#171F6D#171F6D

#171F6D is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.4% C 0.133 H 270.7°. Best body text is #FFFFFF at 14.45:1 contrast (WCAG AA passes).

Color values

HEX	#171F6D
RGB	rgb(23, 31, 109)
HSL	hsl(234, 65%, 26%)
HSV	hsv(234, 79%, 43%)
CMYK	cmyk(78.9%, 71.6%, 0%, 57.3%)
CIE-LAB	lab(16.82, 26.47, -46.03)
CIE-LCH	lch(16.82, 53.10, 299.90°)
OKLab	oklab(29.38% 0.0016 -0.1332)
OKLCH	oklch(29.38% 0.133 270.7)
XYZ	xyz(3.6027, 2.2659, 14.7125)
Luminance	0.0227 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171F6D #6D6517

analogous

#174A6D #171F6D #3A176D

triadic

#171F6D #6D171F #1F6D17

tetradic

#171F6D #6D174A #6D6517 #176D3A

square

#171F6D #6D174A #6D6517 #176D3A

split-complementary

#171F6D #6D3A17 #4A6D17

monochromatic

#050719 #0C113A #171F6D #222DA0 #2C3CD2

Accessibility & contrast

On white

14.45

#171F6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#171F6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171F6D

14.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171F6D	#FFFFFF	#000000	##FFFFFF
##171F6D	1.00	14.45	1.45	14.45
#FFFFFF	14.45	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E6F

Deuteranopia (green-blind)

#00256C

Tritanopia (blue-blind)

#003443

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #171f6d;
/* rgb */ color: rgb(23, 31, 109);
/* oklch */ color: oklch(29.4% 0.133 270.7);

Tailwind

colors: {
  custom: {
    50: '#645b98',
    500: '#171f6d',
    950: '#000000',
  },
}

SCSS

$custom: #171f6d;
$custom-light: #645b98;
$custom-dark: #000000;

JSON

{
  "hex": "#171f6d",
  "rgb": {
    "r": 23,
    "g": 31,
    "b": 109
  },
  "hsl": {
    "h": 234.419,
    "s": 65.152,
    "l": 25.882
  },
  "oklch": {
    "l": 0.29375,
    "c": 0.13321,
    "h": 270.7
  },
  "luminance": 0.02266
}

Semantic roles & 50–950 ramp

primary

#171F6D

secondary

#A3993D

accent

#D840E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #171F6D

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

Preview Lab → · Contrast checker → · Palette generator →