#173576#173576

#173576 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.8% C 0.117 H 263.1°. Best body text is #FFFFFF at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#173576
RGB	rgb(23, 53, 118)
HSL	hsl(221, 67%, 28%)
HSV	hsv(221, 81%, 46%)
CMYK	cmyk(80.5%, 55.1%, 0%, 53.7%)
CIE-LAB	lab(23.79, 14.52, -40.46)
CIE-LCH	lch(23.79, 42.99, 289.75°)
OKLab	oklab(34.81% -0.0142 -0.1166)
OKLCH	oklch(34.81% 0.117 263.1)
XYZ	xyz(4.8953, 4.0358, 17.6570)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173576 #765817

analogous

#176476 #173576 #291776

triadic

#173576 #761735 #357617

tetradic

#173576 #761764 #765817 #177629

square

#173576 #761764 #765817 #177629

split-complementary

#173576 #762917 #647617

monochromatic

#050C1A #0D1E43 #173576 #214CA9 #3165D7

Accessibility & contrast

On white

11.62

#173576 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#173576 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173576

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173576	#FFFFFF	#000000	##FFFFFF
##173576	1.00	11.62	1.81	11.62
#FFFFFF	11.62	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#053D78

Deuteranopia (green-blind)

#003475

Tritanopia (blue-blind)

#004550

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #173576;
/* rgb */ color: rgb(23, 53, 118);
/* oklch */ color: oklch(34.8% 0.117 263.1);

Tailwind

colors: {
  custom: {
    50: '#646b9e',
    500: '#173576',
    950: '#000000',
  },
}

SCSS

$custom: #173576;
$custom-light: #646b9e;
$custom-dark: #000000;

JSON

{
  "hex": "#173576",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 118
  },
  "hsl": {
    "h": 221.053,
    "s": 67.376,
    "l": 27.647
  },
  "oklch": {
    "l": 0.34808,
    "c": 0.11742,
    "h": 263.1
  },
  "luminance": 0.04036
}

Semantic roles & 50–950 ramp

primary

#173576

secondary

#AB893E

accent

#B43EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #173576

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

Preview Lab → · Contrast checker → · Palette generator →