#17316A#17316A

#17316A is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.9% C 0.105 H 263.3°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#17316A
RGB	rgb(23, 49, 106)
HSL	hsl(221, 64%, 25%)
HSV	hsv(221, 78%, 42%)
CMYK	cmyk(78.3%, 53.8%, 0%, 58.4%)
CIE-LAB	lab(21.65, 12.39, -36.22)
CIE-LCH	lch(21.65, 38.28, 288.89°)
OKLab	oklab(32.89% -0.0122 -0.1042)
OKLCH	oklch(32.89% 0.105 263.3)
XYZ	xyz(4.0523, 3.4189, 14.0792)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17316A #6A5017

analogous

#175A6A #17316A #27176A

triadic

#17316A #6A1731 #316A17

tetradic

#17316A #6A175A #6A5017 #176A27

square

#17316A #6A175A #6A5017 #176A27

split-complementary

#17316A #6A2717 #5A6A17

monochromatic

#050C19 #0C1A38 #17316A #22489C #2D5FCF

Accessibility & contrast

On white

12.47

#17316A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#17316A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17316A

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17316A	#FFFFFF	#000000	##FFFFFF
##17316A	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D386C

Deuteranopia (green-blind)

#003069

Tritanopia (blue-blind)

#003F48

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #17316a;
/* rgb */ color: rgb(23, 49, 106);
/* oklch */ color: oklch(32.9% 0.105 263.3);

Tailwind

colors: {
  custom: {
    50: '#616895',
    500: '#17316a',
    950: '#000000',
  },
}

SCSS

$custom: #17316a;
$custom-light: #616895;
$custom-dark: #000000;

JSON

{
  "hex": "#17316a",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 106
  },
  "hsl": {
    "h": 221.205,
    "s": 64.341,
    "l": 25.294
  },
  "oklch": {
    "l": 0.32885,
    "c": 0.10488,
    "h": 263.3
  },
  "luminance": 0.03419
}

Semantic roles & 50–950 ramp

primary

#17316A

secondary

#A0813D

accent

#B340E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #17316A

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

Preview Lab → · Contrast checker → · Palette generator →