#172C84#172C84

#172C84 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.2% C 0.149 H 267.1°. Best body text is #FFFFFF at 12.14:1 contrast (WCAG AA passes).

Color values

HEX	#172C84
RGB	rgb(23, 44, 132)
HSL	hsl(228, 70%, 30%)
HSV	hsv(228, 83%, 52%)
CMYK	cmyk(82.6%, 66.7%, 0%, 48.2%)
CIE-LAB	lab(22.47, 26.58, -51.46)
CIE-LCH	lch(22.47, 57.92, 297.32°)
OKLab	oklab(34.2% -0.0075 -0.149)
OKLCH	oklch(34.2% 0.149 267.1)
XYZ	xyz(5.4174, 3.6488, 22.2441)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172C84 #846F17

analogous

#176384 #172C84 #381784

triadic

#172C84 #84172C #2C8417

tetradic

#172C84 #841763 #846F17 #178438

square

#172C84 #841763 #846F17 #178438

split-complementary

#172C84 #843817 #638417

monochromatic

#05091C #0E1B50 #172C84 #203DB8 #3958DC

Accessibility & contrast

On white

12.14

#172C84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#172C84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172C84

12.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172C84	#FFFFFF	#000000	##FFFFFF
##172C84	1.00	12.14	1.73	12.14
#FFFFFF	12.14	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B87

Deuteranopia (green-blind)

#003182

Tritanopia (blue-blind)

#004354

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #172c84;
/* rgb */ color: rgb(23, 44, 132);
/* oklch */ color: oklch(34.2% 0.149 267.1);

Tailwind

colors: {
  custom: {
    50: '#6965a9',
    500: '#172c84',
    950: '#000000',
  },
}

SCSS

$custom: #172c84;
$custom-light: #6965a9;
$custom-dark: #000000;

JSON

{
  "hex": "#172c84",
  "rgb": {
    "r": 23,
    "g": 44,
    "b": 132
  },
  "hsl": {
    "h": 228.44,
    "s": 70.323,
    "l": 30.392
  },
  "oklch": {
    "l": 0.34204,
    "c": 0.14916,
    "h": 267.1
  },
  "luminance": 0.03649
}

Semantic roles & 50–950 ramp

primary

#172C84

secondary

#B8A13F

accent

#CB3BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070510

muted

#7A7A7F

Preview Lab

Preview with #172C84

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

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