#173868#173868

#173868 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.4% C 0.093 H 258.0°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#173868
RGB	rgb(23, 56, 104)
HSL	hsl(216, 64%, 25%)
HSV	hsv(216, 78%, 41%)
CMYK	cmyk(77.9%, 46.2%, 0%, 59.2%)
CIE-LAB	lab(23.70, 6.55, -31.63)
CIE-LCH	lch(23.70, 32.30, 281.70°)
OKLab	oklab(34.42% -0.0192 -0.0905)
OKLCH	oklch(34.42% 0.093 258)
XYZ	xyz(4.2653, 4.0095, 13.6431)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173868 #684717

analogous

#176068 #173868 #1F1768

triadic

#173868 #681738 #386817

tetradic

#173868 #681760 #684717 #17681F

square

#173868 #681760 #684717 #17681F

split-complementary

#173868 #681F17 #606817

monochromatic

#060D19 #0C1D36 #173868 #22539A #2D6ECC

Accessibility & contrast

On white

11.65

#173868 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#173868 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173868

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173868	#FFFFFF	#000000	##FFFFFF
##173868	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#203C6A

Deuteranopia (green-blind)

#113567

Tritanopia (blue-blind)

#00434B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #173868;
/* rgb */ color: rgb(23, 56, 104);
/* oklch */ color: oklch(34.4% 0.093 258.0);

Tailwind

colors: {
  custom: {
    50: '#606e93',
    500: '#173868',
    950: '#000000',
  },
}

SCSS

$custom: #173868;
$custom-light: #606e93;
$custom-dark: #000000;

JSON

{
  "hex": "#173868",
  "rgb": {
    "r": 23,
    "g": 56,
    "b": 104
  },
  "hsl": {
    "h": 215.556,
    "s": 63.78,
    "l": 24.902
  },
  "oklch": {
    "l": 0.34416,
    "c": 0.09252,
    "h": 258
  },
  "luminance": 0.0401
}

Semantic roles & 50–950 ramp

primary

#173868

secondary

#9E763D

accent

#A341E7

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #173868

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

Preview Lab → · Contrast checker → · Palette generator →