#171D65#171D65

#171D65 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.2% C 0.124 H 271.7°. Best body text is #FFFFFF at 15.00:1 contrast (WCAG AA passes).

Color values

HEX	#171D65
RGB	rgb(23, 29, 101)
HSL	hsl(235, 63%, 24%)
HSV	hsv(235, 77%, 40%)
CMYK	cmyk(77.2%, 71.3%, 0%, 60.4%)
CIE-LAB	lab(15.49, 24.73, -42.99)
CIE-LCH	lch(15.49, 49.59, 299.90°)
OKLab	oklab(28.15% 0.0038 -0.1243)
OKLCH	oklch(28.15% 0.124 271.7)
XYZ	xyz(3.1409, 2.0002, 12.5299)
Luminance	0.0200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171D65 #655F17

analogous

#174465 #171D65 #381765

triadic

#171D65 #65171D #1D6517

tetradic

#171D65 #651744 #655F17 #176538

square

#171D65 #651744 #655F17 #176538

split-complementary

#171D65 #653817 #446517

monochromatic

#060719 #0C0F33 #171D65 #222B97 #2E3AC9

Accessibility & contrast

On white

15.00

#171D65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#171D65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171D65

15.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171D65	#FFFFFF	#000000	##FFFFFF
##171D65	1.00	15.00	1.40	15.00
#FFFFFF	15.00	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A67

Deuteranopia (green-blind)

#002364

Tritanopia (blue-blind)

#00303E

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #171d65;
/* rgb */ color: rgb(23, 29, 101);
/* oklch */ color: oklch(28.2% 0.124 271.7);

Tailwind

colors: {
  custom: {
    50: '#625992',
    500: '#171d65',
    950: '#000000',
  },
}

SCSS

$custom: #171d65;
$custom-light: #625992;
$custom-dark: #000000;

JSON

{
  "hex": "#171d65",
  "rgb": {
    "r": 23,
    "g": 29,
    "b": 101
  },
  "hsl": {
    "h": 235.385,
    "s": 62.903,
    "l": 24.314
  },
  "oklch": {
    "l": 0.28153,
    "c": 0.12437,
    "h": 271.7
  },
  "luminance": 0.02
}

Semantic roles & 50–950 ramp

primary

#171D65

secondary

#9B943C

accent

#D942E6

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #171D65

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

Preview Lab → · Contrast checker → · Palette generator →