#405EFF#405EFF

#405EFF is a mid, highly saturated blue. Relative luminance 0.163; OKLCH L 56.4% C 0.240 H 268.8°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#405EFF
RGB	rgb(64, 94, 255)
HSL	hsl(231, 100%, 63%)
HSV	hsv(231, 75%, 100%)
CMYK	cmyk(74.9%, 63.1%, 0%, 0%)
CIE-LAB	lab(47.38, 43.53, -82.81)
CIE-LCH	lch(47.38, 93.55, 297.73°)
OKLab	oklab(56.36% -0.0048 -0.2395)
OKLCH	oklch(56.36% 0.24 268.8)
XYZ	xyz(24.1608, 16.3127, 96.4637)
Luminance	0.1631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405EFF #FFE140

analogous

#40BDFF #405EFF #8240FF

triadic

#405EFF #FF405E #5EFF40

tetradic

#405EFF #FF40BD #FFE140 #40FF82

square

#405EFF #FF40BD #FFE140 #40FF82

split-complementary

#405EFF #FF8240 #BDFF40

monochromatic

#001FC5 #032AFF #405EFF #7D92FF #BAC5FF

Accessibility & contrast

On white

4.93

#405EFF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#405EFF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405EFF

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405EFF	#FFFFFF	#000000	##FFFFFF
##405EFF	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AFF

Deuteranopia (green-blind)

#0068FC

Tritanopia (blue-blind)

#0088A6

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #405eff;
/* rgb */ color: rgb(64, 94, 255);
/* oklch */ color: oklch(56.4% 0.240 268.8);

Tailwind

colors: {
  custom: {
    50: '#908bff',
    500: '#405eff',
    950: '#000000',
  },
}

SCSS

$custom: #405eff;
$custom-light: #908bff;
$custom-dark: #000000;

JSON

{
  "hex": "#405eff",
  "rgb": {
    "r": 64,
    "g": 94,
    "b": 255
  },
  "hsl": {
    "h": 230.576,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.56355,
    "c": 0.23957,
    "h": 268.8
  },
  "luminance": 0.16315
}

Semantic roles & 50–950 ramp

primary

#405EFF

secondary

#F0E5AB

accent

#C100E6

background

#F9F8FF

surface

#F2F0FF

border

#CCCBD7

text

#0F0C18

muted

#7E7D86

Preview Lab

Preview with #405EFF

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

Preview Lab → · Contrast checker → · Palette generator →