#406ED3#406ED3

#406ED3 is a mid, vivid blue. Relative luminance 0.169; OKLCH L 55.9% C 0.164 H 263.6°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#406ED3
RGB	rgb(64, 110, 211)
HSL	hsl(221, 63%, 54%)
HSV	hsv(221, 70%, 83%)
CMYK	cmyk(69.7%, 47.9%, 0%, 17.3%)
CIE-LAB	lab(48.19, 17.94, -56.74)
CIE-LCH	lch(48.19, 59.51, 287.55°)
OKLab	oklab(55.95% -0.0183 -0.1627)
OKLCH	oklch(55.95% 0.164 263.6)
XYZ	xyz(19.4440, 16.9430, 63.8610)
Luminance	0.1694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#406ED3 #D3A540

analogous

#40B8D3 #406ED3 #5C40D3

triadic

#406ED3 #D3406E #6ED340

tetradic

#406ED3 #D340B8 #D3A540 #40D35C

square

#406ED3 #D340B8 #D3A540 #40D35C

split-complementary

#406ED3 #D35C40 #B8D340

monochromatic

#1D3A7C #2852AE #406ED3 #7294DE #A3BAEA

Accessibility & contrast

On white

4.78

#406ED3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#406ED3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #406ED3

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##406ED3	#FFFFFF	#000000	##FFFFFF
##406ED3	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#377AD7

Deuteranopia (green-blind)

#0E6CD1

Tritanopia (blue-blind)

#008696

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #406ed3;
/* rgb */ color: rgb(64, 110, 211);
/* oklch */ color: oklch(55.9% 0.164 263.6);

Tailwind

colors: {
  custom: {
    50: '#8697e1',
    500: '#406ed3',
    950: '#000000',
  },
}

SCSS

$custom: #406ed3;
$custom-light: #8697e1;
$custom-dark: #000000;

JSON

{
  "hex": "#406ed3",
  "rgb": {
    "r": 64,
    "g": 110,
    "b": 211
  },
  "hsl": {
    "h": 221.224,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.55948,
    "c": 0.16376,
    "h": 263.6
  },
  "luminance": 0.16945
}

Semantic roles & 50–950 ramp

primary

#406ED3

secondary

#D7C398

accent

#B242E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #406ED3

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

Preview Lab → · Contrast checker → · Palette generator →