#172E72#172E72

#172E72 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 32.9% C 0.121 H 265.8°. Best body text is #FFFFFF at 12.57:1 contrast (WCAG AA passes).

Color values

HEX	#172E72
RGB	rgb(23, 46, 114)
HSL	hsl(225, 66%, 27%)
HSV	hsv(225, 80%, 45%)
CMYK	cmyk(79.8%, 59.6%, 0%, 55.3%)
CIE-LAB	lab(21.40, 17.88, -41.79)
CIE-LCH	lch(21.40, 45.46, 293.17°)
OKLab	oklab(32.9% -0.0089 -0.1206)
OKLCH	oklch(32.9% 0.121 265.8)
XYZ	xyz(4.3665, 3.3506, 16.3329)
Luminance	0.0335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E72 #725B17

analogous

#175C72 #172E72 #2E1772

triadic

#172E72 #72172E #2E7217

tetradic

#172E72 #72175C #725B17 #17722E

square

#172E72 #72175C #725B17 #17722E

split-complementary

#172E72 #722E17 #5C7217

monochromatic

#050A19 #0D193F #172E72 #2143A5 #2E59D5

Accessibility & contrast

On white

12.57

#172E72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#172E72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E72

12.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E72	#FFFFFF	#000000	##FFFFFF
##172E72	1.00	12.57	1.67	12.57
#FFFFFF	12.57	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003874

Deuteranopia (green-blind)

#002F71

Tritanopia (blue-blind)

#003F4B

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #172e72;
/* rgb */ color: rgb(23, 46, 114);
/* oklch */ color: oklch(32.9% 0.121 265.8);

Tailwind

colors: {
  custom: {
    50: '#64669b',
    500: '#172e72',
    950: '#000000',
  },
}

SCSS

$custom: #172e72;
$custom-light: #64669b;
$custom-dark: #000000;

JSON

{
  "hex": "#172e72",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 114
  },
  "hsl": {
    "h": 224.835,
    "s": 66.423,
    "l": 26.863
  },
  "oklch": {
    "l": 0.32898,
    "c": 0.12093,
    "h": 265.8
  },
  "luminance": 0.03351
}

Semantic roles & 50–950 ramp

primary

#172E72

secondary

#A88D3D

accent

#BE3EE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #172E72

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

Preview Lab → · Contrast checker → · Palette generator →