#405BC5#405BC5

#405BC5 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.1% C 0.168 H 268.9°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#405BC5
RGB	rgb(64, 91, 197)
HSL	hsl(228, 53%, 51%)
HSV	hsv(228, 68%, 77%)
CMYK	cmyk(67.5%, 53.8%, 0%, 22.7%)
CIE-LAB	lab(42.16, 25.00, -58.43)
CIE-LCH	lch(42.16, 63.56, 293.16°)
OKLab	oklab(51.07% -0.0031 -0.168)
OKLCH	oklch(51.07% 0.168 268.9)
XYZ	xyz(15.9300, 12.6019, 54.4054)
Luminance	0.1260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405BC5 #C5AA40

analogous

#409DC5 #405BC5 #6740C5

triadic

#405BC5 #C5405B #5BC540

tetradic

#405BC5 #C5409D #C5AA40 #40C567

square

#405BC5 #C5409D #C5AA40 #40C567

split-complementary

#405BC5 #C56740 #9DC540

monochromatic

#202F6A #2F4499 #405BC5 #6F83D3 #9EACE2

Accessibility & contrast

On white

5.96

#405BC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#405BC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405BC5

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405BC5	#FFFFFF	#000000	##FFFFFF
##405BC5	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C6AC9

Deuteranopia (green-blind)

#005EC3

Tritanopia (blue-blind)

#007487

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #405bc5;
/* rgb */ color: rgb(64, 91, 197);
/* oklch */ color: oklch(51.1% 0.168 268.9);

Tailwind

colors: {
  custom: {
    50: '#8489d7',
    500: '#405bc5',
    950: '#000000',
  },
}

SCSS

$custom: #405bc5;
$custom-light: #8489d7;
$custom-dark: #000000;

JSON

{
  "hex": "#405bc5",
  "rgb": {
    "r": 64,
    "g": 91,
    "b": 197
  },
  "hsl": {
    "h": 227.82,
    "s": 53.414,
    "l": 51.176
  },
  "oklch": {
    "l": 0.5107,
    "c": 0.16802,
    "h": 268.9
  },
  "luminance": 0.12603
}

Semantic roles & 50–950 ramp

primary

#405BC5

secondary

#CEC293

accent

#BF4BDD

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #405BC5

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

Preview Lab → · Contrast checker → · Palette generator →