#171F44#171F44

#171F44 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.5% C 0.070 H 271.4°. Best body text is #FFFFFF at 15.96:1 contrast (WCAG AA passes).

Color values

HEX	#171F44
RGB	rgb(23, 31, 68)
HSL	hsl(229, 49%, 18%)
HSV	hsv(229, 66%, 27%)
CMYK	cmyk(66.2%, 54.4%, 0%, 73.3%)
CIE-LAB	lab(13.10, 9.93, -24.52)
CIE-LCH	lch(13.10, 26.45, 292.04°)
OKLab	oklab(25.46% 0.0018 -0.07)
OKLCH	oklch(25.46% 0.07 271.4)
XYZ	xyz(1.8864, 1.5793, 5.6732)
Luminance	0.0158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171F44 #443C17

analogous

#173544 #171F44 #251744

triadic

#171F44 #44171F #1F4417

tetradic

#171F44 #441735 #443C17 #174425

square

#171F44 #441735 #443C17 #174425

split-complementary

#171F44 #442517 #354417

monochromatic

#080A17 #080A17 #171F44 #263472 #36499F

Accessibility & contrast

On white

15.96

#171F44 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#171F44 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171F44

15.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171F44	#FFFFFF	#000000	##FFFFFF
##171F44	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)

#0D2445

Deuteranopia (green-blind)

#062043

Tritanopia (blue-blind)

#00272E

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #171f44;
/* rgb */ color: rgb(23, 31, 68);
/* oklch */ color: oklch(25.5% 0.070 271.4);

Tailwind

colors: {
  custom: {
    50: '#595a78',
    500: '#171f44',
    950: '#000000',
  },
}

SCSS

$custom: #171f44;
$custom-light: #595a78;
$custom-dark: #000000;

JSON

{
  "hex": "#171f44",
  "rgb": {
    "r": 23,
    "g": 31,
    "b": 68
  },
  "hsl": {
    "h": 229.333,
    "s": 49.451,
    "l": 17.843
  },
  "oklch": {
    "l": 0.2546,
    "c": 0.07007,
    "h": 271.4
  },
  "luminance": 0.01579
}

Semantic roles & 50–950 ramp

primary

#171F44

secondary

#7B703C

accent

#C04FD9

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040309

muted

#79787B

Preview Lab

Preview with #171F44

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

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