#172E77#172E77

#172E77 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.4% C 0.128 H 266.1°. Best body text is #FFFFFF at 12.40:1 contrast (WCAG AA passes).

Color values

HEX	#172E77
RGB	rgb(23, 46, 119)
HSL	hsl(226, 68%, 28%)
HSV	hsv(226, 81%, 47%)
CMYK	cmyk(80.7%, 61.3%, 0%, 53.3%)
CIE-LAB	lab(21.83, 19.94, -44.29)
CIE-LCH	lch(21.83, 48.57, 294.24°)
OKLab	oklab(33.36% -0.0087 -0.1279)
OKLCH	oklch(33.36% 0.128 266.1)
XYZ	xyz(4.6589, 3.4675, 17.8729)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E77 #776017

analogous

#175E77 #172E77 #301777

triadic

#172E77 #77172E #2E7717

tetradic

#172E77 #77175E #776017 #177730

square

#172E77 #77175E #776017 #177730

split-complementary

#172E77 #773017 #5E7717

monochromatic

#050A1A #0D1A44 #172E77 #2142AA #3159D7

Accessibility & contrast

On white

12.40

#172E77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#172E77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E77

12.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E77	#FFFFFF	#000000	##FFFFFF
##172E77	1.00	12.40	1.69	12.40
#FFFFFF	12.40	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003979

Deuteranopia (green-blind)

#003076

Tritanopia (blue-blind)

#00404D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #172e77;
/* rgb */ color: rgb(23, 46, 119);
/* oklch */ color: oklch(33.4% 0.128 266.1);

Tailwind

colors: {
  custom: {
    50: '#65669f',
    500: '#172e77',
    950: '#000000',
  },
}

SCSS

$custom: #172e77;
$custom-light: #65669f;
$custom-dark: #000000;

JSON

{
  "hex": "#172e77",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 119
  },
  "hsl": {
    "h": 225.625,
    "s": 67.606,
    "l": 27.843
  },
  "oklch": {
    "l": 0.33355,
    "c": 0.12824,
    "h": 266.1
  },
  "luminance": 0.03468
}

Semantic roles & 50–950 ramp

primary

#172E77

secondary

#AC923E

accent

#C13DEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #172E77

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

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