#172C5E#172C5E

#172C5E is a dark, moderate blue. Relative luminance 0.028; OKLCH L 30.7% C 0.093 H 264.4°. Best body text is #FFFFFF at 13.48:1 contrast (WCAG AA passes).

Color values

HEX	#172C5E
RGB	rgb(23, 44, 94)
HSL	hsl(222, 61%, 23%)
HSV	hsv(222, 76%, 37%)
CMYK	cmyk(75.5%, 53.2%, 0%, 63.1%)
CIE-LAB	lab(19.19, 11.01, -32.35)
CIE-LCH	lch(19.19, 34.17, 288.79°)
OKLab	oklab(30.72% -0.0091 -0.0929)
OKLCH	oklch(30.72% 0.093 264.4)
XYZ	xyz(3.2737, 2.7913, 10.9538)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172C5E #5E4917

analogous

#174F5E #172C5E #26175E

triadic

#172C5E #5E172C #2C5E17

tetradic

#172C5E #5E174F #5E4917 #175E26

square

#172C5E #5E174F #5E4917 #175E26

split-complementary

#172C5E #5E2617 #4F5E17

monochromatic

#060C19 #0B152D #172C5E #23438F #2F5AC0

Accessibility & contrast

On white

13.48

#172C5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#172C5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172C5E

13.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172C5E	#FFFFFF	#000000	##FFFFFF
##172C5E	1.00	13.48	1.56	13.48
#FFFFFF	13.48	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F3260

Deuteranopia (green-blind)

#002B5D

Tritanopia (blue-blind)

#003840

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #172c5e;
/* rgb */ color: rgb(23, 44, 94);
/* oklch */ color: oklch(30.7% 0.093 264.4);

Tailwind

colors: {
  custom: {
    50: '#5e648c',
    500: '#172c5e',
    950: '#000000',
  },
}

SCSS

$custom: #172c5e;
$custom-light: #5e648c;
$custom-dark: #000000;

JSON

{
  "hex": "#172c5e",
  "rgb": {
    "r": 23,
    "g": 44,
    "b": 94
  },
  "hsl": {
    "h": 222.254,
    "s": 60.684,
    "l": 22.941
  },
  "oklch": {
    "l": 0.30719,
    "c": 0.09331,
    "h": 264.4
  },
  "luminance": 0.02792
}

Semantic roles & 50–950 ramp

primary

#172C5E

secondary

#957B3C

accent

#B544E4

background

#F5F5F8

surface

#EAEAF0

border

#C6C6CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #172C5E

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

Preview Lab → · Contrast checker → · Palette generator →