#405DD4#405DD4

#405DD4 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.6% C 0.186 H 268.8°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#405DD4
RGB	rgb(64, 93, 212)
HSL	hsl(228, 63%, 54%)
HSV	hsv(228, 70%, 83%)
CMYK	cmyk(69.8%, 56.1%, 0%, 16.9%)
CIE-LAB	lab(43.76, 29.07, -64.48)
CIE-LCH	lch(43.76, 70.73, 294.27°)
OKLab	oklab(52.61% -0.004 -0.1857)
OKLCH	oklch(52.61% 0.186 268.8)
XYZ	xyz(17.9083, 13.6704, 63.9694)
Luminance	0.1367 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405DD4 #D4B740

analogous

#40A7D4 #405DD4 #6D40D4

triadic

#405DD4 #D4405D #5DD440

tetradic

#405DD4 #D440A7 #D4B740 #40D46D

square

#405DD4 #D440A7 #D4B740 #40D46D

split-complementary

#405DD4 #D46D40 #A7D440

monochromatic

#1C2F7D #2742AF #405DD4 #7287DF #A4B2EA

Accessibility & contrast

On white

5.62

#405DD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#405DD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405DD4

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405DD4	#FFFFFF	#000000	##FFFFFF
##405DD4	1.00	5.62	3.73	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED8

Deuteranopia (green-blind)

#0061D2

Tritanopia (blue-blind)

#007A8F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #405dd4;
/* rgb */ color: rgb(64, 93, 212);
/* oklch */ color: oklch(52.6% 0.186 268.8);

Tailwind

colors: {
  custom: {
    50: '#878ae2',
    500: '#405dd4',
    950: '#000000',
  },
}

SCSS

$custom: #405dd4;
$custom-light: #878ae2;
$custom-dark: #000000;

JSON

{
  "hex": "#405dd4",
  "rgb": {
    "r": 64,
    "g": 93,
    "b": 212
  },
  "hsl": {
    "h": 228.243,
    "s": 63.248,
    "l": 54.118
  },
  "oklch": {
    "l": 0.52614,
    "c": 0.18579,
    "h": 268.8
  },
  "luminance": 0.13672
}

Semantic roles & 50–950 ramp

primary

#405DD4

secondary

#D7CB98

accent

#C642E6

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0B15

muted

#7E7C84

Preview Lab

Preview with #405DD4

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

Preview Lab → · Contrast checker → · Palette generator →