#172370#172370

#172370 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.4% C 0.132 H 269.5°. Best body text is #FFFFFF at 13.90:1 contrast (WCAG AA passes).

Color values

HEX	#172370
RGB	rgb(23, 35, 112)
HSL	hsl(232, 66%, 26%)
HSV	hsv(232, 79%, 44%)
CMYK	cmyk(79.5%, 68.8%, 0%, 56.1%)
CIE-LAB	lab(18.16, 24.89, -45.79)
CIE-LCH	lch(18.16, 52.12, 298.53°)
OKLab	oklab(30.44% -0.0011 -0.1325)
OKLCH	oklch(30.44% 0.132 269.5)
XYZ	xyz(3.8780, 2.5537, 15.6146)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172370 #706417

analogous

#175070 #172370 #381770

triadic

#172370 #701723 #237017

tetradic

#172370 #701750 #706417 #177038

square

#172370 #701750 #706417 #177038

split-complementary

#172370 #703817 #507017

monochromatic

#050819 #0D133D #172370 #2133A3 #2D44D4

Accessibility & contrast

On white

13.90

#172370 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#172370 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172370

13.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172370	#FFFFFF	#000000	##FFFFFF
##172370	1.00	13.90	1.51	13.90
#FFFFFF	13.90	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003172

Deuteranopia (green-blind)

#00286F

Tritanopia (blue-blind)

#003846

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #172370;
/* rgb */ color: rgb(23, 35, 112);
/* oklch */ color: oklch(30.4% 0.132 269.5);

Tailwind

colors: {
  custom: {
    50: '#645e9a',
    500: '#172370',
    950: '#000000',
  },
}

SCSS

$custom: #172370;
$custom-light: #645e9a;
$custom-dark: #000000;

JSON

{
  "hex": "#172370",
  "rgb": {
    "r": 23,
    "g": 35,
    "b": 112
  },
  "hsl": {
    "h": 231.91,
    "s": 65.926,
    "l": 26.471
  },
  "oklch": {
    "l": 0.3044,
    "c": 0.13247,
    "h": 269.5
  },
  "luminance": 0.02554
}

Semantic roles & 50–950 ramp

primary

#172370

secondary

#A6983D

accent

#D23FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #172370

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

Preview Lab → · Contrast checker → · Palette generator →