#172181#172181

#172181 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.9% C 0.158 H 269.3°. Best body text is #FFFFFF at 13.37:1 contrast (WCAG AA passes).

Color values

HEX	#172181
RGB	rgb(23, 33, 129)
HSL	hsl(234, 70%, 30%)
HSV	hsv(234, 82%, 51%)
CMYK	cmyk(82.2%, 74.4%, 0%, 49.4%)
CIE-LAB	lab(19.45, 32.76, -54.54)
CIE-LCH	lch(19.45, 63.62, 300.99°)
OKLab	oklab(31.91% -0.0018 -0.158)
OKLCH	oklch(31.91% 0.158 269.3)
XYZ	xyz(4.8583, 2.8543, 21.0595)
Luminance	0.0285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#172181 #817717

analogous

#175681 #172181 #421781

triadic

#172181 #811721 #218117

tetradic

#172181 #811756 #817717 #178142

square

#172181 #811756 #817717 #178142

split-complementary

#172181 #814217 #568117

monochromatic

#05071A #0E144D #172181 #202EB5 #3747DB

Accessibility & contrast

On white

13.37

#172181 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#172181 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #172181

13.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##172181	#FFFFFF	#000000	##FFFFFF
##172181	1.00	13.37	1.57	13.37
#FFFFFF	13.37	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003484

Deuteranopia (green-blind)

#002A7F

Tritanopia (blue-blind)

#003C4F

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #172181;
/* rgb */ color: rgb(23, 33, 129);
/* oklch */ color: oklch(31.9% 0.158 269.3);

Tailwind

colors: {
  custom: {
    50: '#695da7',
    500: '#172181',
    950: '#000000',
  },
}

SCSS

$custom: #172181;
$custom-light: #695da7;
$custom-dark: #000000;

JSON

{
  "hex": "#172181",
  "rgb": {
    "r": 23,
    "g": 33,
    "b": 129
  },
  "hsl": {
    "h": 234.34,
    "s": 69.737,
    "l": 29.804
  },
  "oklch": {
    "l": 0.31913,
    "c": 0.15801,
    "h": 269.3
  },
  "luminance": 0.02855
}

Semantic roles & 50–950 ramp

primary

#172181

secondary

#B5AA3E

accent

#DC3BED

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#070410

muted

#7A797F

Preview Lab

Preview with #172181

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

Preview Lab → · Contrast checker → · Palette generator →