#404D8A#404D8A

#404D8A is a dark, moderate blue. Relative luminance 0.082; OKLCH L 44.0% C 0.101 H 272.5°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#404D8A
RGB	rgb(64, 77, 138)
HSL	hsl(229, 37%, 40%)
HSV	hsv(229, 54%, 54%)
CMYK	cmyk(53.6%, 44.2%, 0%, 45.9%)
CIE-LAB	lab(34.46, 13.34, -35.69)
CIE-LCH	lch(34.46, 38.10, 290.50°)
OKLab	oklab(43.99% 0.0045 -0.1013)
OKLCH	oklch(43.99% 0.101 272.5)
XYZ	xyz(9.3542, 8.2321, 25.1359)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404D8A #8A7D40

analogous

#40728A #404D8A #58408A

triadic

#404D8A #8A404D #4D8A40

tetradic

#404D8A #8A4072 #8A7D40 #408A58

square

#404D8A #8A4072 #8A7D40 #408A58

split-complementary

#404D8A #8A5840 #728A40

monochromatic

#191E36 #2D3660 #404D8A #5666B1 #808CC4

Accessibility & contrast

On white

7.93

#404D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#404D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404D8A

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404D8A	#FFFFFF	#000000	##FFFFFF
##404D8A	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#34548C

Deuteranopia (green-blind)

#2C4E89

Tritanopia (blue-blind)

#1E5A65

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #404d8a;
/* rgb */ color: rgb(64, 77, 138);
/* oklch */ color: oklch(44.0% 0.101 272.5);

Tailwind

colors: {
  custom: {
    50: '#7a7eac',
    500: '#404d8a',
    950: '#000000',
  },
}

SCSS

$custom: #404d8a;
$custom-light: #7a7eac;
$custom-dark: #000000;

JSON

{
  "hex": "#404d8a",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 138
  },
  "hsl": {
    "h": 229.459,
    "s": 36.634,
    "l": 39.608
  },
  "oklch": {
    "l": 0.43994,
    "c": 0.1014,
    "h": 272.5
  },
  "luminance": 0.08233
}

Semantic roles & 50–950 ramp

primary

#404D8A

secondary

#AFA577

accent

#B95BCD

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #404D8A

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

Preview Lab → · Contrast checker → · Palette generator →