#172778#172778

#172778 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.0% C 0.139 H 268.3°. Best body text is #FFFFFF at 13.14:1 contrast (WCAG AA passes).

Color values

HEX	#172778
RGB	rgb(23, 39, 120)
HSL	hsl(230, 68%, 28%)
HSV	hsv(230, 81%, 47%)
CMYK	cmyk(80.8%, 67.5%, 0%, 52.9%)
CIE-LAB	lab(20.00, 25.28, -47.92)
CIE-LCH	lch(20.00, 54.18, 297.82°)
OKLab	oklab(32.03% -0.0041 -0.1387)
OKLCH	oklch(32.03% 0.139 268.3)
XYZ	xyz(4.4679, 2.9888, 18.1071)
Luminance	0.0299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172778 #786817

analogous

#175778 #172778 #371778

triadic

#172778 #781727 #277817

tetradic

#172778 #781757 #786817 #177837

square

#172778 #781757 #786817 #177837

split-complementary

#172778 #783717 #577817

monochromatic

#05081A #0D1645 #172778 #2138AB #324DD8

Accessibility & contrast

On white

13.14

#172778 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#172778 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172778

13.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172778	#FFFFFF	#000000	##FFFFFF
##172778	1.00	13.14	1.60	13.14
#FFFFFF	13.14	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357B

Deuteranopia (green-blind)

#002C76

Tritanopia (blue-blind)

#003D4B

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172778;
/* rgb */ color: rgb(23, 39, 120);
/* oklch */ color: oklch(32.0% 0.139 268.3);

Tailwind

colors: {
  custom: {
    50: '#6661a0',
    500: '#172778',
    950: '#000000',
  },
}

SCSS

$custom: #172778;
$custom-light: #6661a0;
$custom-dark: #000000;

JSON

{
  "hex": "#172778",
  "rgb": {
    "r": 23,
    "g": 39,
    "b": 120
  },
  "hsl": {
    "h": 230.103,
    "s": 67.832,
    "l": 28.039
  },
  "oklch": {
    "l": 0.32029,
    "c": 0.13872,
    "h": 268.3
  },
  "luminance": 0.02989
}

Semantic roles & 50–950 ramp

primary

#172778

secondary

#AD9B3E

accent

#CE3DEB

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07050F

muted

#7A797E

Preview Lab

Preview with #172778

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

Preview Lab → · Contrast checker → · Palette generator →