#172A90#172A90

#172A90 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.1% C 0.168 H 267.5°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#172A90
RGB	rgb(23, 42, 144)
HSL	hsl(231, 72%, 33%)
HSV	hsv(231, 84%, 56%)
CMYK	cmyk(84%, 70.8%, 0%, 43.5%)
CIE-LAB	lab(23.17, 32.57, -57.79)
CIE-LCH	lch(23.17, 66.34, 299.41°)
OKLab	oklab(35.08% -0.0073 -0.1675)
OKLCH	oklch(35.08% 0.168 267.5)
XYZ	xyz(6.2136, 3.8510, 26.7960)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A90 #907D17

analogous

#176690 #172A90 #411790

triadic

#172A90 #90172A #2A9017

tetradic

#172A90 #901766 #907D17 #179041

square

#172A90 #901766 #907D17 #179041

split-complementary

#172A90 #904117 #669017

monochromatic

#060B26 #0F1B5B #172A90 #1F39C5 #415AE1

Accessibility & contrast

On white

11.86

#172A90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#172A90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A90

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A90	#FFFFFF	#000000	##FFFFFF
##172A90	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D93

Deuteranopia (green-blind)

#00318E

Tritanopia (blue-blind)

#004659

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #172a90;
/* rgb */ color: rgb(23, 42, 144);
/* oklch */ color: oklch(35.1% 0.168 267.5);

Tailwind

colors: {
  custom: {
    50: '#6c64b2',
    500: '#172a90',
    950: '#000000',
  },
}

SCSS

$custom: #172a90;
$custom-light: #6c64b2;
$custom-dark: #000000;

JSON

{
  "hex": "#172a90",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 144
  },
  "hsl": {
    "h": 230.579,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.35077,
    "c": 0.16764,
    "h": 267.5
  },
  "luminance": 0.03852
}

Semantic roles & 50–950 ramp

primary

#172A90

secondary

#C1AD42

accent

#D339EF

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #172A90

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

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