#405ED3#405ED3

#405ED3 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.7% C 0.183 H 268.5°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#405ED3
RGB	rgb(64, 94, 211)
HSL	hsl(228, 63%, 54%)
HSV	hsv(228, 70%, 83%)
CMYK	cmyk(69.7%, 55.5%, 0%, 17.3%)
CIE-LAB	lab(43.94, 28.08, -63.61)
CIE-LCH	lch(43.94, 69.53, 293.82°)
OKLab	oklab(52.73% -0.0048 -0.1832)
OKLCH	oklch(52.73% 0.183 268.5)
XYZ	xyz(17.8709, 13.7968, 63.3366)
Luminance	0.1380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405ED3 #D3B540

analogous

#40A8D3 #405ED3 #6C40D3

triadic

#405ED3 #D3405E #5ED340

tetradic

#405ED3 #D340A8 #D3B540 #40D36C

square

#405ED3 #D340A8 #D3B540 #40D36C

split-complementary

#405ED3 #D36C40 #A8D340

monochromatic

#1D307C #2843AE #405ED3 #7288DE #A3B2EA

Accessibility & contrast

On white

5.59

#405ED3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#405ED3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405ED3

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405ED3	#FFFFFF	#000000	##FFFFFF
##405ED3	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FD7

Deuteranopia (green-blind)

#0061D1

Tritanopia (blue-blind)

#007A8F

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #405ed3;
/* rgb */ color: rgb(64, 94, 211);
/* oklch */ color: oklch(52.7% 0.183 268.5);

Tailwind

colors: {
  custom: {
    50: '#868be1',
    500: '#405ed3',
    950: '#000000',
  },
}

SCSS

$custom: #405ed3;
$custom-light: #868be1;
$custom-dark: #000000;

JSON

{
  "hex": "#405ed3",
  "rgb": {
    "r": 64,
    "g": 94,
    "b": 211
  },
  "hsl": {
    "h": 227.755,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.52728,
    "c": 0.18323,
    "h": 268.5
  },
  "luminance": 0.13799
}

Semantic roles & 50–950 ramp

primary

#405ED3

secondary

#D7CA98

accent

#C442E6

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0D0B15

muted

#7D7C83

Preview Lab

Preview with #405ED3

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

Preview Lab → · Contrast checker → · Palette generator →