#172E7A#172E7A

#172E7A is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.6% C 0.133 H 266.3°. Best body text is #FFFFFF at 12.29:1 contrast (WCAG AA passes).

Color values

HEX	#172E7A
RGB	rgb(23, 46, 122)
HSL	hsl(226, 68%, 28%)
HSV	hsv(226, 81%, 48%)
CMYK	cmyk(81.1%, 62.3%, 0%, 52.2%)
CIE-LAB	lab(22.09, 21.17, -45.77)
CIE-LCH	lch(22.09, 50.43, 294.82°)
OKLab	oklab(33.63% -0.0086 -0.1323)
OKLCH	oklch(33.63% 0.133 266.3)
XYZ	xyz(4.8420, 3.5407, 18.8368)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172E7A #7A6317

analogous

#175F7A #172E7A #31177A

triadic

#172E7A #7A172E #2E7A17

tetradic

#172E7A #7A175F #7A6317 #177A31

square

#172E7A #7A175F #7A6317 #177A31

split-complementary

#172E7A #7A3117 #5F7A17

monochromatic

#050A1A #0D1B47 #172E7A #2141AD #3359D9

Accessibility & contrast

On white

12.29

#172E7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#172E7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172E7A

12.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172E7A	#FFFFFF	#000000	##FFFFFF
##172E7A	1.00	12.29	1.71	12.29
#FFFFFF	12.29	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A7D

Deuteranopia (green-blind)

#003079

Tritanopia (blue-blind)

#00414F

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #172e7a;
/* rgb */ color: rgb(23, 46, 122);
/* oklch */ color: oklch(33.6% 0.133 266.3);

Tailwind

colors: {
  custom: {
    50: '#6666a1',
    500: '#172e7a',
    950: '#000000',
  },
}

SCSS

$custom: #172e7a;
$custom-light: #6666a1;
$custom-dark: #000000;

JSON

{
  "hex": "#172e7a",
  "rgb": {
    "r": 23,
    "g": 46,
    "b": 122
  },
  "hsl": {
    "h": 226.061,
    "s": 68.276,
    "l": 28.431
  },
  "oklch": {
    "l": 0.33634,
    "c": 0.13256,
    "h": 266.3
  },
  "luminance": 0.03541
}

Semantic roles & 50–950 ramp

primary

#172E7A

secondary

#AF953E

accent

#C33DEB

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #172E7A

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

Preview Lab → · Contrast checker → · Palette generator →