#406FD3#406FD3

#406FD3 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.2% C 0.163 H 263.2°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#406FD3
RGB	rgb(64, 111, 211)
HSL	hsl(221, 63%, 54%)
HSV	hsv(221, 70%, 83%)
CMYK	cmyk(69.7%, 47.4%, 0%, 17.3%)
CIE-LAB	lab(48.46, 17.31, -56.30)
CIE-LCH	lch(48.46, 58.91, 287.09°)
OKLab	oklab(56.16% -0.0192 -0.1614)
OKLCH	oklch(56.16% 0.163 263.2)
XYZ	xyz(19.5525, 17.1600, 63.8972)
Luminance	0.1716 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#406FD3 #D3A440

analogous

#40B9D3 #406FD3 #5B40D3

triadic

#406FD3 #D3406F #6FD340

tetradic

#406FD3 #D340B9 #D3A440 #40D35B

square

#406FD3 #D340B9 #D3A440 #40D35B

split-complementary

#406FD3 #D35B40 #B9D340

monochromatic

#1D3B7C #2853AE #406FD3 #7295DE #A3BAEA

Accessibility & contrast

On white

4.74

#406FD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#406FD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #406FD3

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##406FD3	#FFFFFF	#000000	##FFFFFF
##406FD3	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A7AD7

Deuteranopia (green-blind)

#146DD1

Tritanopia (blue-blind)

#008697

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #406fd3;
/* rgb */ color: rgb(64, 111, 211);
/* oklch */ color: oklch(56.2% 0.163 263.2);

Tailwind

colors: {
  custom: {
    50: '#8697e1',
    500: '#406fd3',
    950: '#000000',
  },
}

SCSS

$custom: #406fd3;
$custom-light: #8697e1;
$custom-dark: #000000;

JSON

{
  "hex": "#406fd3",
  "rgb": {
    "r": 64,
    "g": 111,
    "b": 211
  },
  "hsl": {
    "h": 220.816,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.56157,
    "c": 0.16256,
    "h": 263.2
  },
  "luminance": 0.17162
}

Semantic roles & 50–950 ramp

primary

#406FD3

secondary

#D7C398

accent

#B142E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #406FD3

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

Preview Lab → · Contrast checker → · Palette generator →