#171E89#171E89

#171E89 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.4% C 0.171 H 269.4°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#171E89
RGB	rgb(23, 30, 137)
HSL	hsl(236, 71%, 31%)
HSV	hsv(236, 83%, 54%)
CMYK	cmyk(83.2%, 78.1%, 0%, 46.3%)
CIE-LAB	lab(19.71, 37.50, -59.16)
CIE-LCH	lch(19.71, 70.04, 302.37°)
OKLab	oklab(32.36% -0.0019 -0.1714)
OKLCH	oklch(32.36% 0.171 269.4)
XYZ	xyz(5.3314, 2.9162, 23.9440)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E89 #898217

analogous

#175789 #171E89 #491789

triadic

#171E89 #89171E #1E8917

tetradic

#171E89 #891757 #898217 #178949

square

#171E89 #891757 #898217 #178949

split-complementary

#171E89 #894917 #578917

monochromatic

#050720 #0E1355 #171E89 #2029BD #3C46DE

Accessibility & contrast

On white

13.26

#171E89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#171E89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E89

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E89	#FFFFFF	#000000	##FFFFFF
##171E89	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358C

Deuteranopia (green-blind)

#002A87

Tritanopia (blue-blind)

#003E52

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #171e89;
/* rgb */ color: rgb(23, 30, 137);
/* oklch */ color: oklch(32.4% 0.171 269.4);

Tailwind

colors: {
  custom: {
    50: '#6c5bad',
    500: '#171e89',
    950: '#000000',
  },
}

SCSS

$custom: #171e89;
$custom-light: #6c5bad;
$custom-dark: #000000;

JSON

{
  "hex": "#171e89",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 137
  },
  "hsl": {
    "h": 236.316,
    "s": 71.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32363,
    "c": 0.1714,
    "h": 269.4
  },
  "luminance": 0.02917
}

Semantic roles & 50–950 ramp

primary

#171E89

secondary

#BDB53F

accent

#E33AEE

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #171E89

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

Preview Lab → · Contrast checker → · Palette generator →