#172D86#172D86

#172D86 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.6% C 0.151 H 266.9°. Best body text is #FFFFFF at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#172D86
RGB	rgb(23, 45, 134)
HSL	hsl(228, 71%, 31%)
HSV	hsv(228, 83%, 53%)
CMYK	cmyk(82.8%, 66.4%, 0%, 47.5%)
CIE-LAB	lab(22.93, 26.69, -51.97)
CIE-LCH	lch(22.93, 58.42, 297.18°)
OKLab	oklab(34.6% -0.0081 -0.1504)
OKLCH	oklch(34.6% 0.151 266.9)
XYZ	xyz(5.5933, 3.7795, 22.9844)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172D86 #867017

analogous

#176486 #172D86 #381786

triadic

#172D86 #86172D #2D8617

tetradic

#172D86 #861764 #867017 #178638

square

#172D86 #861764 #867017 #178638

split-complementary

#172D86 #863817 #648617

monochromatic

#050A1E #0E1B52 #172D86 #203FBA #3A5ADD

Accessibility & contrast

On white

11.96

#172D86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#172D86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172D86

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172D86	#FFFFFF	#000000	##FFFFFF
##172D86	1.00	11.96	1.76	11.96
#FFFFFF	11.96	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C89

Deuteranopia (green-blind)

#003284

Tritanopia (blue-blind)

#004555

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #172d86;
/* rgb */ color: rgb(23, 45, 134);
/* oklch */ color: oklch(34.6% 0.151 266.9);

Tailwind

colors: {
  custom: {
    50: '#6965aa',
    500: '#172d86',
    950: '#000000',
  },
}

SCSS

$custom: #172d86;
$custom-light: #6965aa;
$custom-dark: #000000;

JSON

{
  "hex": "#172d86",
  "rgb": {
    "r": 23,
    "g": 45,
    "b": 134
  },
  "hsl": {
    "h": 228.108,
    "s": 70.701,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34596,
    "c": 0.15067,
    "h": 266.9
  },
  "luminance": 0.0378
}

Semantic roles & 50–950 ramp

primary

#172D86

secondary

#BAA23F

accent

#CA3AED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070510

muted

#7A7A7F

Preview Lab

Preview with #172D86

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

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