#1640A0#1640A0

#1640A0 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.8% C 0.163 H 263.2°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#1640A0
RGB	rgb(22, 64, 160)
HSL	hsl(222, 76%, 36%)
HSV	hsv(222, 86%, 63%)
CMYK	cmyk(86.3%, 60%, 0%, 37.3%)
CIE-LAB	lab(30.34, 23.93, -55.84)
CIE-LCH	lch(30.34, 60.75, 293.19°)
OKLab	oklab(40.82% -0.0193 -0.1615)
OKLCH	oklch(40.82% 0.163 263.2)
XYZ	xyz(8.5072, 6.3744, 34.0329)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1640A0 #A07616

analogous

#1685A0 #1640A0 #3116A0

triadic

#1640A0 #A01640 #40A016

tetradic

#1640A0 #A01685 #A07616 #16A031

square

#1640A0 #A01685 #A07616 #16A031

split-complementary

#1640A0 #A03116 #85A016

monochromatic

#071534 #0F2A6A #1640A0 #1D56D6 #4A7AE6

Accessibility & contrast

On white

9.23

#1640A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#1640A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1640A0

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1640A0	#FFFFFF	#000000	##FFFFFF
##1640A0	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA3

Deuteranopia (green-blind)

#00419E

Tritanopia (blue-blind)

#005969

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1640a0;
/* rgb */ color: rgb(22, 64, 160);
/* oklch */ color: oklch(40.8% 0.163 263.2);

Tailwind

colors: {
  custom: {
    50: '#6f74bd',
    500: '#1640a0',
    950: '#000000',
  },
}

SCSS

$custom: #1640a0;
$custom-light: #6f74bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1640a0",
  "rgb": {
    "r": 22,
    "g": 64,
    "b": 160
  },
  "hsl": {
    "h": 221.739,
    "s": 75.824,
    "l": 35.686
  },
  "oklch": {
    "l": 0.40815,
    "c": 0.16268,
    "h": 263.2
  },
  "luminance": 0.06375
}

Semantic roles & 50–950 ramp

primary

#1640A0

secondary

#C8A14A

accent

#B935F2

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1640A0

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

Preview Lab → · Contrast checker → · Palette generator →