#172E5D#172E5D

#172E5D is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.1% C 0.089 H 262.7°. Best body text is #FFFFFF at 13.25:1 contrast (WCAG AA passes).

Color values

HEX	#172E5D
RGB	rgb(23, 46, 93)
HSL	hsl(220, 60%, 23%)
HSV	hsv(220, 75%, 36%)
CMYK	cmyk(75.3%, 50.5%, 0%, 63.5%)
CIE-LAB	lab(19.75, 9.13, -30.79)
CIE-LCH	lch(19.75, 32.12, 286.51°)
OKLab	oklab(31.12% -0.0112 -0.0882)
OKLCH	oklch(31.12% 0.089 262.7)
XYZ	xyz(3.3054, 2.9261, 10.7444)
Luminance	0.0293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E5D #5D4617

analogous

#17515D #172E5D #23175D

triadic

#172E5D #5D172E #2E5D17

tetradic

#172E5D #5D1751 #5D4617 #175D23

square

#172E5D #5D1751 #5D4617 #175D23

split-complementary

#172E5D #5D2317 #515D17

monochromatic

#060C19 #0B162C #172E5D #23468E #2F5FBF

Accessibility & contrast

On white

13.25

#172E5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#172E5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E5D

13.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E5D	#FFFFFF	#000000	##FFFFFF
##172E5D	1.00	13.25	1.59	13.25
#FFFFFF	13.25	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15335F

Deuteranopia (green-blind)

#062D5C

Tritanopia (blue-blind)

#003941

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172e5d;
/* rgb */ color: rgb(23, 46, 93);
/* oklch */ color: oklch(31.1% 0.089 262.7);

Tailwind

colors: {
  custom: {
    50: '#5e668b',
    500: '#172e5d',
    950: '#000000',
  },
}

SCSS

$custom: #172e5d;
$custom-light: #5e668b;
$custom-dark: #000000;

JSON

{
  "hex": "#172e5d",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 93
  },
  "hsl": {
    "h": 220.286,
    "s": 60.345,
    "l": 22.745
  },
  "oklch": {
    "l": 0.31122,
    "c": 0.08896,
    "h": 262.7
  },
  "luminance": 0.02926
}

Semantic roles & 50–950 ramp

primary

#172E5D

secondary

#94773C

accent

#AF44E3

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05050C

muted

#797A7D

Preview Lab

Preview with #172E5D

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

Preview Lab → · Contrast checker → · Palette generator →