#171E48#171E48

#171E48 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.6% C 0.078 H 272.5°. Best body text is #FFFFFF at 15.96:1 contrast (WCAG AA passes).

Color values

HEX	#171E48
RGB	rgb(23, 30, 72)
HSL	hsl(231, 52%, 19%)
HSV	hsv(231, 68%, 28%)
CMYK	cmyk(68.1%, 58.3%, 0%, 71.8%)
CIE-LAB	lab(13.10, 12.31, -27.31)
CIE-LCH	lch(13.10, 29.96, 294.27°)
OKLab	oklab(25.56% 0.0035 -0.0783)
OKLCH	oklch(25.56% 0.078 272.5)
XYZ	xyz(1.9869, 1.5784, 6.3296)
Luminance	0.0158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E48 #484117

analogous

#173648 #171E48 #281748

triadic

#171E48 #48171E #1E4817

tetradic

#171E48 #481736 #484117 #174828

square

#171E48 #481736 #484117 #174828

split-complementary

#171E48 #482817 #364817

monochromatic

#070A17 #080B1A #171E48 #263176 #3545A5

Accessibility & contrast

On white

15.96

#171E48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#171E48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E48

15.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E48	#FFFFFF	#000000	##FFFFFF
##171E48	1.00	15.96	1.32	15.96
#FFFFFF	15.96	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#062449

Deuteranopia (green-blind)

#002047

Tritanopia (blue-blind)

#00282F

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #171e48;
/* rgb */ color: rgb(23, 30, 72);
/* oklch */ color: oklch(25.6% 0.078 272.5);

Tailwind

colors: {
  custom: {
    50: '#5a597b',
    500: '#171e48',
    950: '#000000',
  },
}

SCSS

$custom: #171e48;
$custom-light: #5a597b;
$custom-dark: #000000;

JSON

{
  "hex": "#171e48",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 72
  },
  "hsl": {
    "h": 231.429,
    "s": 51.579,
    "l": 18.627
  },
  "oklch": {
    "l": 0.25555,
    "c": 0.07834,
    "h": 272.5
  },
  "luminance": 0.01579
}

Semantic roles & 50–950 ramp

primary

#171E48

secondary

#7F753C

accent

#C74DDB

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #171E48

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

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