#406BCB#406BCB

#406BCB is a mid, vivid blue. Relative luminance 0.159; OKLCH L 54.8% C 0.156 H 263.8°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#406BCB
RGB	rgb(64, 107, 203)
HSL	hsl(221, 57%, 52%)
HSV	hsv(221, 68%, 80%)
CMYK	cmyk(68.5%, 47.3%, 0%, 20.4%)
CIE-LAB	lab(46.86, 16.95, -54.30)
CIE-LCH	lch(46.86, 56.89, 287.34°)
OKLab	oklab(54.77% -0.0168 -0.1556)
OKLCH	oklch(54.77% 0.156 263.8)
XYZ	xyz(18.1477, 15.9154, 58.6039)
Luminance	0.1592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#406BCB #CBA040

analogous

#40B1CB #406BCB #5B40CB

triadic

#406BCB #CB406B #6BCB40

tetradic

#406BCB #CB40B1 #CBA040 #40CB5B

square

#406BCB #CB40B1 #CBA040 #40CB5B

split-complementary

#406BCB #CB5B40 #B1CB40

monochromatic

#1F3972 #2C50A2 #406BCB #7090D8 #A0B6E5

Accessibility & contrast

On white

5.02

#406BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#406BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #406BCB

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##406BCB	#FFFFFF	#000000	##FFFFFF
##406BCB	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3876CF

Deuteranopia (green-blind)

#1869C9

Tritanopia (blue-blind)

#008191

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #406bcb;
/* rgb */ color: rgb(64, 107, 203);
/* oklch */ color: oklch(54.8% 0.156 263.8);

Tailwind

colors: {
  custom: {
    50: '#8494db',
    500: '#406bcb',
    950: '#000000',
  },
}

SCSS

$custom: #406bcb;
$custom-light: #8494db;
$custom-dark: #000000;

JSON

{
  "hex": "#406bcb",
  "rgb": {
    "r": 64,
    "g": 107,
    "b": 203
  },
  "hsl": {
    "h": 221.439,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.54773,
    "c": 0.15649,
    "h": 263.8
  },
  "luminance": 0.15917
}

Semantic roles & 50–950 ramp

primary

#406BCB

secondary

#D2BF95

accent

#B147E0

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #406BCB

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

Preview Lab → · Contrast checker → · Palette generator →