#1646B4#1646B4

#1646B4 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.8% C 0.182 H 263.1°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#1646B4
RGB	rgb(22, 70, 180)
HSL	hsl(222, 78%, 40%)
HSV	hsv(222, 88%, 71%)
CMYK	cmyk(87.8%, 61.1%, 0%, 29.4%)
CIE-LAB	lab(33.66, 27.81, -62.38)
CIE-LCH	lch(33.66, 68.30, 294.03°)
OKLab	oklab(43.83% -0.0217 -0.1806)
OKLCH	oklch(43.83% 0.182 263.1)
XYZ	xyz(10.7563, 7.8448, 44.1184)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1646B4 #B48416

analogous

#1695B4 #1646B4 #3516B4

triadic

#1646B4 #B41646 #46B416

tetradic

#1646B4 #B41695 #B48416 #16B435

square

#1646B4 #B41695 #B48416 #16B435

split-complementary

#1646B4 #B43516 #95B416

monochromatic

#091C47 #0F317D #1646B4 #235EE4 #5A86EB

Accessibility & contrast

On white

8.17

#1646B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#1646B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1646B4

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1646B4	#FFFFFF	#000000	##FFFFFF
##1646B4	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B8

Deuteranopia (green-blind)

#0048B2

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1646b4;
/* rgb */ color: rgb(22, 70, 180);
/* oklch */ color: oklch(43.8% 0.182 263.1);

Tailwind

colors: {
  custom: {
    50: '#7478cb',
    500: '#1646b4',
    950: '#000000',
  },
}

SCSS

$custom: #1646b4;
$custom-light: #7478cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1646b4",
  "rgb": {
    "r": 22,
    "g": 70,
    "b": 180
  },
  "hsl": {
    "h": 221.772,
    "s": 78.218,
    "l": 39.608
  },
  "oklch": {
    "l": 0.43828,
    "c": 0.18193,
    "h": 263.1
  },
  "luminance": 0.07846
}

Semantic roles & 50–950 ramp

primary

#1646B4

secondary

#CEAA58

accent

#BA33F5

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1646B4

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

Preview Lab → · Contrast checker → · Palette generator →