#171A89#171A89

#171A89 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.175 H 269.8°. Best body text is #FFFFFF at 13.59:1 contrast (WCAG AA passes).

Color values

HEX	#171A89
RGB	rgb(23, 26, 137)
HSL	hsl(238, 71%, 31%)
HSV	hsv(238, 83%, 54%)
CMYK	cmyk(83.2%, 81%, 0%, 46.3%)
CIE-LAB	lab(18.91, 39.77, -60.47)
CIE-LCH	lch(18.91, 72.37, 303.33°)
OKLab	oklab(31.81% -0.0007 -0.1751)
OKLCH	oklch(31.81% 0.175 269.8)
XYZ	xyz(5.2366, 2.7265, 23.9123)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A89 #898617

analogous

#175389 #171A89 #4D1789

triadic

#171A89 #89171A #1A8917

tetradic

#171A89 #891753 #898617 #17894D

square

#171A89 #891753 #898617 #17894D

split-complementary

#171A89 #894D17 #538917

monochromatic

#050620 #0E1055 #171A89 #2024BD #3C40DE

Accessibility & contrast

On white

13.59

#171A89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#171A89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A89

13.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A89	#FFFFFF	#000000	##FFFFFF
##171A89	1.00	13.59	1.55	13.59
#FFFFFF	13.59	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348C

Deuteranopia (green-blind)

#002887

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #171a89;
/* rgb */ color: rgb(23, 26, 137);
/* oklch */ color: oklch(31.8% 0.175 269.8);

Tailwind

colors: {
  custom: {
    50: '#6c59ad',
    500: '#171a89',
    950: '#000000',
  },
}

SCSS

$custom: #171a89;
$custom-light: #6c59ad;
$custom-dark: #000000;

JSON

{
  "hex": "#171a89",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 137
  },
  "hsl": {
    "h": 238.421,
    "s": 71.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31805,
    "c": 0.17514,
    "h": 269.8
  },
  "luminance": 0.02727
}

Semantic roles & 50–950 ramp

primary

#171A89

secondary

#BDB93F

accent

#E93AEE

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #171A89

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

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