#171E69#171E69

#171E69 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.8% C 0.129 H 271.2°. Best body text is #FFFFFF at 14.72:1 contrast (WCAG AA passes).

Color values

HEX	#171E69
RGB	rgb(23, 30, 105)
HSL	hsl(235, 64%, 25%)
HSV	hsv(235, 78%, 41%)
CMYK	cmyk(78.1%, 71.4%, 0%, 58.8%)
CIE-LAB	lab(16.16, 25.60, -44.52)
CIE-LCH	lch(16.16, 51.36, 299.90°)
OKLab	oklab(28.76% 0.0027 -0.1288)
OKLCH	oklch(28.76% 0.129 271.2)
XYZ	xyz(3.3666, 2.1303, 13.5956)
Luminance	0.0213 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E69 #696217

analogous

#174769 #171E69 #391769

triadic

#171E69 #69171E #1E6917

tetradic

#171E69 #691747 #696217 #176939

square

#171E69 #691747 #696217 #176939

split-complementary

#171E69 #693917 #476917

monochromatic

#050719 #0C1037 #171E69 #222C9B #2D3BCD

Accessibility & contrast

On white

14.72

#171E69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#171E69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E69

14.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E69	#FFFFFF	#000000	##FFFFFF
##171E69	1.00	14.72	1.43	14.72
#FFFFFF	14.72	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C6B

Deuteranopia (green-blind)

#002468

Tritanopia (blue-blind)

#003240

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #171e69;
/* rgb */ color: rgb(23, 30, 105);
/* oklch */ color: oklch(28.8% 0.129 271.2);

Tailwind

colors: {
  custom: {
    50: '#635a95',
    500: '#171e69',
    950: '#000000',
  },
}

SCSS

$custom: #171e69;
$custom-light: #635a95;
$custom-dark: #000000;

JSON

{
  "hex": "#171e69",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 105
  },
  "hsl": {
    "h": 234.878,
    "s": 64.063,
    "l": 25.098
  },
  "oklch": {
    "l": 0.28764,
    "c": 0.12882,
    "h": 271.2
  },
  "luminance": 0.02131
}

Semantic roles & 50–950 ramp

primary

#171E69

secondary

#9F973D

accent

#D941E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #171E69

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

Preview Lab → · Contrast checker → · Palette generator →