#405C8B#405C8B

#405C8B is a mid, moderate blue. Relative luminance 0.106; OKLCH L 47.4% C 0.084 H 260.3°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#405C8B
RGB	rgb(64, 92, 139)
HSL	hsl(218, 37%, 40%)
HSV	hsv(218, 54%, 55%)
CMYK	cmyk(54%, 33.8%, 0%, 45.5%)
CIE-LAB	lab(38.91, 3.99, -29.26)
CIE-LCH	lch(38.91, 29.53, 277.76°)
OKLab	oklab(47.45% -0.014 -0.0824)
OKLCH	oklch(47.45% 0.084 260.3)
XYZ	xyz(10.6001, 10.6076, 25.9100)
Luminance	0.1061 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405C8B #8B6F40

analogous

#40828B #405C8B #4A408B

triadic

#405C8B #8B405C #5C8B40

tetradic

#405C8B #8B4082 #8B6F40 #408B4A

square

#405C8B #8B4082 #8B6F40 #408B4A

split-complementary

#405C8B #8B4A40 #828B40

monochromatic

#192537 #2D4061 #405C8B #5779B2 #819AC5

Accessibility & contrast

On white

6.73

#405C8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#405C8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405C8B

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405C8B	#FFFFFF	#000000	##FFFFFF
##405C8B	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5F8D

Deuteranopia (green-blind)

#41588A

Tritanopia (blue-blind)

#19666D

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #405c8b;
/* rgb */ color: rgb(64, 92, 139);
/* oklch */ color: oklch(47.4% 0.084 260.3);

Tailwind

colors: {
  custom: {
    50: '#7a89ad',
    500: '#405c8b',
    950: '#000000',
  },
}

SCSS

$custom: #405c8b;
$custom-light: #7a89ad;
$custom-dark: #000000;

JSON

{
  "hex": "#405c8b",
  "rgb": {
    "r": 64,
    "g": 92,
    "b": 139
  },
  "hsl": {
    "h": 217.6,
    "s": 36.946,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47448,
    "c": 0.08361,
    "h": 260.3
  },
  "luminance": 0.10608
}

Semantic roles & 50–950 ramp

primary

#405C8B

secondary

#AF9A78

accent

#A25BCD

background

#F7F8FA

surface

#EEF0F4

border

#C9CBCE

text

#090B10

muted

#7B7C7F

Preview Lab

Preview with #405C8B

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

Preview Lab → · Contrast checker → · Palette generator →