#406DB3#406DB3

#406DB3 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 53.7% C 0.121 H 258.9°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#406DB3
RGB	rgb(64, 109, 179)
HSL	hsl(217, 47%, 48%)
HSV	hsv(217, 64%, 70%)
CMYK	cmyk(64.2%, 39.1%, 0%, 29.8%)
CIE-LAB	lab(46.02, 7.13, -41.79)
CIE-LCH	lch(46.02, 42.39, 279.68°)
OKLab	oklab(53.66% -0.0232 -0.1188)
OKLCH	oklch(53.66% 0.121 258.9)
XYZ	xyz(15.7168, 15.2805, 44.7602)
Luminance	0.1528 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#406DB3 #B38640

analogous

#40A6B3 #406DB3 #4D40B3

triadic

#406DB3 #B3406D #6DB340

tetradic

#406DB3 #B340A6 #B38640 #40B34D

square

#406DB3 #B340A6 #B38640 #40B34D

split-complementary

#406DB3 #B34D40 #A6B340

monochromatic

#203659 #305286 #406DB3 #678EC9 #94AFD9

Accessibility & contrast

On white

5.18

#406DB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#406DB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #406DB3

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##406DB3	#FFFFFF	#000000	##FFFFFF
##406DB3	1.00	5.18	4.06	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E73B6

Deuteranopia (green-blind)

#3E68B2

Tritanopia (blue-blind)

#007D87

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #406db3;
/* rgb */ color: rgb(64, 109, 179);
/* oklch */ color: oklch(53.7% 0.121 258.9);

Tailwind

colors: {
  custom: {
    50: '#8096ca',
    500: '#406db3',
    950: '#000000',
  },
}

SCSS

$custom: #406db3;
$custom-light: #8096ca;
$custom-dark: #000000;

JSON

{
  "hex": "#406db3",
  "rgb": {
    "r": 64,
    "g": 109,
    "b": 179
  },
  "hsl": {
    "h": 216.522,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53663,
    "c": 0.12106,
    "h": 258.9
  },
  "luminance": 0.15282
}

Semantic roles & 50–950 ramp

primary

#406DB3

secondary

#C4AE8A

accent

#A251D7

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #406DB3

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

Preview Lab → · Contrast checker → · Palette generator →