#172143#172143

#172143 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 25.9% C 0.065 H 269.1°. Best body text is #FFFFFF at 15.73:1 contrast (WCAG AA passes).

Color values

HEX	#172143
RGB	rgb(23, 33, 67)
HSL	hsl(226, 49%, 18%)
HSV	hsv(226, 66%, 26%)
CMYK	cmyk(65.7%, 50.7%, 0%, 73.7%)
CIE-LAB	lab(13.68, 8.01, -22.90)
CIE-LCH	lch(13.68, 24.26, 289.27°)
OKLab	oklab(25.87% -0.001 -0.0653)
OKLCH	oklch(25.87% 0.065 269.1)
XYZ	xyz(1.9100, 1.6750, 5.5318)
Luminance	0.0168 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172143 #433917

analogous

#173743 #172143 #231743

triadic

#172143 #431721 #214317

tetradic

#172143 #431737 #433917 #174323

square

#172143 #431737 #433917 #174323

split-complementary

#172143 #432317 #374317

monochromatic

#080B17 #080B17 #172143 #273771 #364E9E

Accessibility & contrast

On white

15.73

#172143 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#172143 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172143

15.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172143	#FFFFFF	#000000	##FFFFFF
##172143	1.00	15.73	1.34	15.73
#FFFFFF	15.73	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#112544

Deuteranopia (green-blind)

#0B2142

Tritanopia (blue-blind)

#00292E

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #172143;
/* rgb */ color: rgb(23, 33, 67);
/* oklch */ color: oklch(25.9% 0.065 269.1);

Tailwind

colors: {
  custom: {
    50: '#595b77',
    500: '#172143',
    950: '#000000',
  },
}

SCSS

$custom: #172143;
$custom-light: #595b77;
$custom-dark: #000000;

JSON

{
  "hex": "#172143",
  "rgb": {
    "r": 23,
    "g": 33,
    "b": 67
  },
  "hsl": {
    "h": 226.364,
    "s": 48.889,
    "l": 17.647
  },
  "oklch": {
    "l": 0.25875,
    "c": 0.06528,
    "h": 269.1
  },
  "luminance": 0.01675
}

Semantic roles & 50–950 ramp

primary

#172143

secondary

#7A6C3C

accent

#B94FD8

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040408

muted

#79797B

Preview Lab

Preview with #172143

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

Preview Lab → · Contrast checker → · Palette generator →