#172F60#172F60

#172F60 is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.6% C 0.092 H 262.7°. Best body text is #FFFFFF at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#172F60
RGB	rgb(23, 47, 96)
HSL	hsl(220, 61%, 23%)
HSV	hsv(220, 76%, 38%)
CMYK	cmyk(76%, 51%, 0%, 62.4%)
CIE-LAB	lab(20.28, 9.65, -31.91)
CIE-LCH	lch(20.28, 33.34, 286.84°)
OKLab	oklab(31.6% -0.0117 -0.0915)
OKLCH	oklch(31.6% 0.092 262.7)
XYZ	xyz(3.4804, 3.0594, 11.4712)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F60 #604817

analogous

#175360 #172F60 #231760

triadic

#172F60 #60172F #2F6017

tetradic

#172F60 #601753 #604817 #176023

square

#172F60 #601753 #604817 #176023

split-complementary

#172F60 #602317 #536017

monochromatic

#060C19 #0B172F #172F60 #234791 #2F5FC3

Accessibility & contrast

On white

13.03

#172F60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#172F60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F60

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F60	#FFFFFF	#000000	##FFFFFF
##172F60	1.00	13.03	1.61	13.03
#FFFFFF	13.03	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#153462

Deuteranopia (green-blind)

#032E5F

Tritanopia (blue-blind)

#003B42

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #172f60;
/* rgb */ color: rgb(23, 47, 96);
/* oklch */ color: oklch(31.6% 0.092 262.7);

Tailwind

colors: {
  custom: {
    50: '#5f678d',
    500: '#172f60',
    950: '#000000',
  },
}

SCSS

$custom: #172f60;
$custom-light: #5f678d;
$custom-dark: #000000;

JSON

{
  "hex": "#172f60",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 96
  },
  "hsl": {
    "h": 220.274,
    "s": 61.345,
    "l": 23.333
  },
  "oklch": {
    "l": 0.31601,
    "c": 0.09226,
    "h": 262.7
  },
  "luminance": 0.0306
}

Semantic roles & 50–950 ramp

primary

#172F60

secondary

#97793C

accent

#AF43E4

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #172F60

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

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