#406DCB#406DCB

#406DCB is a mid, vivid blue. Relative luminance 0.163; OKLCH L 55.2% C 0.154 H 263.1°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#406DCB
RGB	rgb(64, 109, 203)
HSL	hsl(221, 57%, 52%)
HSV	hsv(221, 68%, 80%)
CMYK	cmyk(68.5%, 46.3%, 0%, 20.4%)
CIE-LAB	lab(47.41, 15.69, -53.42)
CIE-LCH	lch(47.41, 55.67, 286.37°)
OKLab	oklab(55.2% -0.0186 -0.153)
OKLCH	oklch(55.2% 0.154 263.1)
XYZ	xyz(18.3587, 16.3372, 58.6742)
Luminance	0.1634 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#406DCB #CB9E40

analogous

#40B2CB #406DCB #5940CB

triadic

#406DCB #CB406D #6DCB40

tetradic

#406DCB #CB40B2 #CB9E40 #40CB59

square

#406DCB #CB40B2 #CB9E40 #40CB59

split-complementary

#406DCB #CB5940 #B2CB40

monochromatic

#1F3A72 #2C52A2 #406DCB #7092D8 #A0B7E5

Accessibility & contrast

On white

4.92

#406DCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#406DCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #406DCB

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##406DCB	#FFFFFF	#000000	##FFFFFF
##406DCB	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D77CF

Deuteranopia (green-blind)

#206AC9

Tritanopia (blue-blind)

#008392

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #406dcb;
/* rgb */ color: rgb(64, 109, 203);
/* oklch */ color: oklch(55.2% 0.154 263.1);

Tailwind

colors: {
  custom: {
    50: '#8496db',
    500: '#406dcb',
    950: '#000000',
  },
}

SCSS

$custom: #406dcb;
$custom-light: #8496db;
$custom-dark: #000000;

JSON

{
  "hex": "#406dcb",
  "rgb": {
    "r": 64,
    "g": 109,
    "b": 203
  },
  "hsl": {
    "h": 220.576,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.55195,
    "c": 0.15409,
    "h": 263.1
  },
  "luminance": 0.16339
}

Semantic roles & 50–950 ramp

primary

#406DCB

secondary

#D2BE95

accent

#AF47E0

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #406DCB

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

Preview Lab → · Contrast checker → · Palette generator →