#172381#172381

#172381 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.2% C 0.156 H 269.0°. Best body text is #FFFFFF at 13.18:1 contrast (WCAG AA passes).

Color values

HEX	#172381
RGB	rgb(23, 35, 129)
HSL	hsl(233, 70%, 30%)
HSV	hsv(233, 82%, 51%)
CMYK	cmyk(82.2%, 72.9%, 0%, 49.4%)
CIE-LAB	lab(19.92, 31.47, -53.77)
CIE-LCH	lch(19.92, 62.30, 300.34°)
OKLab	oklab(32.25% -0.0027 -0.1558)
OKLCH	oklch(32.25% 0.156 269)
XYZ	xyz(4.9155, 2.9686, 21.0786)
Luminance	0.0297 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172381 #817517

analogous

#175881 #172381 #401781

triadic

#172381 #811723 #238117

tetradic

#172381 #811758 #817517 #178140

square

#172381 #811758 #817517 #178140

split-complementary

#172381 #814017 #588117

monochromatic

#05071A #0E154D #172381 #2031B5 #374ADB

Accessibility & contrast

On white

13.18

#172381 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#172381 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172381

13.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172381	#FFFFFF	#000000	##FFFFFF
##172381	1.00	13.18	1.59	13.18
#FFFFFF	13.18	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003584

Deuteranopia (green-blind)

#002B7F

Tritanopia (blue-blind)

#003D4F

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #172381;
/* rgb */ color: rgb(23, 35, 129);
/* oklch */ color: oklch(32.2% 0.156 269.0);

Tailwind

colors: {
  custom: {
    50: '#695ea7',
    500: '#172381',
    950: '#000000',
  },
}

SCSS

$custom: #172381;
$custom-light: #695ea7;
$custom-dark: #000000;

JSON

{
  "hex": "#172381",
  "rgb": {
    "r": 23,
    "g": 35,
    "b": 129
  },
  "hsl": {
    "h": 233.208,
    "s": 69.737,
    "l": 29.804
  },
  "oklch": {
    "l": 0.32249,
    "c": 0.15578,
    "h": 269
  },
  "luminance": 0.02969
}

Semantic roles & 50–950 ramp

primary

#172381

secondary

#B5A83E

accent

#D83BED

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#070410

muted

#7A797F

Preview Lab

Preview with #172381

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

Preview Lab → · Contrast checker → · Palette generator →