#405CB4#405CB4

#405CB4 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.0% C 0.143 H 267.7°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#405CB4
RGB	rgb(64, 92, 180)
HSL	hsl(226, 48%, 48%)
HSV	hsv(226, 64%, 71%)
CMYK	cmyk(64.4%, 48.9%, 0%, 29.4%)
CIE-LAB	lab(41.28, 18.28, -49.94)
CIE-LCH	lch(41.28, 53.18, 290.11°)
OKLab	oklab(50.04% -0.0057 -0.143)
OKLCH	oklch(50.04% 0.143 267.7)
XYZ	xyz(14.1769, 12.0383, 44.7477)
Luminance	0.1204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405CB4 #B49840

analogous

#4096B4 #405CB4 #5E40B4

triadic

#405CB4 #B4405C #5CB440

tetradic

#405CB4 #B44096 #B49840 #40B45E

square

#405CB4 #B44096 #B49840 #40B45E

split-complementary

#405CB4 #B45E40 #96B440

monochromatic

#202E5A #304587 #405CB4 #687FC9 #95A6D9

Accessibility & contrast

On white

6.16

#405CB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#405CB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405CB4

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405CB4	#FFFFFF	#000000	##FFFFFF
##405CB4	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)

#2E67B7

Deuteranopia (green-blind)

#145CB2

Tritanopia (blue-blind)

#00707F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #405cb4;
/* rgb */ color: rgb(64, 92, 180);
/* oklch */ color: oklch(50.0% 0.143 267.7);

Tailwind

colors: {
  custom: {
    50: '#8189cb',
    500: '#405cb4',
    950: '#000000',
  },
}

SCSS

$custom: #405cb4;
$custom-light: #8189cb;
$custom-dark: #000000;

JSON

{
  "hex": "#405cb4",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 180
  },
  "hsl": {
    "h": 225.517,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.50037,
    "c": 0.14311,
    "h": 267.7
  },
  "luminance": 0.1204
}

Semantic roles & 50–950 ramp

primary

#405CB4

secondary

#C5B78B

accent

#B751D7

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #405CB4

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

Preview Lab → · Contrast checker → · Palette generator →