#171C61#171C61

#171C61 is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.5% C 0.120 H 272.3°. Best body text is #FFFFFF at 15.27:1 contrast (WCAG AA passes).

Color values

HEX	#171C61
RGB	rgb(23, 28, 97)
HSL	hsl(236, 62%, 24%)
HSV	hsv(236, 76%, 38%)
CMYK	cmyk(76.3%, 71.1%, 0%, 62%)
CIE-LAB	lab(14.82, 23.85, -41.44)
CIE-LCH	lch(14.82, 47.82, 299.92°)
OKLab	oklab(27.54% 0.0049 -0.1198)
OKLCH	oklch(27.54% 0.12 272.3)
XYZ	xyz(2.9255, 1.8754, 11.5148)
Luminance	0.0188 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171C61 #615C17

analogous

#174161 #171C61 #371761

triadic

#171C61 #61171C #1C6117

tetradic

#171C61 #611741 #615C17 #176137

square

#171C61 #611741 #615C17 #176137

split-complementary

#171C61 #613717 #416117

monochromatic

#060719 #0B0E30 #171C61 #232A92 #2E39C4

Accessibility & contrast

On white

15.27

#171C61 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#171C61 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171C61

15.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171C61	#FFFFFF	#000000	##FFFFFF
##171C61	1.00	15.27	1.38	15.27
#FFFFFF	15.27	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002963

Deuteranopia (green-blind)

#002260

Tritanopia (blue-blind)

#002E3B

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #171c61;
/* rgb */ color: rgb(23, 28, 97);
/* oklch */ color: oklch(27.5% 0.120 272.3);

Tailwind

colors: {
  custom: {
    50: '#61588f',
    500: '#171c61',
    950: '#000000',
  },
}

SCSS

$custom: #171c61;
$custom-light: #61588f;
$custom-dark: #000000;

JSON

{
  "hex": "#171c61",
  "rgb": {
    "r": 23,
    "g": 28,
    "b": 97
  },
  "hsl": {
    "h": 235.946,
    "s": 61.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.27542,
    "c": 0.11989,
    "h": 272.3
  },
  "luminance": 0.01876
}

Semantic roles & 50–950 ramp

primary

#171C61

secondary

#98913C

accent

#DA43E5

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #171C61

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

Preview Lab → · Contrast checker → · Palette generator →