#172D73#172D73

#172D73 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 32.8% C 0.124 H 266.2°. Best body text is #FFFFFF at 12.66:1 contrast (WCAG AA passes).

Color values

HEX	#172D73
RGB	rgb(23, 45, 115)
HSL	hsl(226, 67%, 27%)
HSV	hsv(226, 80%, 45%)
CMYK	cmyk(80%, 60.9%, 0%, 54.9%)
CIE-LAB	lab(21.19, 19.02, -42.76)
CIE-LCH	lch(21.19, 46.80, 293.97°)
OKLab	oklab(32.77% -0.0081 -0.1235)
OKLCH	oklch(32.77% 0.124 266.2)
XYZ	xyz(4.3852, 3.2962, 16.6215)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172D73 #735D17

analogous

#175B73 #172D73 #2F1773

triadic

#172D73 #73172D #2D7317

tetradic

#172D73 #73175B #735D17 #17732F

square

#172D73 #73175B #735D17 #17732F

split-complementary

#172D73 #732F17 #5B7317

monochromatic

#050A1A #0D1940 #172D73 #2141A6 #2F57D5

Accessibility & contrast

On white

12.66

#172D73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#172D73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172D73

12.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172D73	#FFFFFF	#000000	##FFFFFF
##172D73	1.00	12.66	1.66	12.66
#FFFFFF	12.66	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003775

Deuteranopia (green-blind)

#002F72

Tritanopia (blue-blind)

#003F4B

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #172d73;
/* rgb */ color: rgb(23, 45, 115);
/* oklch */ color: oklch(32.8% 0.124 266.2);

Tailwind

colors: {
  custom: {
    50: '#64659c',
    500: '#172d73',
    950: '#000000',
  },
}

SCSS

$custom: #172d73;
$custom-light: #64659c;
$custom-dark: #000000;

JSON

{
  "hex": "#172d73",
  "rgb": {
    "r": 23,
    "g": 45,
    "b": 115
  },
  "hsl": {
    "h": 225.652,
    "s": 66.667,
    "l": 27.059
  },
  "oklch": {
    "l": 0.32772,
    "c": 0.12375,
    "h": 266.2
  },
  "luminance": 0.03297
}

Semantic roles & 50–950 ramp

primary

#172D73

secondary

#A98F3D

accent

#C13EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #172D73

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

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