#406DD1#406DD1

#406DD1 is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.6% C 0.162 H 263.7°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#406DD1
RGB	rgb(64, 109, 209)
HSL	hsl(221, 61%, 54%)
HSV	hsv(221, 69%, 82%)
CMYK	cmyk(69.4%, 47.8%, 0%, 18%)
CIE-LAB	lab(47.79, 17.85, -56.25)
CIE-LCH	lch(47.79, 59.01, 287.61°)
OKLab	oklab(55.6% -0.0177 -0.1613)
OKLCH	oklch(55.6% 0.162 263.7)
XYZ	xyz(19.0876, 16.6288, 62.5130)
Luminance	0.1663 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#406DD1 #D1A440

analogous

#40B5D1 #406DD1 #5B40D1

triadic

#406DD1 #D1406D #6DD140

tetradic

#406DD1 #D140B5 #D1A440 #40D15B

square

#406DD1 #D140B5 #D1A440 #40D15B

split-complementary

#406DD1 #D15B40 #B5D140

monochromatic

#1D3A79 #2951AB #406DD1 #7193DD #A3B8E9

Accessibility & contrast

On white

4.85

#406DD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#406DD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #406DD1

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##406DD1	#FFFFFF	#000000	##FFFFFF
##406DD1	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3778D5

Deuteranopia (green-blind)

#106BCF

Tritanopia (blue-blind)

#008495

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #406dd1;
/* rgb */ color: rgb(64, 109, 209);
/* oklch */ color: oklch(55.6% 0.162 263.7);

Tailwind

colors: {
  custom: {
    50: '#8596e0',
    500: '#406dd1',
    950: '#000000',
  },
}

SCSS

$custom: #406dd1;
$custom-light: #8596e0;
$custom-dark: #000000;

JSON

{
  "hex": "#406dd1",
  "rgb": {
    "r": 64,
    "g": 109,
    "b": 209
  },
  "hsl": {
    "h": 221.379,
    "s": 61.181,
    "l": 53.529
  },
  "oklch": {
    "l": 0.55602,
    "c": 0.16225,
    "h": 263.7
  },
  "luminance": 0.16631
}

Semantic roles & 50–950 ramp

primary

#406DD1

secondary

#D5C297

accent

#B244E4

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #406DD1

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

Preview Lab → · Contrast checker → · Palette generator →