#406FD4#406FD4

#406FD4 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.2% C 0.164 H 263.3°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#406FD4
RGB	rgb(64, 111, 212)
HSL	hsl(221, 63%, 54%)
HSV	hsv(221, 70%, 83%)
CMYK	cmyk(69.8%, 47.6%, 0%, 16.9%)
CIE-LAB	lab(48.52, 17.67, -56.77)
CIE-LCH	lch(48.52, 59.46, 287.29°)
OKLab	oklab(56.23% -0.0191 -0.1628)
OKLCH	oklch(56.23% 0.164 263.3)
XYZ	xyz(19.6783, 17.2103, 64.5594)
Luminance	0.1721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#406FD4 #D4A540

analogous

#40B9D4 #406FD4 #5B40D4

triadic

#406FD4 #D4406F #6FD440

tetradic

#406FD4 #D440B9 #D4A540 #40D45B

square

#406FD4 #D440B9 #D4A540 #40D45B

split-complementary

#406FD4 #D45B40 #B9D440

monochromatic

#1C3B7D #2753AF #406FD4 #7295DF #A4BAEA

Accessibility & contrast

On white

4.73

#406FD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#406FD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #406FD4

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##406FD4	#FFFFFF	#000000	##FFFFFF
##406FD4	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#397AD8

Deuteranopia (green-blind)

#116DD2

Tritanopia (blue-blind)

#008797

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #406fd4;
/* rgb */ color: rgb(64, 111, 212);
/* oklch */ color: oklch(56.2% 0.164 263.3);

Tailwind

colors: {
  custom: {
    50: '#8697e2',
    500: '#406fd4',
    950: '#000000',
  },
}

SCSS

$custom: #406fd4;
$custom-light: #8697e2;
$custom-dark: #000000;

JSON

{
  "hex": "#406fd4",
  "rgb": {
    "r": 64,
    "g": 111,
    "b": 212
  },
  "hsl": {
    "h": 220.946,
    "s": 63.248,
    "l": 54.118
  },
  "oklch": {
    "l": 0.56226,
    "c": 0.16391,
    "h": 263.3
  },
  "luminance": 0.17212
}

Semantic roles & 50–950 ramp

primary

#406FD4

secondary

#D7C398

accent

#B242E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #406FD4

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

Preview Lab → · Contrast checker → · Palette generator →