#172678#172678

#172678 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.8% C 0.140 H 268.6°. Best body text is #FFFFFF at 13.25:1 contrast (WCAG AA passes).

Color values

HEX	#172678
RGB	rgb(23, 38, 120)
HSL	hsl(231, 68%, 28%)
HSV	hsv(231, 81%, 47%)
CMYK	cmyk(80.8%, 68.3%, 0%, 52.9%)
CIE-LAB	lab(19.74, 25.97, -48.35)
CIE-LCH	lch(19.74, 54.88, 298.25°)
OKLab	oklab(31.84% -0.0035 -0.1399)
OKLCH	oklch(31.84% 0.14 268.6)
XYZ	xyz(4.4355, 2.9240, 18.0963)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172678 #786917

analogous

#175678 #172678 #391778

triadic

#172678 #781726 #267817

tetradic

#172678 #781756 #786917 #177839

square

#172678 #781756 #786917 #177839

split-complementary

#172678 #783917 #567817

monochromatic

#05081A #0D1645 #172678 #2136AB #324BD8

Accessibility & contrast

On white

13.25

#172678 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#172678 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172678

13.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172678	#FFFFFF	#000000	##FFFFFF
##172678	1.00	13.25	1.58	13.25
#FFFFFF	13.25	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347B

Deuteranopia (green-blind)

#002B76

Tritanopia (blue-blind)

#003C4B

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172678;
/* rgb */ color: rgb(23, 38, 120);
/* oklch */ color: oklch(31.8% 0.140 268.6);

Tailwind

colors: {
  custom: {
    50: '#6660a0',
    500: '#172678',
    950: '#000000',
  },
}

SCSS

$custom: #172678;
$custom-light: #6660a0;
$custom-dark: #000000;

JSON

{
  "hex": "#172678",
  "rgb": {
    "r": 23,
    "g": 38,
    "b": 120
  },
  "hsl": {
    "h": 230.722,
    "s": 67.832,
    "l": 28.039
  },
  "oklch": {
    "l": 0.31837,
    "c": 0.13996,
    "h": 268.6
  },
  "luminance": 0.02924
}

Semantic roles & 50–950 ramp

primary

#172678

secondary

#AD9C3E

accent

#D03DEB

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07050F

muted

#7A797E

Preview Lab

Preview with #172678

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

Preview Lab → · Contrast checker → · Palette generator →