#172784#172784

#172784 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.3% C 0.155 H 268.2°. Best body text is #FFFFFF at 12.65:1 contrast (WCAG AA passes).

Color values

HEX	#172784
RGB	rgb(23, 39, 132)
HSL	hsl(231, 70%, 30%)
HSV	hsv(231, 83%, 52%)
CMYK	cmyk(82.6%, 70.5%, 0%, 48.2%)
CIE-LAB	lab(21.20, 29.97, -53.55)
CIE-LCH	lch(21.20, 61.37, 299.24°)
OKLab	oklab(33.27% -0.0049 -0.1551)
OKLCH	oklch(33.27% 0.155 268.2)
XYZ	xyz(5.2423, 3.2985, 22.1857)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172784 #847417

analogous

#175D84 #172784 #3E1784

triadic

#172784 #841727 #278417

tetradic

#172784 #84175D #847417 #17843E

square

#172784 #84175D #847417 #17843E

split-complementary

#172784 #843E17 #5D8417

monochromatic

#05081C #0E1850 #172784 #2036B8 #3951DC

Accessibility & contrast

On white

12.65

#172784 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#172784 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172784

12.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172784	#FFFFFF	#000000	##FFFFFF
##172784	1.00	12.65	1.66	12.65
#FFFFFF	12.65	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003887

Deuteranopia (green-blind)

#002E82

Tritanopia (blue-blind)

#004152

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #172784;
/* rgb */ color: rgb(23, 39, 132);
/* oklch */ color: oklch(33.3% 0.155 268.2);

Tailwind

colors: {
  custom: {
    50: '#6961a9',
    500: '#172784',
    950: '#000000',
  },
}

SCSS

$custom: #172784;
$custom-light: #6961a9;
$custom-dark: #000000;

JSON

{
  "hex": "#172784",
  "rgb": {
    "r": 23,
    "g": 39,
    "b": 132
  },
  "hsl": {
    "h": 231.193,
    "s": 70.323,
    "l": 30.392
  },
  "oklch": {
    "l": 0.33273,
    "c": 0.15519,
    "h": 268.2
  },
  "luminance": 0.03299
}

Semantic roles & 50–950 ramp

primary

#172784

secondary

#B8A63F

accent

#D33BED

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #172784

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

Preview Lab → · Contrast checker → · Palette generator →