#171D62#171D62

#171D62 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.8% C 0.120 H 271.9°. Best body text is #FFFFFF at 15.12:1 contrast (WCAG AA passes).

Color values

HEX	#171D62
RGB	rgb(23, 29, 98)
HSL	hsl(235, 62%, 24%)
HSV	hsv(235, 77%, 38%)
CMYK	cmyk(76.5%, 70.4%, 0%, 61.6%)
CIE-LAB	lab(15.18, 23.55, -41.51)
CIE-LCH	lch(15.18, 47.73, 299.57°)
OKLab	oklab(27.84% 0.0041 -0.12)
OKLCH	oklch(27.84% 0.12 271.9)
XYZ	xyz(2.9966, 1.9424, 11.7699)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171D62 #625C17

analogous

#174262 #171D62 #361762

triadic

#171D62 #62171D #1D6217

tetradic

#171D62 #621742 #625C17 #176236

square

#171D62 #621742 #625C17 #176236

split-complementary

#171D62 #623617 #426217

monochromatic

#060719 #0B0E30 #171D62 #232C94 #2E3AC5

Accessibility & contrast

On white

15.12

#171D62 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#171D62 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171D62

15.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171D62	#FFFFFF	#000000	##FFFFFF
##171D62	1.00	15.12	1.39	15.12
#FFFFFF	15.12	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A64

Deuteranopia (green-blind)

#002361

Tritanopia (blue-blind)

#002F3C

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #171d62;
/* rgb */ color: rgb(23, 29, 98);
/* oklch */ color: oklch(27.8% 0.120 271.9);

Tailwind

colors: {
  custom: {
    50: '#61598f',
    500: '#171d62',
    950: '#000000',
  },
}

SCSS

$custom: #171d62;
$custom-light: #61598f;
$custom-dark: #000000;

JSON

{
  "hex": "#171d62",
  "rgb": {
    "r": 23,
    "g": 29,
    "b": 98
  },
  "hsl": {
    "h": 235.2,
    "s": 61.983,
    "l": 23.725
  },
  "oklch": {
    "l": 0.27837,
    "c": 0.12005,
    "h": 271.9
  },
  "luminance": 0.01943
}

Semantic roles & 50–950 ramp

primary

#171D62

secondary

#99913C

accent

#D843E5

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #171D62

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

Preview Lab → · Contrast checker → · Palette generator →