#16173F#16173F

#16173F is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.1% C 0.075 H 277.7°. Best body text is #FFFFFF at 17.10:1 contrast (WCAG AA passes).

Color values

HEX	#16173F
RGB	rgb(22, 23, 63)
HSL	hsl(239, 48%, 17%)
HSV	hsv(239, 65%, 25%)
CMYK	cmyk(65.1%, 63.5%, 0%, 75.3%)
CIE-LAB	lab(10.12, 13.76, -25.81)
CIE-LCH	lch(10.12, 29.25, 298.06°)
OKLab	oklab(23.07% 0.01 -0.074)
OKLCH	oklch(23.07% 0.075 277.7)
XYZ	xyz(1.5342, 1.1421, 4.8413)
Luminance	0.0114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#16173F #3F3E16

analogous

#162C3F #16173F #2A163F

triadic

#16173F #3F1617 #173F16

tetradic

#16173F #3F162C #3F3E16 #163F2A

square

#16173F #3F162C #3F3E16 #163F2A

split-complementary

#16173F #3F2A16 #2C3F16

monochromatic

#080817 #080817 #16173F #26286C #36389A

Accessibility & contrast

On white

17.10

#16173F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#16173F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #16173F

17.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##16173F	#FFFFFF	#000000	##FFFFFF
##16173F	1.00	17.10	1.23	17.10
#FFFFFF	17.10	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D40

Deuteranopia (green-blind)

#001A3E

Tritanopia (blue-blind)

#022028

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #16173f;
/* rgb */ color: rgb(22, 23, 63);
/* oklch */ color: oklch(23.1% 0.075 277.7);

Tailwind

colors: {
  custom: {
    50: '#585374',
    500: '#16173f',
    950: '#000000',
  },
}

SCSS

$custom: #16173f;
$custom-light: #585374;
$custom-dark: #000000;

JSON

{
  "hex": "#16173f",
  "rgb": {
    "r": 22,
    "g": 23,
    "b": 63
  },
  "hsl": {
    "h": 238.537,
    "s": 48.235,
    "l": 16.667
  },
  "oklch": {
    "l": 0.23069,
    "c": 0.07467,
    "h": 277.7
  },
  "luminance": 0.01142
}

Semantic roles & 50–950 ramp

primary

#16173F

secondary

#76753B

accent

#D550D8

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #16173F

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

Preview Lab → · Contrast checker → · Palette generator →