#172779#172779

#172779 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.1% C 0.140 H 268.3°. Best body text is #FFFFFF at 13.10:1 contrast (WCAG AA passes).

Color values

HEX	#172779
RGB	rgb(23, 39, 121)
HSL	hsl(230, 68%, 28%)
HSV	hsv(230, 81%, 47%)
CMYK	cmyk(81%, 67.8%, 0%, 52.5%)
CIE-LAB	lab(20.10, 25.68, -48.39)
CIE-LCH	lch(20.10, 54.79, 297.95°)
OKLab	oklab(32.13% -0.0041 -0.1401)
OKLCH	oklch(32.13% 0.14 268.3)
XYZ	xyz(4.5289, 3.0132, 18.4284)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172779 #796917

analogous

#175879 #172779 #381779

triadic

#172779 #791727 #277917

tetradic

#172779 #791758 #796917 #177938

square

#172779 #791758 #796917 #177938

split-complementary

#172779 #793817 #587917

monochromatic

#05081A #0D1646 #172779 #2138AC #324DD8

Accessibility & contrast

On white

13.10

#172779 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#172779 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172779

13.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172779	#FFFFFF	#000000	##FFFFFF
##172779	1.00	13.10	1.60	13.10
#FFFFFF	13.10	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357C

Deuteranopia (green-blind)

#002C77

Tritanopia (blue-blind)

#003D4C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #172779;
/* rgb */ color: rgb(23, 39, 121);
/* oklch */ color: oklch(32.1% 0.140 268.3);

Tailwind

colors: {
  custom: {
    50: '#6661a1',
    500: '#172779',
    950: '#000000',
  },
}

SCSS

$custom: #172779;
$custom-light: #6661a1;
$custom-dark: #000000;

JSON

{
  "hex": "#172779",
  "rgb": {
    "r": 23,
    "g": 39,
    "b": 121
  },
  "hsl": {
    "h": 230.204,
    "s": 68.056,
    "l": 28.235
  },
  "oklch": {
    "l": 0.3213,
    "c": 0.14012,
    "h": 268.3
  },
  "luminance": 0.03014
}

Semantic roles & 50–950 ramp

primary

#172779

secondary

#AE9C3E

accent

#CF3DEB

background

#F6F5FA

surface

#EBE9F3

border

#C6C5CD

text

#07050F

muted

#7A797F

Preview Lab

Preview with #172779

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

Preview Lab → · Contrast checker → · Palette generator →