#1720A0#1720A0

#1720A0 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.4% C 0.198 H 268.2°. Best body text is #FFFFFF at 12.00:1 contrast (WCAG AA passes).

Color values

HEX	#1720A0
RGB	rgb(23, 32, 160)
HSL	hsl(236, 75%, 36%)
HSV	hsv(236, 86%, 63%)
CMYK	cmyk(85.6%, 80%, 0%, 37.3%)
CIE-LAB	lab(22.84, 44.29, -68.19)
CIE-LCH	lch(22.84, 81.31, 303.01°)
OKLab	oklab(35.37% -0.0063 -0.1976)
OKLCH	oklch(35.37% 0.198 268.2)
XYZ	xyz(7.2128, 3.7524, 33.5950)
Luminance	0.0375 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1720A0 #A09717

analogous

#1764A0 #1720A0 #5217A0

triadic

#1720A0 #A01720 #20A017

tetradic

#1720A0 #A01764 #A09717 #17A052

square

#1720A0 #A01764 #A09717 #17A052

split-complementary

#1720A0 #A05217 #64A017

monochromatic

#080B35 #0F156A #1720A0 #1F2BD6 #4C56E5

Accessibility & contrast

On white

12.00

#1720A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1720A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1720A0

12.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1720A0	#FFFFFF	#000000	##FFFFFF
##1720A0	1.00	12.00	1.75	12.00
#FFFFFF	12.00	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA4

Deuteranopia (green-blind)

#002F9E

Tritanopia (blue-blind)

#004860

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1720a0;
/* rgb */ color: rgb(23, 32, 160);
/* oklch */ color: oklch(35.4% 0.198 268.2);

Tailwind

colors: {
  custom: {
    50: '#725ebd',
    500: '#1720a0',
    950: '#000000',
  },
}

SCSS

$custom: #1720a0;
$custom-light: #725ebd;
$custom-dark: #000000;

JSON

{
  "hex": "#1720a0",
  "rgb": {
    "r": 23,
    "g": 32,
    "b": 160
  },
  "hsl": {
    "h": 236.058,
    "s": 74.863,
    "l": 35.882
  },
  "oklch": {
    "l": 0.35365,
    "c": 0.19768,
    "h": 268.2
  },
  "luminance": 0.03753
}

Semantic roles & 50–950 ramp

primary

#1720A0

secondary

#C7BF4C

accent

#E536F1

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1720A0

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

Preview Lab → · Contrast checker → · Palette generator →