#171A90#171A90

#171A90 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.7% C 0.184 H 269.3°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#171A90
RGB	rgb(23, 26, 144)
HSL	hsl(239, 72%, 33%)
HSV	hsv(239, 84%, 56%)
CMYK	cmyk(84%, 81.9%, 0%, 43.5%)
CIE-LAB	lab(19.78, 42.13, -63.41)
CIE-LCH	lch(19.78, 76.13, 303.60°)
OKLab	oklab(32.66% -0.0021 -0.1836)
OKLCH	oklch(32.66% 0.184 269.3)
XYZ	xyz(5.7551, 2.9339, 26.6431)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A90 #908D17

analogous

#175790 #171A90 #501790

triadic

#171A90 #90171A #1A9017

tetradic

#171A90 #901757 #908D17 #179050

square

#171A90 #901757 #908D17 #179050

split-complementary

#171A90 #905017 #579017

monochromatic

#060726 #0F105B #171A90 #1F24C5 #4145E1

Accessibility & contrast

On white

13.23

#171A90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#171A90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A90

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A90	#FFFFFF	#000000	##FFFFFF
##171A90	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003693

Deuteranopia (green-blind)

#00298E

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #171a90;
/* rgb */ color: rgb(23, 26, 144);
/* oklch */ color: oklch(32.7% 0.184 269.3);

Tailwind

colors: {
  custom: {
    50: '#6e59b2',
    500: '#171a90',
    950: '#000000',
  },
}

SCSS

$custom: #171a90;
$custom-light: #6e59b2;
$custom-dark: #000000;

JSON

{
  "hex": "#171a90",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 144
  },
  "hsl": {
    "h": 238.512,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.32659,
    "c": 0.18366,
    "h": 269.3
  },
  "luminance": 0.02935
}

Semantic roles & 50–950 ramp

primary

#171A90

secondary

#C1BE42

accent

#EB39EF

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #171A90

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

Preview Lab → · Contrast checker → · Palette generator →