#171E6B#171E6B

#171E6B is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.0% C 0.132 H 271.1°. Best body text is #FFFFFF at 14.64:1 contrast (WCAG AA passes).

Color values

HEX	#171E6B
RGB	rgb(23, 30, 107)
HSL	hsl(235, 65%, 25%)
HSV	hsv(235, 79%, 42%)
CMYK	cmyk(78.5%, 72%, 0%, 58%)
CIE-LAB	lab(16.36, 26.38, -45.49)
CIE-LCH	lch(16.36, 52.58, 300.11°)
OKLab	oklab(28.98% 0.0025 -0.1316)
OKLCH	oklch(28.98% 0.132 271.1)
XYZ	xyz(3.4706, 2.1719, 14.1434)
Luminance	0.0217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E6B #6B6417

analogous

#17486B #171E6B #3A176B

triadic

#171E6B #6B171E #1E6B17

tetradic

#171E6B #6B1748 #6B6417 #176B3A

square

#171E6B #6B1748 #6B6417 #176B3A

split-complementary

#171E6B #6B3A17 #486B17

monochromatic

#050719 #0C1039 #171E6B #222C9D #2D3AD0

Accessibility & contrast

On white

14.64

#171E6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#171E6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E6B

14.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E6B	#FFFFFF	#000000	##FFFFFF
##171E6B	1.00	14.64	1.43	14.64
#FFFFFF	14.64	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D6D

Deuteranopia (green-blind)

#00256A

Tritanopia (blue-blind)

#003342

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #171e6b;
/* rgb */ color: rgb(23, 30, 107);
/* oklch */ color: oklch(29.0% 0.132 271.1);

Tailwind

colors: {
  custom: {
    50: '#635a96',
    500: '#171e6b',
    950: '#000000',
  },
}

SCSS

$custom: #171e6b;
$custom-light: #635a96;
$custom-dark: #000000;

JSON

{
  "hex": "#171e6b",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 107
  },
  "hsl": {
    "h": 235,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.28978,
    "c": 0.13163,
    "h": 271.1
  },
  "luminance": 0.02172
}

Semantic roles & 50–950 ramp

primary

#171E6B

secondary

#A1993D

accent

#DA40E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030D

muted

#7A787E

Preview Lab

Preview with #171E6B

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

Preview Lab → · Contrast checker → · Palette generator →