#172780#172780

#172780 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.9% C 0.150 H 268.3°. Best body text is #FFFFFF at 12.82:1 contrast (WCAG AA passes).

Color values

HEX	#172780
RGB	rgb(23, 39, 128)
HSL	hsl(231, 70%, 30%)
HSV	hsv(231, 82%, 50%)
CMYK	cmyk(82%, 69.5%, 0%, 49.8%)
CIE-LAB	lab(20.79, 28.43, -51.70)
CIE-LCH	lch(20.79, 59.00, 298.81°)
OKLab	oklab(32.85% -0.0046 -0.1497)
OKLCH	oklch(32.85% 0.15 268.3)
XYZ	xyz(4.9738, 3.1911, 20.7717)
Luminance	0.0319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172780 #807017

analogous

#175C80 #172780 #3C1780

triadic

#172780 #801727 #278017

tetradic

#172780 #80175C #807017 #17803C

square

#172780 #80175C #807017 #17803C

split-complementary

#172780 #803C17 #5C8017

monochromatic

#05081A #0E174C #172780 #2037B4 #3650DB

Accessibility & contrast

On white

12.82

#172780 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#172780 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172780

12.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172780	#FFFFFF	#000000	##FFFFFF
##172780	1.00	12.82	1.64	12.82
#FFFFFF	12.82	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003783

Deuteranopia (green-blind)

#002D7E

Tritanopia (blue-blind)

#003F50

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #172780;
/* rgb */ color: rgb(23, 39, 128);
/* oklch */ color: oklch(32.9% 0.150 268.3);

Tailwind

colors: {
  custom: {
    50: '#6861a6',
    500: '#172780',
    950: '#000000',
  },
}

SCSS

$custom: #172780;
$custom-light: #6861a6;
$custom-dark: #000000;

JSON

{
  "hex": "#172780",
  "rgb": {
    "r": 23,
    "g": 39,
    "b": 128
  },
  "hsl": {
    "h": 230.857,
    "s": 69.536,
    "l": 29.608
  },
  "oklch": {
    "l": 0.32853,
    "c": 0.14977,
    "h": 268.3
  },
  "luminance": 0.03192
}

Semantic roles & 50–950 ramp

primary

#172780

secondary

#B4A23E

accent

#D13BEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #172780

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

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