#171D48#171D48

#171D48 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.3% C 0.080 H 273.3°. Best body text is #FFFFFF at 16.08:1 contrast (WCAG AA passes).

Color values

HEX	#171D48
RGB	rgb(23, 29, 72)
HSL	hsl(233, 52%, 19%)
HSV	hsv(233, 68%, 28%)
CMYK	cmyk(68.1%, 59.7%, 0%, 71.8%)
CIE-LAB	lab(12.79, 13.07, -27.81)
CIE-LCH	lch(12.79, 30.72, 295.17°)
OKLab	oklab(25.32% 0.0046 -0.0797)
OKLCH	oklch(25.32% 0.08 273.3)
XYZ	xyz(1.9620, 1.5286, 6.3213)
Luminance	0.0153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171D48 #484217

analogous

#173548 #171D48 #291748

triadic

#171D48 #48171D #1D4817

tetradic

#171D48 #481735 #484217 #174829

square

#171D48 #481735 #484217 #174829

split-complementary

#171D48 #482917 #354817

monochromatic

#070917 #080A1A #171D48 #263076 #3542A5

Accessibility & contrast

On white

16.08

#171D48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#171D48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171D48

16.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171D48	#FFFFFF	#000000	##FFFFFF
##171D48	1.00	16.08	1.31	16.08
#FFFFFF	16.08	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03234A

Deuteranopia (green-blind)

#001F47

Tritanopia (blue-blind)

#00272F

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #171d48;
/* rgb */ color: rgb(23, 29, 72);
/* oklch */ color: oklch(25.3% 0.080 273.3);

Tailwind

colors: {
  custom: {
    50: '#5a587b',
    500: '#171d48',
    950: '#000000',
  },
}

SCSS

$custom: #171d48;
$custom-light: #5a587b;
$custom-dark: #000000;

JSON

{
  "hex": "#171d48",
  "rgb": {
    "r": 23,
    "g": 29,
    "b": 72
  },
  "hsl": {
    "h": 232.653,
    "s": 51.579,
    "l": 18.627
  },
  "oklch": {
    "l": 0.25322,
    "c": 0.07988,
    "h": 273.3
  },
  "luminance": 0.01529
}

Semantic roles & 50–950 ramp

primary

#171D48

secondary

#7F773C

accent

#CA4DDB

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #171D48

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

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