#172A7E#172A7E

#172A7E is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.2% C 0.143 H 267.5°. Best body text is #FFFFFF at 12.58:1 contrast (WCAG AA passes).

Color values

HEX	#172A7E
RGB	rgb(23, 42, 126)
HSL	hsl(229, 69%, 29%)
HSV	hsv(229, 82%, 49%)
CMYK	cmyk(81.7%, 66.7%, 0%, 50.6%)
CIE-LAB	lab(21.37, 25.58, -49.48)
CIE-LCH	lch(21.37, 55.70, 297.34°)
OKLab	oklab(33.22% -0.0061 -0.1432)
OKLCH	oklch(33.22% 0.143 267.5)
XYZ	xyz(4.9459, 3.3439, 20.1194)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A7E #7E6B17

analogous

#175E7E #172A7E #38177E

triadic

#172A7E #7E172A #2A7E17

tetradic

#172A7E #7E175E #7E6B17 #177E38

square

#172A7E #7E175E #7E6B17 #177E38

split-complementary

#172A7E #7E3817 #5E7E17

monochromatic

#05091A #0E194A #172A7E #203BB2 #3554DA

Accessibility & contrast

On white

12.58

#172A7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#172A7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A7E

12.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A7E	#FFFFFF	#000000	##FFFFFF
##172A7E	1.00	12.58	1.67	12.58
#FFFFFF	12.58	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003881

Deuteranopia (green-blind)

#002E7C

Tritanopia (blue-blind)

#004050

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #172a7e;
/* rgb */ color: rgb(23, 42, 126);
/* oklch */ color: oklch(33.2% 0.143 267.5);

Tailwind

colors: {
  custom: {
    50: '#6763a4',
    500: '#172a7e',
    950: '#000000',
  },
}

SCSS

$custom: #172a7e;
$custom-light: #6763a4;
$custom-dark: #000000;

JSON

{
  "hex": "#172a7e",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 126
  },
  "hsl": {
    "h": 228.932,
    "s": 69.128,
    "l": 29.216
  },
  "oklch": {
    "l": 0.33216,
    "c": 0.14334,
    "h": 267.5
  },
  "luminance": 0.03344
}

Semantic roles & 50–950 ramp

primary

#172A7E

secondary

#B39D3E

accent

#CB3CEC

background

#F6F5FA

surface

#EBEAF4

border

#C6C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #172A7E

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

Preview Lab → · Contrast checker → · Palette generator →