#171A61#171A61

#171A61 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.2% C 0.122 H 272.9°. Best body text is #FFFFFF at 15.48:1 contrast (WCAG AA passes).

Color values

HEX	#171A61
RGB	rgb(23, 26, 97)
HSL	hsl(238, 62%, 24%)
HSV	hsv(238, 76%, 38%)
CMYK	cmyk(76.3%, 73.2%, 0%, 62%)
CIE-LAB	lab(14.31, 25.23, -42.28)
CIE-LCH	lch(14.31, 49.24, 300.83°)
OKLab	oklab(27.17% 0.0063 -0.1222)
OKLCH	oklch(27.17% 0.122 272.9)
XYZ	xyz(2.8797, 1.7837, 11.4995)
Luminance	0.0178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A61 #615E17

analogous

#173F61 #171A61 #391761

triadic

#171A61 #61171A #1A6117

tetradic

#171A61 #61173F #615E17 #176139

square

#171A61 #61173F #615E17 #176139

split-complementary

#171A61 #613917 #3F6117

monochromatic

#060719 #0B0D30 #171A61 #232792 #2E35C4

Accessibility & contrast

On white

15.48

#171A61 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#171A61 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A61

15.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A61	#FFFFFF	#000000	##FFFFFF
##171A61	1.00	15.48	1.36	15.48
#FFFFFF	15.48	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002863

Deuteranopia (green-blind)

#002160

Tritanopia (blue-blind)

#002D3B

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #171a61;
/* rgb */ color: rgb(23, 26, 97);
/* oklch */ color: oklch(27.2% 0.122 272.9);

Tailwind

colors: {
  custom: {
    50: '#61578f',
    500: '#171a61',
    950: '#000000',
  },
}

SCSS

$custom: #171a61;
$custom-light: #61578f;
$custom-dark: #000000;

JSON

{
  "hex": "#171a61",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 97
  },
  "hsl": {
    "h": 237.568,
    "s": 61.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.27172,
    "c": 0.12241,
    "h": 272.9
  },
  "luminance": 0.01784
}

Semantic roles & 50–950 ramp

primary

#171A61

secondary

#98943C

accent

#DE43E5

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #171A61

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

Preview Lab → · Contrast checker → · Palette generator →