#171786#171786

#171786 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.1% C 0.174 H 270.2°. Best body text is #FFFFFF at 13.97:1 contrast (WCAG AA passes).

Color values

HEX	#171786
RGB	rgb(23, 23, 134)
HSL	hsl(240, 71%, 31%)
HSV	hsv(240, 83%, 53%)
CMYK	cmyk(82.8%, 82.8%, 0%, 47.5%)
CIE-LAB	lab(17.99, 40.36, -60.12)
CIE-LCH	lch(17.99, 72.41, 303.88°)
OKLab	oklab(31.05% 0.0006 -0.1741)
OKLCH	oklch(31.05% 0.174 270.2)
XYZ	xyz(4.9614, 2.5156, 22.7737)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171786 #868617

analogous

#174E86 #171786 #4E1786

triadic

#171786 #861717 #178617

tetradic

#171786 #86174E #868617 #17864E

square

#171786 #86174E #868617 #17864E

split-complementary

#171786 #864E17 #4E8617

monochromatic

#05051E #0E0E52 #171786 #2020BA #3A3ADD

Accessibility & contrast

On white

13.97

#171786 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#171786 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171786

13.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171786	#FFFFFF	#000000	##FFFFFF
##171786	1.00	13.97	1.50	13.97
#FFFFFF	13.97	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003289

Deuteranopia (green-blind)

#002684

Tritanopia (blue-blind)

#003A4F

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #171786;
/* rgb */ color: rgb(23, 23, 134);
/* oklch */ color: oklch(31.1% 0.174 270.2);

Tailwind

colors: {
  custom: {
    50: '#6c57ab',
    500: '#171786',
    950: '#000000',
  },
}

SCSS

$custom: #171786;
$custom-light: #6c57ab;
$custom-dark: #000000;

JSON

{
  "hex": "#171786",
  "rgb": {
    "r": 23,
    "g": 23,
    "b": 134
  },
  "hsl": {
    "h": 240,
    "s": 70.701,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31052,
    "c": 0.17406,
    "h": 270.2
  },
  "luminance": 0.02516
}

Semantic roles & 50–950 ramp

primary

#171786

secondary

#BABA3F

accent

#ED3AED

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #171786

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

Preview Lab → · Contrast checker → · Palette generator →