#171F48#171F48

#171F48 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.8% C 0.077 H 271.7°. Best body text is #FFFFFF at 15.84:1 contrast (WCAG AA passes).

Color values

HEX	#171F48
RGB	rgb(23, 31, 72)
HSL	hsl(230, 52%, 19%)
HSV	hsv(230, 68%, 28%)
CMYK	cmyk(68.1%, 56.9%, 0%, 71.8%)
CIE-LAB	lab(13.41, 11.56, -26.80)
CIE-LCH	lch(13.41, 29.19, 293.33°)
OKLab	oklab(25.79% 0.0023 -0.0768)
OKLCH	oklch(25.79% 0.077 271.7)
XYZ	xyz(2.0126, 1.6298, 6.3382)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171F48 #484017

analogous

#173748 #171F48 #271748

triadic

#171F48 #48171F #1F4817

tetradic

#171F48 #481737 #484017 #174827

square

#171F48 #481737 #484017 #174827

split-complementary

#171F48 #482717 #374817

monochromatic

#070A17 #080B1A #171F48 #263376 #3547A5

Accessibility & contrast

On white

15.84

#171F48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#171F48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171F48

15.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171F48	#FFFFFF	#000000	##FFFFFF
##171F48	1.00	15.84	1.33	15.84
#FFFFFF	15.84	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#082549

Deuteranopia (green-blind)

#012047

Tritanopia (blue-blind)

#002830

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #171f48;
/* rgb */ color: rgb(23, 31, 72);
/* oklch */ color: oklch(25.8% 0.077 271.7);

Tailwind

colors: {
  custom: {
    50: '#5a5a7b',
    500: '#171f48',
    950: '#000000',
  },
}

SCSS

$custom: #171f48;
$custom-light: #5a5a7b;
$custom-dark: #000000;

JSON

{
  "hex": "#171f48",
  "rgb": {
    "r": 23,
    "g": 31,
    "b": 72
  },
  "hsl": {
    "h": 230.204,
    "s": 51.579,
    "l": 18.627
  },
  "oklch": {
    "l": 0.25791,
    "c": 0.0768,
    "h": 271.7
  },
  "luminance": 0.0163
}

Semantic roles & 50–950 ramp

primary

#171F48

secondary

#7F743C

accent

#C44DDB

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #171F48

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

Preview Lab → · Contrast checker → · Palette generator →