#171A85#171A85

#171A85 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.3% C 0.170 H 270.0°. Best body text is #FFFFFF at 13.79:1 contrast (WCAG AA passes).

Color values

HEX	#171A85
RGB	rgb(23, 26, 133)
HSL	hsl(238, 71%, 31%)
HSV	hsv(238, 83%, 52%)
CMYK	cmyk(82.7%, 80.5%, 0%, 47.8%)
CIE-LAB	lab(18.43, 38.40, -58.76)
CIE-LCH	lch(18.43, 70.19, 303.16°)
OKLab	oklab(31.32% 0 -0.1702)
OKLCH	oklch(31.32% 0.17 270)
XYZ	xyz(4.9549, 2.6138, 22.4291)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A85 #858217

analogous

#175185 #171A85 #4B1785

triadic

#171A85 #85171A #1A8517

tetradic

#171A85 #851751 #858217 #17854B

square

#171A85 #851751 #858217 #17854B

split-complementary

#171A85 #854B17 #518517

monochromatic

#05061D #0E1051 #171A85 #2024B9 #3A3EDD

Accessibility & contrast

On white

13.79

#171A85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#171A85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A85

13.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A85	#FFFFFF	#000000	##FFFFFF
##171A85	1.00	13.79	1.52	13.79
#FFFFFF	13.79	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003288

Deuteranopia (green-blind)

#002783

Tritanopia (blue-blind)

#003B4F

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #171a85;
/* rgb */ color: rgb(23, 26, 133);
/* oklch */ color: oklch(31.3% 0.170 270.0);

Tailwind

colors: {
  custom: {
    50: '#6b59aa',
    500: '#171a85',
    950: '#000000',
  },
}

SCSS

$custom: #171a85;
$custom-light: #6b59aa;
$custom-dark: #000000;

JSON

{
  "hex": "#171a85",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 133
  },
  "hsl": {
    "h": 238.364,
    "s": 70.513,
    "l": 30.588
  },
  "oklch": {
    "l": 0.31321,
    "c": 0.17019,
    "h": 270
  },
  "luminance": 0.02614
}

Semantic roles & 50–950 ramp

primary

#171A85

secondary

#B9B63F

accent

#E83BED

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #171A85

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

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