#405D8D#405D8D

#405D8D is a mid, moderate blue. Relative luminance 0.108; OKLCH L 47.8% C 0.085 H 260.1°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#405D8D
RGB	rgb(64, 93, 141)
HSL	hsl(217, 38%, 40%)
HSV	hsv(217, 55%, 55%)
CMYK	cmyk(54.6%, 34%, 0%, 44.7%)
CIE-LAB	lab(39.31, 4.03, -29.84)
CIE-LCH	lch(39.31, 30.11, 277.68°)
OKLab	oklab(47.79% -0.0147 -0.0841)
OKLCH	oklch(47.79% 0.085 260.1)
XYZ	xyz(10.8348, 10.8410, 26.7157)
Luminance	0.1084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405D8D #8D7040

analogous

#40838D #405D8D #4A408D

triadic

#405D8D #8D405D #5D8D40

tetradic

#405D8D #8D4083 #8D7040 #408D4A

square

#405D8D #8D4083 #8D7040 #408D4A

split-complementary

#405D8D #8D4A40 #838D40

monochromatic

#1A2539 #2D4163 #405D8D #577AB3 #819BC6

Accessibility & contrast

On white

6.63

#405D8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#405D8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405D8D

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405D8D	#FFFFFF	#000000	##FFFFFF
##405D8D	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A618F

Deuteranopia (green-blind)

#41598C

Tritanopia (blue-blind)

#17686E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #405d8d;
/* rgb */ color: rgb(64, 93, 141);
/* oklch */ color: oklch(47.8% 0.085 260.1);

Tailwind

colors: {
  custom: {
    50: '#7a8aae',
    500: '#405d8d',
    950: '#000000',
  },
}

SCSS

$custom: #405d8d;
$custom-light: #7a8aae;
$custom-dark: #000000;

JSON

{
  "hex": "#405d8d",
  "rgb": {
    "r": 64,
    "g": 93,
    "b": 141
  },
  "hsl": {
    "h": 217.403,
    "s": 37.561,
    "l": 40.196
  },
  "oklch": {
    "l": 0.47793,
    "c": 0.08539,
    "h": 260.1
  },
  "luminance": 0.10842
}

Semantic roles & 50–950 ramp

primary

#405D8D

secondary

#B09B78

accent

#A25ACE

background

#F7F8FA

surface

#EEF0F4

border

#C9CBCE

text

#0A0B10

muted

#7C7C7F

Preview Lab

Preview with #405D8D

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

Preview Lab → · Contrast checker → · Palette generator →