#172F6F#172F6F

#172F6F is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.9% C 0.115 H 265.1°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#172F6F
RGB	rgb(23, 47, 111)
HSL	hsl(224, 66%, 26%)
HSV	hsv(224, 79%, 44%)
CMYK	cmyk(79.3%, 57.7%, 0%, 56.5%)
CIE-LAB	lab(21.44, 15.92, -39.79)
CIE-LCH	lch(21.44, 42.86, 291.81°)
OKLab	oklab(32.85% -0.0099 -0.1147)
OKLCH	oklch(32.85% 0.115 265.1)
XYZ	xyz(4.2381, 3.3624, 15.4615)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172F6F #6F5717

analogous

#175B6F #172F6F #2B176F

triadic

#172F6F #6F172F #2F6F17

tetradic

#172F6F #6F175B #6F5717 #176F2B

square

#172F6F #6F175B #6F5717 #176F2B

split-complementary

#172F6F #6F2B17 #5B6F17

monochromatic

#050B19 #0C1A3C #172F6F #2244A2 #2D5AD3

Accessibility & contrast

On white

12.56

#172F6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#172F6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172F6F

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172F6F	#FFFFFF	#000000	##FFFFFF
##172F6F	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003871

Deuteranopia (green-blind)

#00306E

Tritanopia (blue-blind)

#003F4A

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #172f6f;
/* rgb */ color: rgb(23, 47, 111);
/* oklch */ color: oklch(32.9% 0.115 265.1);

Tailwind

colors: {
  custom: {
    50: '#636799',
    500: '#172f6f',
    950: '#000000',
  },
}

SCSS

$custom: #172f6f;
$custom-light: #636799;
$custom-dark: #000000;

JSON

{
  "hex": "#172f6f",
  "rgb": {
    "r": 23,
    "g": 47,
    "b": 111
  },
  "hsl": {
    "h": 223.636,
    "s": 65.672,
    "l": 26.275
  },
  "oklch": {
    "l": 0.32852,
    "c": 0.11513,
    "h": 265.1
  },
  "luminance": 0.03363
}

Semantic roles & 50–950 ramp

primary

#172F6F

secondary

#A5883D

accent

#BA3FE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #172F6F

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

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