#172B6F#172B6F

#172B6F is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.0% C 0.121 H 266.8°. Best body text is #FFFFFF at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#172B6F
RGB	rgb(23, 43, 111)
HSL	hsl(226, 66%, 26%)
HSV	hsv(226, 79%, 44%)
CMYK	cmyk(79.3%, 61.3%, 0%, 56.5%)
CIE-LAB	lab(20.27, 18.81, -41.69)
CIE-LCH	lch(20.27, 45.74, 294.28°)
OKLab	oklab(31.97% -0.0067 -0.1204)
OKLCH	oklch(31.97% 0.121 266.8)
XYZ	xyz(4.0855, 3.0572, 15.4106)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172B6F #6F5B17

analogous

#17576F #172B6F #2F176F

triadic

#172B6F #6F172B #2B6F17

tetradic

#172B6F #6F1757 #6F5B17 #176F2F

square

#172B6F #6F1757 #6F5B17 #176F2F

split-complementary

#172B6F #6F2F17 #576F17

monochromatic

#050A19 #0C173C #172B6F #223FA2 #2D53D3

Accessibility & contrast

On white

13.03

#172B6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#172B6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172B6F

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172B6F	#FFFFFF	#000000	##FFFFFF
##172B6F	1.00	13.03	1.61	13.03
#FFFFFF	13.03	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003571

Deuteranopia (green-blind)

#002D6E

Tritanopia (blue-blind)

#003C48

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #172b6f;
/* rgb */ color: rgb(23, 43, 111);
/* oklch */ color: oklch(32.0% 0.121 266.8);

Tailwind

colors: {
  custom: {
    50: '#636399',
    500: '#172b6f',
    950: '#000000',
  },
}

SCSS

$custom: #172b6f;
$custom-light: #636399;
$custom-dark: #000000;

JSON

{
  "hex": "#172b6f",
  "rgb": {
    "r": 23,
    "g": 43,
    "b": 111
  },
  "hsl": {
    "h": 226.364,
    "s": 65.672,
    "l": 26.275
  },
  "oklch": {
    "l": 0.31974,
    "c": 0.12055,
    "h": 266.8
  },
  "luminance": 0.03058
}

Semantic roles & 50–950 ramp

primary

#172B6F

secondary

#A58D3D

accent

#C23FE9

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #172B6F

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

Preview Lab → · Contrast checker → · Palette generator →