#406CCB#406CCB

#406CCB is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.0% C 0.155 H 263.5°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#406CCB
RGB	rgb(64, 108, 203)
HSL	hsl(221, 57%, 52%)
HSV	hsv(221, 68%, 80%)
CMYK	cmyk(68.5%, 46.8%, 0%, 20.4%)
CIE-LAB	lab(47.14, 16.32, -53.86)
CIE-LCH	lch(47.14, 56.28, 286.86°)
OKLab	oklab(54.98% -0.0177 -0.1543)
OKLCH	oklch(54.98% 0.155 263.5)
XYZ	xyz(18.2526, 16.1251, 58.6389)
Luminance	0.1613 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#406CCB #CB9F40

analogous

#40B2CB #406CCB #5940CB

triadic

#406CCB #CB406C #6CCB40

tetradic

#406CCB #CB40B2 #CB9F40 #40CB59

square

#406CCB #CB40B2 #CB9F40 #40CB59

split-complementary

#406CCB #CB5940 #B2CB40

monochromatic

#1F3972 #2C51A2 #406CCB #7091D8 #A0B6E5

Accessibility & contrast

On white

4.97

#406CCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#406CCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #406CCB

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##406CCB	#FFFFFF	#000000	##FFFFFF
##406CCB	1.00	4.97	4.23	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B77CF

Deuteranopia (green-blind)

#1C6AC9

Tritanopia (blue-blind)

#008292

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #406ccb;
/* rgb */ color: rgb(64, 108, 203);
/* oklch */ color: oklch(55.0% 0.155 263.5);

Tailwind

colors: {
  custom: {
    50: '#8495db',
    500: '#406ccb',
    950: '#000000',
  },
}

SCSS

$custom: #406ccb;
$custom-light: #8495db;
$custom-dark: #000000;

JSON

{
  "hex": "#406ccb",
  "rgb": {
    "r": 64,
    "g": 108,
    "b": 203
  },
  "hsl": {
    "h": 221.007,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.54983,
    "c": 0.15529,
    "h": 263.5
  },
  "luminance": 0.16127
}

Semantic roles & 50–950 ramp

primary

#406CCB

secondary

#D2BF95

accent

#B047E0

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #406CCB

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

Preview Lab → · Contrast checker → · Palette generator →