#405FB2#405FB2

#405FB2 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.5% C 0.136 H 266.2°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#405FB2
RGB	rgb(64, 95, 178)
HSL	hsl(224, 47%, 47%)
HSV	hsv(224, 64%, 70%)
CMYK	cmyk(64%, 46.6%, 0%, 30.2%)
CIE-LAB	lab(41.98, 15.64, -47.64)
CIE-LCH	lch(41.98, 50.14, 288.18°)
OKLab	oklab(50.53% -0.009 -0.1362)
OKLCH	oklch(50.53% 0.136 266.2)
XYZ	xyz(14.2397, 12.4875, 43.7708)
Luminance	0.1249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405FB2 #B29340

analogous

#4098B2 #405FB2 #5A40B2

triadic

#405FB2 #B2405F #5FB240

tetradic

#405FB2 #B24098 #B29340 #40B25A

square

#405FB2 #B24098 #B29340 #40B25A

split-complementary

#405FB2 #B25A40 #98B240

monochromatic

#202F58 #304785 #405FB2 #6781C8 #94A7D8

Accessibility & contrast

On white

6.00

#405FB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#405FB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405FB2

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405FB2	#FFFFFF	#000000	##FFFFFF
##405FB2	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3669B5

Deuteranopia (green-blind)

#225EB0

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #405fb2;
/* rgb */ color: rgb(64, 95, 178);
/* oklch */ color: oklch(50.5% 0.136 266.2);

Tailwind

colors: {
  custom: {
    50: '#808cc9',
    500: '#405fb2',
    950: '#000000',
  },
}

SCSS

$custom: #405fb2;
$custom-light: #808cc9;
$custom-dark: #000000;

JSON

{
  "hex": "#405fb2",
  "rgb": {
    "r": 64,
    "g": 95,
    "b": 178
  },
  "hsl": {
    "h": 223.684,
    "s": 47.107,
    "l": 47.451
  },
  "oklch": {
    "l": 0.50533,
    "c": 0.13648,
    "h": 266.2
  },
  "luminance": 0.12489
}

Semantic roles & 50–950 ramp

primary

#405FB2

secondary

#C4B48A

accent

#B251D7

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #405FB2

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

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