#406FCB#406FCB

#406FCB is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.6% C 0.152 H 262.3°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#406FCB
RGB	rgb(64, 111, 203)
HSL	hsl(220, 57%, 52%)
HSV	hsv(220, 68%, 80%)
CMYK	cmyk(68.5%, 45.3%, 0%, 20.4%)
CIE-LAB	lab(47.97, 14.43, -52.53)
CIE-LCH	lch(47.97, 54.48, 285.36°)
OKLab	oklab(55.62% -0.0204 -0.1503)
OKLCH	oklch(55.62% 0.152 262.3)
XYZ	xyz(18.5745, 16.7688, 58.7461)
Luminance	0.1677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#406FCB #CB9C40

analogous

#40B5CB #406FCB #5640CB

triadic

#406FCB #CB406F #6FCB40

tetradic

#406FCB #CB40B5 #CB9C40 #40CB56

square

#406FCB #CB40B5 #CB9C40 #40CB56

split-complementary

#406FCB #CB5640 #B5CB40

monochromatic

#1F3B72 #2C54A2 #406FCB #7093D8 #A0B8E5

Accessibility & contrast

On white

4.82

#406FCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#406FCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #406FCB

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##406FCB	#FFFFFF	#000000	##FFFFFF
##406FCB	1.00	4.82	4.35	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4179CE

Deuteranopia (green-blind)

#266CC9

Tritanopia (blue-blind)

#008493

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #406fcb;
/* rgb */ color: rgb(64, 111, 203);
/* oklch */ color: oklch(55.6% 0.152 262.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#406fcb",
  "rgb": {
    "r": 64,
    "g": 111,
    "b": 203
  },
  "hsl": {
    "h": 219.712,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.5562,
    "c": 0.1517,
    "h": 262.3
  },
  "luminance": 0.16771
}

Semantic roles & 50–950 ramp

primary

#406FCB

secondary

#D2BD95

accent

#AD47E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #406FCB

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

Preview Lab → · Contrast checker → · Palette generator →