#173875#173875

#173875 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.4% C 0.112 H 261.4°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#173875
RGB	rgb(23, 56, 117)
HSL	hsl(219, 67%, 27%)
HSV	hsv(219, 80%, 46%)
CMYK	cmyk(80.3%, 52.1%, 0%, 54.1%)
CIE-LAB	lab(24.62, 11.97, -38.48)
CIE-LCH	lch(24.62, 40.30, 287.28°)
OKLab	oklab(35.42% -0.0168 -0.1107)
OKLCH	oklch(35.42% 0.112 261.4)
XYZ	xyz(4.9773, 4.2943, 17.3927)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173875 #755417

analogous

#176775 #173875 #251775

triadic

#173875 #751738 #387517

tetradic

#173875 #751767 #755417 #177525

square

#173875 #751767 #755417 #177525

split-complementary

#173875 #752517 #677517

monochromatic

#050C1A #0D2042 #173875 #2150A8 #306AD6

Accessibility & contrast

On white

11.30

#173875 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#173875 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173875

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173875	#FFFFFF	#000000	##FFFFFF
##173875	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#133F77

Deuteranopia (green-blind)

#003674

Tritanopia (blue-blind)

#004751

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #173875;
/* rgb */ color: rgb(23, 56, 117);
/* oklch */ color: oklch(35.4% 0.112 261.4);

Tailwind

colors: {
  custom: {
    50: '#646e9d',
    500: '#173875',
    950: '#000000',
  },
}

SCSS

$custom: #173875;
$custom-light: #646e9d;
$custom-dark: #000000;

JSON

{
  "hex": "#173875",
  "rgb": {
    "r": 23,
    "g": 56,
    "b": 117
  },
  "hsl": {
    "h": 218.936,
    "s": 67.143,
    "l": 27.451
  },
  "oklch": {
    "l": 0.35418,
    "c": 0.11194,
    "h": 261.4
  },
  "luminance": 0.04295
}

Semantic roles & 50–950 ramp

primary

#173875

secondary

#AA843D

accent

#AE3EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #173875

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

Preview Lab → · Contrast checker → · Palette generator →