#171D6E#171D6E

#171D6E is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.1% C 0.137 H 271.1°. Best body text is #FFFFFF at 14.61:1 contrast (WCAG AA passes).

Color values

HEX	#171D6E
RGB	rgb(23, 29, 110)
HSL	hsl(236, 65%, 26%)
HSV	hsv(236, 79%, 43%)
CMYK	cmyk(79.1%, 73.6%, 0%, 56.9%)
CIE-LAB	lab(16.44, 28.20, -47.33)
CIE-LCH	lch(16.44, 55.09, 300.79°)
OKLab	oklab(29.13% 0.0027 -0.137)
OKLCH	oklch(29.13% 0.137 271.1)
XYZ	xyz(3.6062, 2.1863, 14.9808)
Luminance	0.0219 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171D6E #6E6817

analogous

#17486E #171D6E #3C176E

triadic

#171D6E #6E171D #1D6E17

tetradic

#171D6E #6E1748 #6E6817 #176E3C

square

#171D6E #6E1748 #6E6817 #176E3C

split-complementary

#171D6E #6E3C17 #486E17

monochromatic

#050719 #0C103B #171D6E #222AA1 #2C38D3

Accessibility & contrast

On white

14.61

#171D6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#171D6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171D6E

14.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171D6E	#FFFFFF	#000000	##FFFFFF
##171D6E	1.00	14.61	1.44	14.61
#FFFFFF	14.61	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D70

Deuteranopia (green-blind)

#00246D

Tritanopia (blue-blind)

#003443

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #171d6e;
/* rgb */ color: rgb(23, 29, 110);
/* oklch */ color: oklch(29.1% 0.137 271.1);

Tailwind

colors: {
  custom: {
    50: '#645999',
    500: '#171d6e',
    950: '#000000',
  },
}

SCSS

$custom: #171d6e;
$custom-light: #645999;
$custom-dark: #000000;

JSON

{
  "hex": "#171d6e",
  "rgb": {
    "r": 23,
    "g": 29,
    "b": 110
  },
  "hsl": {
    "h": 235.862,
    "s": 65.414,
    "l": 26.078
  },
  "oklch": {
    "l": 0.29126,
    "c": 0.137,
    "h": 271.1
  },
  "luminance": 0.02187
}

Semantic roles & 50–950 ramp

primary

#171D6E

secondary

#A49D3D

accent

#DD3FE8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #171D6E

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

Preview Lab → · Contrast checker → · Palette generator →