#1718A0#1718A0

#1718A0 is a dark, highly saturated blue. Relative luminance 0.034; OKLCH L 34.4% C 0.204 H 268.6°. Best body text is #FFFFFF at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#1718A0
RGB	rgb(23, 24, 160)
HSL	hsl(240, 75%, 36%)
HSV	hsv(240, 86%, 63%)
CMYK	cmyk(85.6%, 85%, 0%, 37.3%)
CIE-LAB	lab(21.48, 48.27, -70.44)
CIE-LCH	lch(21.48, 85.39, 304.42°)
OKLab	oklab(34.42% -0.005 -0.2039)
OKLCH	oklch(34.42% 0.204 268.6)
XYZ	xyz(7.0230, 3.3726, 33.5317)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1718A0 #A09F17

analogous

#175CA0 #1718A0 #5A17A0

triadic

#1718A0 #A01718 #18A017

tetradic

#1718A0 #A0175C #A09F17 #17A05A

square

#1718A0 #A0175C #A09F17 #17A05A

split-complementary

#1718A0 #A05A17 #5CA017

monochromatic

#080835 #0F106A #1718A0 #1F20D6 #4C4DE5

Accessibility & contrast

On white

12.54

#1718A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1718A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1718A0

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1718A0	#FFFFFF	#000000	##FFFFFF
##1718A0	1.00	12.54	1.67	12.54
#FFFFFF	12.54	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA4

Deuteranopia (green-blind)

#002C9E

Tritanopia (blue-blind)

#00455F

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1718a0;
/* rgb */ color: rgb(23, 24, 160);
/* oklch */ color: oklch(34.4% 0.204 268.6);

Tailwind

colors: {
  custom: {
    50: '#735abe',
    500: '#1718a0',
    950: '#000000',
  },
}

SCSS

$custom: #1718a0;
$custom-light: #735abe;
$custom-dark: #000000;

JSON

{
  "hex": "#1718a0",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 160
  },
  "hsl": {
    "h": 239.562,
    "s": 74.863,
    "l": 35.882
  },
  "oklch": {
    "l": 0.3442,
    "c": 0.204,
    "h": 268.6
  },
  "luminance": 0.03373
}

Semantic roles & 50–950 ramp

primary

#1718A0

secondary

#C7C64C

accent

#F036F1

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1718A0

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

Preview Lab → · Contrast checker → · Palette generator →