#172583#172583

#172583 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.8% C 0.156 H 268.6°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#172583
RGB	rgb(23, 37, 131)
HSL	hsl(232, 70%, 30%)
HSV	hsv(232, 82%, 51%)
CMYK	cmyk(82.4%, 71.8%, 0%, 48.6%)
CIE-LAB	lab(20.61, 30.91, -53.89)
CIE-LCH	lch(20.61, 62.13, 299.84°)
OKLab	oklab(32.81% -0.0038 -0.1561)
OKLCH	oklch(32.81% 0.156 268.6)
XYZ	xyz(5.1102, 3.1434, 21.8057)
Luminance	0.0314 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172583 #837517

analogous

#175B83 #172583 #3F1783

triadic

#172583 #831725 #258317

tetradic

#172583 #83175B #837517 #17833F

square

#172583 #83175B #837517 #17833F

split-complementary

#172583 #833F17 #5B8317

monochromatic

#05081B #0E164F #172583 #2034B7 #384EDC

Accessibility & contrast

On white

12.89

#172583 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#172583 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172583

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172583	#FFFFFF	#000000	##FFFFFF
##172583	1.00	12.89	1.63	12.89
#FFFFFF	12.89	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003786

Deuteranopia (green-blind)

#002C81

Tritanopia (blue-blind)

#003F51

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #172583;
/* rgb */ color: rgb(23, 37, 131);
/* oklch */ color: oklch(32.8% 0.156 268.6);

Tailwind

colors: {
  custom: {
    50: '#6960a8',
    500: '#172583',
    950: '#000000',
  },
}

SCSS

$custom: #172583;
$custom-light: #6960a8;
$custom-dark: #000000;

JSON

{
  "hex": "#172583",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 131
  },
  "hsl": {
    "h": 232.222,
    "s": 70.13,
    "l": 30.196
  },
  "oklch": {
    "l": 0.32812,
    "c": 0.15617,
    "h": 268.6
  },
  "luminance": 0.03144
}

Semantic roles & 50–950 ramp

primary

#172583

secondary

#B7A83F

accent

#D63BED

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080410

muted

#7A797F

Preview Lab

Preview with #172583

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

Preview Lab → · Contrast checker → · Palette generator →