#1643A0#1643A0

#1643A0 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.4% C 0.159 H 262.4°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#1643A0
RGB	rgb(22, 67, 160)
HSL	hsl(220, 76%, 36%)
HSV	hsv(220, 86%, 63%)
CMYK	cmyk(86.3%, 58.1%, 0%, 37.3%)
CIE-LAB	lab(31.17, 21.87, -54.49)
CIE-LCH	lch(31.17, 58.71, 291.87°)
OKLab	oklab(41.44% -0.021 -0.1575)
OKLCH	oklch(41.44% 0.159 262.4)
XYZ	xyz(8.6809, 6.7219, 34.0908)
Luminance	0.0672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1643A0 #A07316

analogous

#1688A0 #1643A0 #2E16A0

triadic

#1643A0 #A01643 #43A016

tetradic

#1643A0 #A01688 #A07316 #16A02E

square

#1643A0 #A01688 #A07316 #16A02E

split-complementary

#1643A0 #A02E16 #88A016

monochromatic

#071634 #0F2C6A #1643A0 #1D5AD6 #4A7DE6

Accessibility & contrast

On white

8.96

#1643A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#1643A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1643A0

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1643A0	#FFFFFF	#000000	##FFFFFF
##1643A0	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A3

Deuteranopia (green-blind)

#00439E

Tritanopia (blue-blind)

#005B6B

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1643a0;
/* rgb */ color: rgb(22, 67, 160);
/* oklch */ color: oklch(41.4% 0.159 262.4);

Tailwind

colors: {
  custom: {
    50: '#6e76bd',
    500: '#1643a0',
    950: '#000000',
  },
}

SCSS

$custom: #1643a0;
$custom-light: #6e76bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1643a0",
  "rgb": {
    "r": 22,
    "g": 67,
    "b": 160
  },
  "hsl": {
    "h": 220.435,
    "s": 75.824,
    "l": 35.686
  },
  "oklch": {
    "l": 0.41437,
    "c": 0.15893,
    "h": 262.4
  },
  "luminance": 0.06723
}

Semantic roles & 50–950 ramp

primary

#1643A0

secondary

#C89F4A

accent

#B535F2

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1643A0

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

Preview Lab → · Contrast checker → · Palette generator →