#1646B3#1646B3

#1646B3 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.7% C 0.181 H 263.1°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#1646B3
RGB	rgb(22, 70, 179)
HSL	hsl(222, 78%, 39%)
HSV	hsv(222, 88%, 70%)
CMYK	cmyk(87.7%, 60.9%, 0%, 29.8%)
CIE-LAB	lab(33.57, 27.41, -61.93)
CIE-LCH	lch(33.57, 67.72, 293.88°)
OKLab	oklab(43.74% -0.0217 -0.1793)
OKLCH	oklch(43.74% 0.181 263.1)
XYZ	xyz(10.6548, 7.8042, 43.5839)
Luminance	0.0781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1646B3 #B38316

analogous

#1695B3 #1646B3 #3516B3

triadic

#1646B3 #B31646 #46B316

tetradic

#1646B3 #B31695 #B38316 #16B335

square

#1646B3 #B31695 #B38316 #16B335

split-complementary

#1646B3 #B33516 #95B316

monochromatic

#091B46 #0F317C #1646B3 #225DE4 #5985EB

Accessibility & contrast

On white

8.20

#1646B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#1646B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1646B3

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1646B3	#FFFFFF	#000000	##FFFFFF
##1646B3	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B7

Deuteranopia (green-blind)

#0048B1

Tritanopia (blue-blind)

#006275

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1646b3;
/* rgb */ color: rgb(22, 70, 179);
/* oklch */ color: oklch(43.7% 0.181 263.1);

Tailwind

colors: {
  custom: {
    50: '#7378cb',
    500: '#1646b3',
    950: '#000000',
  },
}

SCSS

$custom: #1646b3;
$custom-light: #7378cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1646b3",
  "rgb": {
    "r": 22,
    "g": 70,
    "b": 179
  },
  "hsl": {
    "h": 221.656,
    "s": 78.109,
    "l": 39.412
  },
  "oklch": {
    "l": 0.43737,
    "c": 0.18061,
    "h": 263.1
  },
  "luminance": 0.07806
}

Semantic roles & 50–950 ramp

primary

#1646B3

secondary

#CEA957

accent

#B933F5

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1646B3

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

Preview Lab → · Contrast checker → · Palette generator →