#172A84#172A84

#172A84 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.8% C 0.152 H 267.6°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#172A84
RGB	rgb(23, 42, 132)
HSL	hsl(230, 70%, 30%)
HSV	hsv(230, 83%, 52%)
CMYK	cmyk(82.6%, 68.2%, 0%, 48.2%)
CIE-LAB	lab(21.96, 27.95, -52.31)
CIE-LCH	lch(21.96, 59.31, 298.12°)
OKLab	oklab(33.82% -0.0064 -0.1515)
OKLCH	oklch(33.82% 0.152 267.6)
XYZ	xyz(5.3447, 3.5034, 22.2199)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172A84 #847117

analogous

#176184 #172A84 #3A1784

triadic

#172A84 #84172A #2A8417

tetradic

#172A84 #841761 #847117 #17843A

square

#172A84 #841761 #847117 #17843A

split-complementary

#172A84 #843A17 #618417

monochromatic

#05091C #0E1950 #172A84 #203BB8 #3955DC

Accessibility & contrast

On white

12.35

#172A84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#172A84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172A84

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172A84	#FFFFFF	#000000	##FFFFFF
##172A84	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A87

Deuteranopia (green-blind)

#002F82

Tritanopia (blue-blind)

#004253

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #172a84;
/* rgb */ color: rgb(23, 42, 132);
/* oklch */ color: oklch(33.8% 0.152 267.6);

Tailwind

colors: {
  custom: {
    50: '#6963a9',
    500: '#172a84',
    950: '#000000',
  },
}

SCSS

$custom: #172a84;
$custom-light: #6963a9;
$custom-dark: #000000;

JSON

{
  "hex": "#172a84",
  "rgb": {
    "r": 23,
    "g": 42,
    "b": 132
  },
  "hsl": {
    "h": 229.541,
    "s": 70.323,
    "l": 30.392
  },
  "oklch": {
    "l": 0.33824,
    "c": 0.15161,
    "h": 267.6
  },
  "luminance": 0.03504
}

Semantic roles & 50–950 ramp

primary

#172A84

secondary

#B8A33F

accent

#CE3BED

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#070510

muted

#7A797F

Preview Lab

Preview with #172A84

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

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