#406DD3#406DD3

#406DD3 is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.7% C 0.165 H 263.9°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#406DD3
RGB	rgb(64, 109, 211)
HSL	hsl(222, 63%, 54%)
HSV	hsv(222, 70%, 83%)
CMYK	cmyk(69.7%, 48.3%, 0%, 17.3%)
CIE-LAB	lab(47.92, 18.57, -57.18)
CIE-LCH	lch(47.92, 60.12, 287.99°)
OKLab	oklab(55.74% -0.0174 -0.164)
OKLCH	oklch(55.74% 0.165 263.9)
XYZ	xyz(19.3367, 16.7284, 63.8252)
Luminance	0.1673 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#406DD3 #D3A640

analogous

#40B6D3 #406DD3 #5D40D3

triadic

#406DD3 #D3406D #6DD340

tetradic

#406DD3 #D340B6 #D3A640 #40D35D

square

#406DD3 #D340B6 #D3A640 #40D35D

split-complementary

#406DD3 #D35D40 #B6D340

monochromatic

#1D3A7C #2851AE #406DD3 #7293DE #A3B9EA

Accessibility & contrast

On white

4.83

#406DD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#406DD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #406DD3

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##406DD3	#FFFFFF	#000000	##FFFFFF
##406DD3	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3579D7

Deuteranopia (green-blind)

#066BD1

Tritanopia (blue-blind)

#008596

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #406dd3;
/* rgb */ color: rgb(64, 109, 211);
/* oklch */ color: oklch(55.7% 0.165 263.9);

Tailwind

colors: {
  custom: {
    50: '#8696e1',
    500: '#406dd3',
    950: '#000000',
  },
}

SCSS

$custom: #406dd3;
$custom-light: #8696e1;
$custom-dark: #000000;

JSON

{
  "hex": "#406dd3",
  "rgb": {
    "r": 64,
    "g": 109,
    "b": 211
  },
  "hsl": {
    "h": 221.633,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.5574,
    "c": 0.16495,
    "h": 263.9
  },
  "luminance": 0.1673
}

Semantic roles & 50–950 ramp

primary

#406DD3

secondary

#D7C498

accent

#B442E6

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #406DD3

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

Preview Lab → · Contrast checker → · Palette generator →