#172D75#172D75

#172D75 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.0% C 0.127 H 266.4°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#172D75
RGB	rgb(23, 45, 117)
HSL	hsl(226, 67%, 27%)
HSV	hsv(226, 80%, 46%)
CMYK	cmyk(80.3%, 61.5%, 0%, 54.1%)
CIE-LAB	lab(21.37, 19.83, -43.76)
CIE-LCH	lch(21.37, 48.05, 294.38°)
OKLab	oklab(32.96% -0.008 -0.1264)
OKLCH	oklch(32.96% 0.127 266.4)
XYZ	xyz(4.5015, 3.3428, 17.2341)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172D75 #755F17

analogous

#175C75 #172D75 #301775

triadic

#172D75 #75172D #2D7517

tetradic

#172D75 #75175C #755F17 #177530

square

#172D75 #75175C #755F17 #177530

split-complementary

#172D75 #753017 #5C7517

monochromatic

#050A1A #0D1942 #172D75 #2141A8 #3057D6

Accessibility & contrast

On white

12.59

#172D75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#172D75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172D75

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172D75	#FFFFFF	#000000	##FFFFFF
##172D75	1.00	12.59	1.67	12.59
#FFFFFF	12.59	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003877

Deuteranopia (green-blind)

#002F74

Tritanopia (blue-blind)

#003F4C

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #172d75;
/* rgb */ color: rgb(23, 45, 117);
/* oklch */ color: oklch(33.0% 0.127 266.4);

Tailwind

colors: {
  custom: {
    50: '#65659d',
    500: '#172d75',
    950: '#000000',
  },
}

SCSS

$custom: #172d75;
$custom-light: #65659d;
$custom-dark: #000000;

JSON

{
  "hex": "#172d75",
  "rgb": {
    "r": 23,
    "g": 45,
    "b": 117
  },
  "hsl": {
    "h": 225.957,
    "s": 67.143,
    "l": 27.451
  },
  "oklch": {
    "l": 0.32957,
    "c": 0.12666,
    "h": 266.4
  },
  "luminance": 0.03343
}

Semantic roles & 50–950 ramp

primary

#172D75

secondary

#AA913D

accent

#C23EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #172D75

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

Preview Lab → · Contrast checker → · Palette generator →