#171A6F#171A6F

#171A6F is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.7% C 0.142 H 271.7°. Best body text is #FFFFFF at 14.85:1 contrast (WCAG AA passes).

Color values

HEX	#171A6F
RGB	rgb(23, 26, 111)
HSL	hsl(238, 66%, 26%)
HSV	hsv(238, 79%, 44%)
CMYK	cmyk(79.3%, 76.6%, 0%, 56.5%)
CIE-LAB	lab(15.84, 30.53, -48.96)
CIE-LCH	lch(15.84, 57.69, 301.95°)
OKLab	oklab(28.73% 0.0041 -0.1417)
OKLCH	oklch(28.73% 0.142 271.7)
XYZ	xyz(3.5910, 2.0683, 15.2458)
Luminance	0.0207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A6F #6F6C17

analogous

#17466F #171A6F #40176F

triadic

#171A6F #6F171A #1A6F17

tetradic

#171A6F #6F1746 #6F6C17 #176F40

square

#171A6F #6F1746 #6F6C17 #176F40

split-complementary

#171A6F #6F4017 #466F17

monochromatic

#050619 #0C0E3C #171A6F #2226A2 #2D33D3

Accessibility & contrast

On white

14.85

#171A6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#171A6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A6F

14.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A6F	#FFFFFF	#000000	##FFFFFF
##171A6F	1.00	14.85	1.41	14.85
#FFFFFF	14.85	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C71

Deuteranopia (green-blind)

#00236D

Tritanopia (blue-blind)

#003243

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #171a6f;
/* rgb */ color: rgb(23, 26, 111);
/* oklch */ color: oklch(28.7% 0.142 271.7);

Tailwind

colors: {
  custom: {
    50: '#655799',
    500: '#171a6f',
    950: '#000000',
  },
}

SCSS

$custom: #171a6f;
$custom-light: #655799;
$custom-dark: #000000;

JSON

{
  "hex": "#171a6f",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 111
  },
  "hsl": {
    "h": 237.955,
    "s": 65.672,
    "l": 26.275
  },
  "oklch": {
    "l": 0.28733,
    "c": 0.14177,
    "h": 271.7
  },
  "luminance": 0.02069
}

Semantic roles & 50–950 ramp

primary

#171A6F

secondary

#A5A13D

accent

#E33FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #171A6F

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

Preview Lab → · Contrast checker → · Palette generator →