#405BB8#405BB8

#405BB8 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.1% C 0.150 H 268.4°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#405BB8
RGB	rgb(64, 91, 184)
HSL	hsl(227, 48%, 49%)
HSV	hsv(227, 65%, 72%)
CMYK	cmyk(65.2%, 50.5%, 0%, 27.8%)
CIE-LAB	lab(41.27, 20.35, -52.30)
CIE-LCH	lch(41.27, 56.13, 291.26°)
OKLab	oklab(50.11% -0.0042 -0.15)
OKLCH	oklch(50.11% 0.15 268.4)
XYZ	xyz(14.5042, 12.0315, 46.8961)
Luminance	0.1203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405BB8 #B89D40

analogous

#4097B8 #405BB8 #6140B8

triadic

#405BB8 #B8405B #5BB840

tetradic

#405BB8 #B84097 #B89D40 #40B861

square

#405BB8 #B84097 #B89D40 #40B861

split-complementary

#405BB8 #B86140 #97B840

monochromatic

#202E5D #30458B #405BB8 #6A80CB #97A7DB

Accessibility & contrast

On white

6.16

#405BB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#405BB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405BB8

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405BB8	#FFFFFF	#000000	##FFFFFF
##405BB8	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2667BB

Deuteranopia (green-blind)

#005CB6

Tritanopia (blue-blind)

#007181

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #405bb8;
/* rgb */ color: rgb(64, 91, 184);
/* oklch */ color: oklch(50.1% 0.150 268.4);

Tailwind

colors: {
  custom: {
    50: '#8189ce',
    500: '#405bb8',
    950: '#000000',
  },
}

SCSS

$custom: #405bb8;
$custom-light: #8189ce;
$custom-dark: #000000;

JSON

{
  "hex": "#405bb8",
  "rgb": {
    "r": 64,
    "g": 91,
    "b": 184
  },
  "hsl": {
    "h": 226.5,
    "s": 48.387,
    "l": 48.627
  },
  "oklch": {
    "l": 0.50113,
    "c": 0.15002,
    "h": 268.4
  },
  "luminance": 0.12033
}

Semantic roles & 50–950 ramp

primary

#405BB8

secondary

#C7BA8D

accent

#B950D8

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #405BB8

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

Preview Lab → · Contrast checker → · Palette generator →