#172156#172156

#172156 is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.5% C 0.096 H 270.6°. Best body text is #FFFFFF at 15.13:1 contrast (WCAG AA passes).

Color values

HEX	#172156
RGB	rgb(23, 33, 86)
HSL	hsl(230, 58%, 21%)
HSV	hsv(230, 73%, 34%)
CMYK	cmyk(73.3%, 61.6%, 0%, 66.3%)
CIE-LAB	lab(15.18, 15.81, -33.50)
CIE-LCH	lch(15.18, 37.04, 295.27°)
OKLab	oklab(27.49% 0.0011 -0.0964)
OKLCH	oklch(27.49% 0.096 270.6)
XYZ	xyz(2.5764, 1.9415, 9.0413)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172156 #564C17

analogous

#174156 #172156 #2D1756

triadic

#172156 #561721 #215617

tetradic

#172156 #561741 #564C17 #17562D

square

#172156 #561741 #564C17 #17562D

split-complementary

#172156 #562D17 #415617

monochromatic

#060918 #0A0E26 #172156 #243486 #3146B7

Accessibility & contrast

On white

15.13

#172156 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#172156 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172156

15.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172156	#FFFFFF	#000000	##FFFFFF
##172156	1.00	15.13	1.39	15.13
#FFFFFF	15.13	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002958

Deuteranopia (green-blind)

#002355

Tritanopia (blue-blind)

#002E37

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #172156;
/* rgb */ color: rgb(23, 33, 86);
/* oklch */ color: oklch(27.5% 0.096 270.6);

Tailwind

colors: {
  custom: {
    50: '#5d5c86',
    500: '#172156',
    950: '#000000',
  },
}

SCSS

$custom: #172156;
$custom-light: #5d5c86;
$custom-dark: #000000;

JSON

{
  "hex": "#172156",
  "rgb": {
    "r": 23,
    "g": 33,
    "b": 86
  },
  "hsl": {
    "h": 230.476,
    "s": 57.798,
    "l": 21.373
  },
  "oklch": {
    "l": 0.27485,
    "c": 0.09645,
    "h": 270.6
  },
  "luminance": 0.01942
}

Semantic roles & 50–950 ramp

primary

#172156

secondary

#8D803C

accent

#C947E1

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05040B

muted

#79797C

Preview Lab

Preview with #172156

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

Preview Lab → · Contrast checker → · Palette generator →