#405CB6#405CB6

#405CB6 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.2% C 0.146 H 267.9°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#405CB6
RGB	rgb(64, 92, 182)
HSL	hsl(226, 48%, 48%)
HSV	hsv(226, 65%, 71%)
CMYK	cmyk(64.8%, 49.5%, 0%, 28.6%)
CIE-LAB	lab(41.41, 19.00, -50.91)
CIE-LCH	lch(41.41, 54.34, 290.46°)
OKLab	oklab(50.18% -0.0054 -0.1458)
OKLCH	oklch(50.18% 0.146 267.9)
XYZ	xyz(14.3821, 12.1204, 45.8284)
Luminance	0.1212 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CB6 #B69A40

analogous

#4097B6 #405CB6 #5F40B6

triadic

#405CB6 #B6405C #5CB640

tetradic

#405CB6 #B64097 #B69A40 #40B65F

square

#405CB6 #B64097 #B69A40 #40B65F

split-complementary

#405CB6 #B65F40 #97B640

monochromatic

#202E5B #304589 #405CB6 #6980CA #96A6DA

Accessibility & contrast

On white

6.13

#405CB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#405CB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CB6

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CB6	#FFFFFF	#000000	##FFFFFF
##405CB6	1.00	6.13	3.42	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B67B9

Deuteranopia (green-blind)

#0E5DB4

Tritanopia (blue-blind)

#007180

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #405cb6;
/* rgb */ color: rgb(64, 92, 182);
/* oklch */ color: oklch(50.2% 0.146 267.9);

Tailwind

colors: {
  custom: {
    50: '#8189cc',
    500: '#405cb6',
    950: '#000000',
  },
}

SCSS

$custom: #405cb6;
$custom-light: #8189cc;
$custom-dark: #000000;

JSON

{
  "hex": "#405cb6",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 182
  },
  "hsl": {
    "h": 225.763,
    "s": 47.967,
    "l": 48.235
  },
  "oklch": {
    "l": 0.50178,
    "c": 0.14593,
    "h": 267.9
  },
  "luminance": 0.12122
}

Semantic roles & 50–950 ramp

primary

#405CB6

secondary

#C6B88C

accent

#B750D8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405CB6

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

Preview Lab → · Contrast checker → · Palette generator →