#171AA0#171AA0

#171AA0 is a dark, highly saturated blue. Relative luminance 0.035; OKLCH L 34.6% C 0.203 H 268.5°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#171AA0
RGB	rgb(23, 26, 160)
HSL	hsl(239, 75%, 36%)
HSV	hsv(239, 86%, 63%)
CMYK	cmyk(85.6%, 83.8%, 0%, 37.3%)
CIE-LAB	lab(21.79, 47.34, -69.92)
CIE-LCH	lch(21.79, 84.44, 304.10°)
OKLab	oklab(34.64% -0.0053 -0.2025)
OKLCH	oklch(34.64% 0.203 268.5)
XYZ	xyz(7.0657, 3.4581, 33.5460)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171AA0 #A09D17

analogous

#175EA0 #171AA0 #5817A0

triadic

#171AA0 #A0171A #1AA017

tetradic

#171AA0 #A0175E #A09D17 #17A058

square

#171AA0 #A0175E #A09D17 #17A058

split-complementary

#171AA0 #A05817 #5EA017

monochromatic

#080935 #0F116A #171AA0 #1F23D6 #4C4FE5

Accessibility & contrast

On white

12.41

#171AA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#171AA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171AA0

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171AA0	#FFFFFF	#000000	##FFFFFF
##171AA0	1.00	12.41	1.69	12.41
#FFFFFF	12.41	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA4

Deuteranopia (green-blind)

#002D9E

Tritanopia (blue-blind)

#00465F

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #171aa0;
/* rgb */ color: rgb(23, 26, 160);
/* oklch */ color: oklch(34.6% 0.203 268.5);

Tailwind

colors: {
  custom: {
    50: '#725bbe',
    500: '#171aa0',
    950: '#000000',
  },
}

SCSS

$custom: #171aa0;
$custom-light: #725bbe;
$custom-dark: #000000;

JSON

{
  "hex": "#171aa0",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 160
  },
  "hsl": {
    "h": 238.686,
    "s": 74.863,
    "l": 35.882
  },
  "oklch": {
    "l": 0.34637,
    "c": 0.20254,
    "h": 268.5
  },
  "luminance": 0.03459
}

Semantic roles & 50–950 ramp

primary

#171AA0

secondary

#C7C44C

accent

#ED36F1

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #171AA0

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

Preview Lab → · Contrast checker → · Palette generator →