#172973#172973

#172973 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 31.9% C 0.129 H 267.7°. Best body text is #FFFFFF at 13.12:1 contrast (WCAG AA passes).

Color values

HEX	#172973
RGB	rgb(23, 41, 115)
HSL	hsl(228, 67%, 27%)
HSV	hsv(228, 80%, 45%)
CMYK	cmyk(80%, 64.3%, 0%, 54.9%)
CIE-LAB	lab(20.07, 21.87, -44.60)
CIE-LCH	lch(20.07, 49.68, 296.12°)
OKLab	oklab(31.93% -0.0052 -0.1289)
OKLCH	oklch(31.93% 0.129 267.7)
XYZ	xyz(4.2397, 3.0054, 16.5730)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172973 #736117

analogous

#175773 #172973 #331773

triadic

#172973 #731729 #297317

tetradic

#172973 #731757 #736117 #177333

square

#172973 #731757 #736117 #177333

split-complementary

#172973 #733317 #577317

monochromatic

#05091A #0D1740 #172973 #213BA6 #2F50D5

Accessibility & contrast

On white

13.12

#172973 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#172973 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172973

13.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172973	#FFFFFF	#000000	##FFFFFF
##172973	1.00	13.12	1.60	13.12
#FFFFFF	13.12	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003575

Deuteranopia (green-blind)

#002C72

Tritanopia (blue-blind)

#003C49

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172973;
/* rgb */ color: rgb(23, 41, 115);
/* oklch */ color: oklch(31.9% 0.129 267.7);

Tailwind

colors: {
  custom: {
    50: '#64629c',
    500: '#172973',
    950: '#000000',
  },
}

SCSS

$custom: #172973;
$custom-light: #64629c;
$custom-dark: #000000;

JSON

{
  "hex": "#172973",
  "rgb": {
    "r": 23,
    "g": 41,
    "b": 115
  },
  "hsl": {
    "h": 228.261,
    "s": 66.667,
    "l": 27.059
  },
  "oklch": {
    "l": 0.31932,
    "c": 0.12904,
    "h": 267.7
  },
  "luminance": 0.03006
}

Semantic roles & 50–950 ramp

primary

#172973

secondary

#A9943D

accent

#C83EEA

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #172973

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

Preview Lab → · Contrast checker → · Palette generator →