#172970#172970

#172970 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.6% C 0.125 H 267.6°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#172970
RGB	rgb(23, 41, 112)
HSL	hsl(228, 66%, 26%)
HSV	hsv(228, 79%, 44%)
CMYK	cmyk(79.5%, 63.4%, 0%, 56.1%)
CIE-LAB	lab(19.79, 20.65, -43.12)
CIE-LCH	lch(19.79, 47.81, 295.59°)
OKLab	oklab(31.64% -0.0052 -0.1246)
OKLCH	oklch(31.64% 0.125 267.6)
XYZ	xyz(4.0699, 2.9374, 15.6786)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172970 #705E17

analogous

#175670 #172970 #321770

triadic

#172970 #701729 #297017

tetradic

#172970 #701756 #705E17 #177032

square

#172970 #701756 #705E17 #177032

split-complementary

#172970 #703217 #567017

monochromatic

#050919 #0D163D #172970 #213CA3 #2D4FD4

Accessibility & contrast

On white

13.23

#172970 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#172970 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172970

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172970	#FFFFFF	#000000	##FFFFFF
##172970	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003472

Deuteranopia (green-blind)

#002C6F

Tritanopia (blue-blind)

#003B48

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172970;
/* rgb */ color: rgb(23, 41, 112);
/* oklch */ color: oklch(31.6% 0.125 267.6);

Tailwind

colors: {
  custom: {
    50: '#64629a',
    500: '#172970',
    950: '#000000',
  },
}

SCSS

$custom: #172970;
$custom-light: #64629a;
$custom-dark: #000000;

JSON

{
  "hex": "#172970",
  "rgb": {
    "r": 23,
    "g": 41,
    "b": 112
  },
  "hsl": {
    "h": 227.865,
    "s": 65.926,
    "l": 26.471
  },
  "oklch": {
    "l": 0.31644,
    "c": 0.12469,
    "h": 267.6
  },
  "luminance": 0.02938
}

Semantic roles & 50–950 ramp

primary

#172970

secondary

#A6913D

accent

#C63FE9

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #172970

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

Preview Lab → · Contrast checker → · Palette generator →