#173083#173083

#173083 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.9% C 0.143 H 266.0°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#173083
RGB	rgb(23, 48, 131)
HSL	hsl(226, 70%, 30%)
HSV	hsv(226, 82%, 51%)
CMYK	cmyk(82.4%, 63.4%, 0%, 48.6%)
CIE-LAB	lab(23.45, 23.41, -49.23)
CIE-LCH	lch(23.45, 54.51, 295.43°)
OKLab	oklab(34.9% -0.0098 -0.1424)
OKLCH	oklch(34.9% 0.143 266)
XYZ	xyz(5.5056, 3.9341, 21.9375)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173083 #836A17

analogous

#176683 #173083 #341783

triadic

#173083 #831730 #308317

tetradic

#173083 #831766 #836A17 #178334

square

#173083 #831766 #836A17 #178334

split-complementary

#173083 #833417 #668317

monochromatic

#050A1B #0E1D4F #173083 #2043B7 #385EDC

Accessibility & contrast

On white

11.75

#173083 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#173083 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173083

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173083	#FFFFFF	#000000	##FFFFFF
##173083	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D86

Deuteranopia (green-blind)

#003381

Tritanopia (blue-blind)

#004554

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #173083;
/* rgb */ color: rgb(23, 48, 131);
/* oklch */ color: oklch(34.9% 0.143 266.0);

Tailwind

colors: {
  custom: {
    50: '#6868a8',
    500: '#173083',
    950: '#000000',
  },
}

SCSS

$custom: #173083;
$custom-light: #6868a8;
$custom-dark: #000000;

JSON

{
  "hex": "#173083",
  "rgb": {
    "r": 23,
    "g": 48,
    "b": 131
  },
  "hsl": {
    "h": 226.111,
    "s": 70.13,
    "l": 30.196
  },
  "oklch": {
    "l": 0.34898,
    "c": 0.14273,
    "h": 266
  },
  "luminance": 0.03935
}

Semantic roles & 50–950 ramp

primary

#173083

secondary

#B79B3F

accent

#C43BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #173083

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

Preview Lab → · Contrast checker → · Palette generator →