#406ECB#406ECB

#406ECB is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.4% C 0.153 H 262.7°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#406ECB
RGB	rgb(64, 110, 203)
HSL	hsl(220, 57%, 52%)
HSV	hsv(220, 68%, 80%)
CMYK	cmyk(68.5%, 45.8%, 0%, 20.4%)
CIE-LAB	lab(47.69, 15.06, -52.97)
CIE-LCH	lch(47.69, 55.07, 285.87°)
OKLab	oklab(55.41% -0.0195 -0.1516)
OKLCH	oklch(55.41% 0.153 262.7)
XYZ	xyz(18.4660, 16.5518, 58.7100)
Luminance	0.1655 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#406ECB #CB9D40

analogous

#40B4CB #406ECB #5840CB

triadic

#406ECB #CB406E #6ECB40

tetradic

#406ECB #CB40B4 #CB9D40 #40CB58

square

#406ECB #CB40B4 #CB9D40 #40CB58

split-complementary

#406ECB #CB5840 #B4CB40

monochromatic

#1F3A72 #2C53A2 #406ECB #7093D8 #A0B7E5

Accessibility & contrast

On white

4.87

#406ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#406ECB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #406ECB

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##406ECB	#FFFFFF	#000000	##FFFFFF
##406ECB	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F78CE

Deuteranopia (green-blind)

#236BC9

Tritanopia (blue-blind)

#008492

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #406ecb;
/* rgb */ color: rgb(64, 110, 203);
/* oklch */ color: oklch(55.4% 0.153 262.7);

Tailwind

colors: {
  custom: {
    50: '#8497db',
    500: '#406ecb',
    950: '#000000',
  },
}

SCSS

$custom: #406ecb;
$custom-light: #8497db;
$custom-dark: #000000;

JSON

{
  "hex": "#406ecb",
  "rgb": {
    "r": 64,
    "g": 110,
    "b": 203
  },
  "hsl": {
    "h": 220.144,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.55407,
    "c": 0.15289,
    "h": 262.7
  },
  "luminance": 0.16554
}

Semantic roles & 50–950 ramp

primary

#406ECB

secondary

#D2BE95

accent

#AE47E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #406ECB

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

Preview Lab → · Contrast checker → · Palette generator →