#172140#172140

#172140 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.6% C 0.060 H 268.5°. Best body text is #FFFFFF at 15.81:1 contrast (WCAG AA passes).

Color values

HEX	#172140
RGB	rgb(23, 33, 64)
HSL	hsl(225, 47%, 17%)
HSV	hsv(225, 64%, 25%)
CMYK	cmyk(64.1%, 48.4%, 0%, 74.9%)
CIE-LAB	lab(13.47, 6.79, -21.14)
CIE-LCH	lch(13.47, 22.20, 287.81°)
OKLab	oklab(25.65% -0.0016 -0.0601)
OKLCH	oklch(25.65% 0.06 268.5)
XYZ	xyz(1.8223, 1.6399, 5.0700)
Luminance	0.0164 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172140 #403617

analogous

#173640 #172140 #221740

triadic

#172140 #401721 #214017

tetradic

#172140 #401736 #403617 #174022

square

#172140 #401736 #403617 #174022

split-complementary

#172140 #402217 #364017

monochromatic

#080C17 #080C17 #172140 #27386D #374F9A

Accessibility & contrast

On white

15.81

#172140 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#172140 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172140

15.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172140	#FFFFFF	#000000	##FFFFFF
##172140	1.00	15.81	1.33	15.81
#FFFFFF	15.81	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#142441

Deuteranopia (green-blind)

#0E213F

Tritanopia (blue-blind)

#01282D

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #172140;
/* rgb */ color: rgb(23, 33, 64);
/* oklch */ color: oklch(25.6% 0.060 268.5);

Tailwind

colors: {
  custom: {
    50: '#585b75',
    500: '#172140',
    950: '#000000',
  },
}

SCSS

$custom: #172140;
$custom-light: #585b75;
$custom-dark: #000000;

JSON

{
  "hex": "#172140",
  "rgb": {
    "r": 23,
    "g": 33,
    "b": 64
  },
  "hsl": {
    "h": 225.366,
    "s": 47.126,
    "l": 17.059
  },
  "oklch": {
    "l": 0.25648,
    "c": 0.06012,
    "h": 268.5
  },
  "luminance": 0.0164
}

Semantic roles & 50–950 ramp

primary

#172140

secondary

#77693C

accent

#B651D7

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #172140

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

Preview Lab → · Contrast checker → · Palette generator →