#17316B#17316B

#17316B is a dark, moderate blue. Relative luminance 0.034; OKLCH L 33.0% C 0.106 H 263.5°. Best body text is #FFFFFF at 12.44:1 contrast (WCAG AA passes).

Color values

HEX	#17316B
RGB	rgb(23, 49, 107)
HSL	hsl(221, 65%, 25%)
HSV	hsv(221, 79%, 42%)
CMYK	cmyk(78.5%, 54.2%, 0%, 58%)
CIE-LAB	lab(21.73, 12.81, -36.75)
CIE-LCH	lch(21.73, 38.91, 289.22°)
OKLab	oklab(32.97% -0.012 -0.1057)
OKLCH	oklch(32.97% 0.106 263.5)
XYZ	xyz(4.1046, 3.4399, 14.3547)
Luminance	0.0344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17316B #6B5117

analogous

#175B6B #17316B #27176B

triadic

#17316B #6B1731 #316B17

tetradic

#17316B #6B175B #6B5117 #176B27

square

#17316B #6B175B #6B5117 #176B27

split-complementary

#17316B #6B2717 #5B6B17

monochromatic

#050C19 #0C1A39 #17316B #22489D #2D5FD0

Accessibility & contrast

On white

12.44

#17316B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#17316B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17316B

12.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17316B	#FFFFFF	#000000	##FFFFFF
##17316B	1.00	12.44	1.69	12.44
#FFFFFF	12.44	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C386D

Deuteranopia (green-blind)

#00306A

Tritanopia (blue-blind)

#003F49

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #17316b;
/* rgb */ color: rgb(23, 49, 107);
/* oklch */ color: oklch(33.0% 0.106 263.5);

Tailwind

colors: {
  custom: {
    50: '#626896',
    500: '#17316b',
    950: '#000000',
  },
}

SCSS

$custom: #17316b;
$custom-light: #626896;
$custom-dark: #000000;

JSON

{
  "hex": "#17316b",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 107
  },
  "hsl": {
    "h": 221.429,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.32968,
    "c": 0.10639,
    "h": 263.5
  },
  "luminance": 0.0344
}

Semantic roles & 50–950 ramp

primary

#17316B

secondary

#A1823D

accent

#B440E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #17316B

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

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