#172756#172756

#172756 is a dark, moderate blue. Relative luminance 0.023; OKLCH L 28.9% C 0.088 H 266.7°. Best body text is #FFFFFF at 14.37:1 contrast (WCAG AA passes).

Color values

HEX	#172756
RGB	rgb(23, 39, 86)
HSL	hsl(225, 58%, 21%)
HSV	hsv(225, 73%, 34%)
CMYK	cmyk(73.3%, 54.7%, 0%, 66.3%)
CIE-LAB	lab(17.01, 11.35, -30.53)
CIE-LCH	lch(17.01, 32.57, 290.40°)
OKLab	oklab(28.87% -0.005 -0.0876)
OKLCH	oklch(28.87% 0.088 266.7)
XYZ	xyz(2.7580, 2.3048, 9.1018)
Luminance	0.0231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172756 #564617

analogous

#174756 #172756 #271756

triadic

#172756 #561727 #275617

tetradic

#172756 #561747 #564617 #175627

square

#172756 #561747 #564617 #175627

split-complementary

#172756 #562717 #475617

monochromatic

#060B18 #0A1126 #172756 #243D86 #3153B7

Accessibility & contrast

On white

14.37

#172756 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#172756 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172756

14.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172756	#FFFFFF	#000000	##FFFFFF
##172756	1.00	14.37	1.46	14.37
#FFFFFF	14.37	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C2D58

Deuteranopia (green-blind)

#002755

Tritanopia (blue-blind)

#00323A

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #172756;
/* rgb */ color: rgb(23, 39, 86);
/* oklch */ color: oklch(28.9% 0.088 266.7);

Tailwind

colors: {
  custom: {
    50: '#5d6086',
    500: '#172756',
    950: '#000000',
  },
}

SCSS

$custom: #172756;
$custom-light: #5d6086;
$custom-dark: #000000;

JSON

{
  "hex": "#172756",
  "rgb": {
    "r": 23,
    "g": 39,
    "b": 86
  },
  "hsl": {
    "h": 224.762,
    "s": 57.798,
    "l": 21.373
  },
  "oklch": {
    "l": 0.28868,
    "c": 0.08775,
    "h": 266.7
  },
  "luminance": 0.02305
}

Semantic roles & 50–950 ramp

primary

#172756

secondary

#8D783C

accent

#BA47E1

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05040B

muted

#79797C

Preview Lab

Preview with #172756

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

Preview Lab → · Contrast checker → · Palette generator →