#404E83#404E83

#404E83 is a dark, moderate blue. Relative luminance 0.082; OKLCH L 43.8% C 0.089 H 271.1°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#404E83
RGB	rgb(64, 78, 131)
HSL	hsl(227, 34%, 38%)
HSV	hsv(227, 51%, 51%)
CMYK	cmyk(51.1%, 40.5%, 0%, 48.6%)
CIE-LAB	lab(34.35, 10.32, -31.57)
CIE-LCH	lch(34.35, 33.21, 288.10°)
OKLab	oklab(43.78% 0.0018 -0.0892)
OKLCH	oklch(43.78% 0.089 271.1)
XYZ	xyz(8.9342, 8.1769, 22.5759)
Luminance	0.0818 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404E83 #837540

analogous

#406F83 #404E83 #534083

triadic

#404E83 #83404E #4E8340

tetradic

#404E83 #83406F #837540 #408353

square

#404E83 #83406F #837540 #408353

split-complementary

#404E83 #835340 #6F8340

monochromatic

#181D31 #2C365A #404E83 #5467AC #7E8BC0

Accessibility & contrast

On white

7.97

#404E83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#404E83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404E83

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404E83	#FFFFFF	#000000	##FFFFFF
##404E83	1.00	7.97	2.64	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395485

Deuteranopia (green-blind)

#334E82

Tritanopia (blue-blind)

#245962

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #404e83;
/* rgb */ color: rgb(64, 78, 131);
/* oklch */ color: oklch(43.8% 0.089 271.1);

Tailwind

colors: {
  custom: {
    50: '#797fa7',
    500: '#404e83',
    950: '#000000',
  },
}

SCSS

$custom: #404e83;
$custom-light: #797fa7;
$custom-dark: #000000;

JSON

{
  "hex": "#404e83",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 131
  },
  "hsl": {
    "h": 227.463,
    "s": 34.359,
    "l": 38.235
  },
  "oklch": {
    "l": 0.43776,
    "c": 0.08925,
    "h": 271.1
  },
  "luminance": 0.08177
}

Semantic roles & 50–950 ramp

primary

#404E83

secondary

#AA9F75

accent

#B45DCA

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#090A0F

muted

#7B7C7F

Preview Lab

Preview with #404E83

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

Preview Lab → · Contrast checker → · Palette generator →