#173869#173869

#173869 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.5% C 0.094 H 258.4°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#173869
RGB	rgb(23, 56, 105)
HSL	hsl(216, 64%, 25%)
HSV	hsv(216, 78%, 41%)
CMYK	cmyk(78.1%, 46.7%, 0%, 58.8%)
CIE-LAB	lab(23.77, 6.96, -32.16)
CIE-LCH	lch(23.77, 32.91, 282.22°)
OKLab	oklab(34.49% -0.019 -0.0921)
OKLCH	oklch(34.49% 0.094 258.4)
XYZ	xyz(4.3164, 4.0299, 13.9122)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173869 #694817

analogous

#176169 #173869 #1F1769

triadic

#173869 #691738 #386917

tetradic

#173869 #691761 #694817 #17691F

square

#173869 #691761 #694817 #17691F

split-complementary

#173869 #691F17 #616917

monochromatic

#050D19 #0C1D37 #173869 #22539B #2D6ECD

Accessibility & contrast

On white

11.63

#173869 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#173869 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173869

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173869	#FFFFFF	#000000	##FFFFFF
##173869	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F3D6B

Deuteranopia (green-blind)

#103568

Tritanopia (blue-blind)

#00444B

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #173869;
/* rgb */ color: rgb(23, 56, 105);
/* oklch */ color: oklch(34.5% 0.094 258.4);

Tailwind

colors: {
  custom: {
    50: '#616e94',
    500: '#173869',
    950: '#000000',
  },
}

SCSS

$custom: #173869;
$custom-light: #616e94;
$custom-dark: #000000;

JSON

{
  "hex": "#173869",
  "rgb": {
    "r": 23,
    "g": 56,
    "b": 105
  },
  "hsl": {
    "h": 215.854,
    "s": 64.063,
    "l": 25.098
  },
  "oklch": {
    "l": 0.3449,
    "c": 0.09402,
    "h": 258.4
  },
  "luminance": 0.0403
}

Semantic roles & 50–950 ramp

primary

#173869

secondary

#9F783D

accent

#A441E7

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #173869

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

Preview Lab → · Contrast checker → · Palette generator →