#406CD3#406CD3

#406CD3 is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.5% C 0.166 H 264.3°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#406CD3
RGB	rgb(64, 108, 211)
HSL	hsl(222, 63%, 54%)
HSV	hsv(222, 70%, 83%)
CMYK	cmyk(69.7%, 48.8%, 0%, 17.3%)
CIE-LAB	lab(47.64, 19.20, -57.62)
CIE-LCH	lch(47.64, 60.73, 288.43°)
OKLab	oklab(55.53% -0.0166 -0.1653)
OKLCH	oklch(55.53% 0.166 264.3)
XYZ	xyz(19.2306, 16.5163, 63.7899)
Luminance	0.1652 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#406CD3 #D3A740

analogous

#40B6D3 #406CD3 #5E40D3

triadic

#406CD3 #D3406C #6CD340

tetradic

#406CD3 #D340B6 #D3A740 #40D35E

square

#406CD3 #D340B6 #D3A740 #40D35E

split-complementary

#406CD3 #D35E40 #B6D340

monochromatic

#1D397C #2850AE #406CD3 #7292DE #A3B9EA

Accessibility & contrast

On white

4.88

#406CD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#406CD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #406CD3

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##406CD3	#FFFFFF	#000000	##FFFFFF
##406CD3	1.00	4.88	4.30	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3278D7

Deuteranopia (green-blind)

#006BD1

Tritanopia (blue-blind)

#008495

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #406cd3;
/* rgb */ color: rgb(64, 108, 211);
/* oklch */ color: oklch(55.5% 0.166 264.3);

Tailwind

colors: {
  custom: {
    50: '#8695e1',
    500: '#406cd3',
    950: '#000000',
  },
}

SCSS

$custom: #406cd3;
$custom-light: #8695e1;
$custom-dark: #000000;

JSON

{
  "hex": "#406cd3",
  "rgb": {
    "r": 64,
    "g": 108,
    "b": 211
  },
  "hsl": {
    "h": 222.041,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.55533,
    "c": 0.16617,
    "h": 264.3
  },
  "luminance": 0.16518
}

Semantic roles & 50–950 ramp

primary

#406CD3

secondary

#D7C498

accent

#B542E6

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #406CD3

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

Preview Lab → · Contrast checker → · Palette generator →