.13	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#073467

Deuteranopia (green-blind)

#002D64

Tritanopia (blue-blind)

#003A44

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172d65;
/* rgb */ color: rgb(23, 45, 101);
/* oklch */ color: oklch(31.5% 0.103 264.9);

Tailwind

colors: {
  custom: {
    50: '#606591',
    500: '#172d65',
    950: '#000000',
  },
}

SCSS

$custom: #172d65;
$custom-light: #606591;
$custom-dark: #000000;

JSON

{
  "hex": "#172d65",
  "rgb": {
    "r": 23,
    "g": 45,
    "b": 101
  },
  "hsl": {
    "h": 223.077,
    "s": 62.903,
    "l": 24.314
  },
  "oklch": {
    "l": 0.31536,
    "c": 0.10276,
    "h": 264.9
  },
  "luminance": 0.02999
}

Semantic roles & 50–950 ramp

primary

#172D65

secondary

#9B813C

accent

#B842E6

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#05050D

muted

#7A7A7E

Preview Lab

Preview with #172D65

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

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