#172777#172777

#172777 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 31.9% C 0.137 H 268.3°. Best body text is #FFFFFF at 13.18:1 contrast (WCAG AA passes).

Color values

HEX	#172777
RGB	rgb(23, 39, 119)
HSL	hsl(230, 68%, 28%)
HSV	hsv(230, 81%, 47%)
CMYK	cmyk(80.7%, 67.2%, 0%, 53.3%)
CIE-LAB	lab(19.90, 24.89, -47.44)
CIE-LCH	lch(19.90, 53.57, 297.68°)
OKLab	oklab(31.93% -0.004 -0.1372)
OKLCH	oklch(31.93% 0.137 268.3)
XYZ	xyz(4.4075, 2.9646, 17.7891)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172777 #776717

analogous

#175777 #172777 #371777

triadic

#172777 #771727 #277717

tetradic

#172777 #771757 #776717 #177737

square

#172777 #771757 #776717 #177737

split-complementary

#172777 #773717 #577717

monochromatic

#05081A #0D1644 #172777 #2138AA #314DD7

Accessibility & contrast

On white

13.18

#172777 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#172777 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172777

13.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172777	#FFFFFF	#000000	##FFFFFF
##172777	1.00	13.18	1.59	13.18
#FFFFFF	13.18	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357A

Deuteranopia (green-blind)

#002C75

Tritanopia (blue-blind)

#003C4B

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172777;
/* rgb */ color: rgb(23, 39, 119);
/* oklch */ color: oklch(31.9% 0.137 268.3);

Tailwind

colors: {
  custom: {
    50: '#66619f',
    500: '#172777',
    950: '#000000',
  },
}

SCSS

$custom: #172777;
$custom-light: #66619f;
$custom-dark: #000000;

JSON

{
  "hex": "#172777",
  "rgb": {
    "r": 23,
    "g": 39,
    "b": 119
  },
  "hsl": {
    "h": 230,
    "s": 67.606,
    "l": 27.843
  },
  "oklch": {
    "l": 0.31928,
    "c": 0.13731,
    "h": 268.3
  },
  "luminance": 0.02965
}

Semantic roles & 50–950 ramp

primary

#172777

secondary

#AC9A3E

accent

#CE3DEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07050F

muted

#7A797E

Preview Lab

Preview with #172777

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

Preview Lab → · Contrast checker → · Palette generator →