#171C60#171C60

#171C60 is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.4% C 0.118 H 272.4°. Best body text is #FFFFFF at 15.31:1 contrast (WCAG AA passes).

Color values

HEX	#171C60
RGB	rgb(23, 28, 96)
HSL	hsl(236, 61%, 23%)
HSV	hsv(236, 76%, 38%)
CMYK	cmyk(76%, 70.8%, 0%, 62.4%)
CIE-LAB	lab(14.72, 23.46, -40.94)
CIE-LCH	lch(14.72, 47.19, 299.81°)
OKLab	oklab(27.44% 0.005 -0.1183)
OKLCH	oklch(27.44% 0.118 272.4)
XYZ	xyz(2.8792, 1.8569, 11.2707)
Luminance	0.0186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171C60 #605B17

analogous

#174060 #171C60 #361760

triadic

#171C60 #60171C #1C6017

tetradic

#171C60 #601740 #605B17 #176036

square

#171C60 #601740 #605B17 #176036

split-complementary

#171C60 #603617 #406017

monochromatic

#060719 #0B0E2F #171C60 #232A91 #2F39C3

Accessibility & contrast

On white

15.31

#171C60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#171C60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171C60

15.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171C60	#FFFFFF	#000000	##FFFFFF
##171C60	1.00	15.31	1.37	15.31
#FFFFFF	15.31	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002962

Deuteranopia (green-blind)

#00225F

Tritanopia (blue-blind)

#002E3B

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #171c60;
/* rgb */ color: rgb(23, 28, 96);
/* oklch */ color: oklch(27.4% 0.118 272.4);

Tailwind

colors: {
  custom: {
    50: '#60588e',
    500: '#171c60',
    950: '#000000',
  },
}

SCSS

$custom: #171c60;
$custom-light: #60588e;
$custom-dark: #000000;

JSON

{
  "hex": "#171c60",
  "rgb": {
    "r": 23,
    "g": 28,
    "b": 96
  },
  "hsl": {
    "h": 235.89,
    "s": 61.345,
    "l": 23.333
  },
  "oklch": {
    "l": 0.27437,
    "c": 0.11844,
    "h": 272.4
  },
  "luminance": 0.01857
}

Semantic roles & 50–950 ramp

primary

#171C60

secondary

#97903C

accent

#D943E4

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #171C60

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

Preview Lab → · Contrast checker → · Palette generator →