#406DCF#406DCF

#406DCF is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.5% C 0.160 H 263.5°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#406DCF
RGB	rgb(64, 109, 207)
HSL	hsl(221, 60%, 53%)
HSV	hsv(221, 69%, 81%)
CMYK	cmyk(69.1%, 47.3%, 0%, 18.8%)
CIE-LAB	lab(47.66, 17.13, -55.31)
CIE-LCH	lch(47.66, 57.90, 287.21°)
OKLab	oklab(55.47% -0.018 -0.1585)
OKLCH	oklch(55.47% 0.16 263.5)
XYZ	xyz(18.8415, 16.5303, 61.2171)
Luminance	0.1653 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#406DCF #CFA240

analogous

#40B4CF #406DCF #5A40CF

triadic

#406DCF #CF406D #6DCF40

tetradic

#406DCF #CF40B4 #CFA240 #40CF5A

square

#406DCF #CF40B4 #CFA240 #40CF5A

split-complementary

#406DCF #CF5A40 #B4CF40

monochromatic

#1E3A77 #2A52A8 #406DCF #7192DB #A2B8E8

Accessibility & contrast

On white

4.88

#406DCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#406DCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #406DCF

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##406DCF	#FFFFFF	#000000	##FFFFFF
##406DCF	1.00	4.88	4.31	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3978D3

Deuteranopia (green-blind)

#166BCD

Tritanopia (blue-blind)

#008494

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #406dcf;
/* rgb */ color: rgb(64, 109, 207);
/* oklch */ color: oklch(55.5% 0.160 263.5);

Tailwind

colors: {
  custom: {
    50: '#8596de',
    500: '#406dcf',
    950: '#000000',
  },
}

SCSS

$custom: #406dcf;
$custom-light: #8596de;
$custom-dark: #000000;

JSON

{
  "hex": "#406dcf",
  "rgb": {
    "r": 64,
    "g": 109,
    "b": 207
  },
  "hsl": {
    "h": 221.119,
    "s": 59.833,
    "l": 53.137
  },
  "oklch": {
    "l": 0.55465,
    "c": 0.15954,
    "h": 263.5
  },
  "luminance": 0.16532
}

Semantic roles & 50–950 ramp

primary

#406DCF

secondary

#D4C197

accent

#B145E3

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #406DCF

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

Preview Lab → · Contrast checker → · Palette generator →