#172C90#172C90

#172C90 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.4% C 0.165 H 267.2°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#172C90
RGB	rgb(23, 44, 144)
HSL	hsl(230, 72%, 33%)
HSV	hsv(230, 84%, 56%)
CMYK	cmyk(84%, 69.4%, 0%, 43.5%)
CIE-LAB	lab(23.66, 31.26, -56.99)
CIE-LCH	lch(23.66, 65.00, 298.74°)
OKLab	oklab(35.43% -0.0081 -0.1651)
OKLCH	oklch(35.43% 0.165 267.2)
XYZ	xyz(6.2863, 3.9964, 26.8202)
Luminance	0.0400 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172C90 #907B17

analogous

#176890 #172C90 #3F1790

triadic

#172C90 #90172C #2C9017

tetradic

#172C90 #901768 #907B17 #17903F

square

#172C90 #901768 #907B17 #17903F

split-complementary

#172C90 #903F17 #689017

monochromatic

#060C26 #0F1C5B #172C90 #1F3CC5 #415DE1

Accessibility & contrast

On white

11.67

#172C90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#172C90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172C90

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172C90	#FFFFFF	#000000	##FFFFFF
##172C90	1.00	11.67	1.80	11.67
#FFFFFF	11.67	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E93

Deuteranopia (green-blind)

#00338E

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #172c90;
/* rgb */ color: rgb(23, 44, 144);
/* oklch */ color: oklch(35.4% 0.165 267.2);

Tailwind

colors: {
  custom: {
    50: '#6c65b2',
    500: '#172c90',
    950: '#000000',
  },
}

SCSS

$custom: #172c90;
$custom-light: #6c65b2;
$custom-dark: #000000;

JSON

{
  "hex": "#172c90",
  "rgb": {
    "r": 23,
    "g": 44,
    "b": 144
  },
  "hsl": {
    "h": 229.587,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.35431,
    "c": 0.16534,
    "h": 267.2
  },
  "luminance": 0.03997
}

Semantic roles & 50–950 ramp

primary

#172C90

secondary

#C1AB42

accent

#CF39EF

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080511

muted

#7B7A80

Preview Lab

Preview with #172C90

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

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