#404A8A#404A8A

#404A8A is a dark, moderate blue. Relative luminance 0.078; OKLCH L 43.3% C 0.106 H 274.5°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#404A8A
RGB	rgb(64, 74, 138)
HSL	hsl(232, 37%, 40%)
HSV	hsv(232, 54%, 54%)
CMYK	cmyk(53.6%, 46.4%, 0%, 45.9%)
CIE-LAB	lab(33.61, 15.32, -37.05)
CIE-LCH	lch(33.61, 40.09, 292.46°)
OKLab	oklab(43.34% 0.0082 -0.1053)
OKLCH	oklch(43.34% 0.106 274.5)
XYZ	xyz(9.1491, 7.8219, 25.0675)
Luminance	0.0782 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404A8A #8A8040

analogous

#406F8A #404A8A #5B408A

triadic

#404A8A #8A404A #4A8A40

tetradic

#404A8A #8A406F #8A8040 #408A5B

square

#404A8A #8A406F #8A8040 #408A5B

split-complementary

#404A8A #8A5B40 #6F8A40

monochromatic

#191D36 #2D3460 #404A8A #5663B1 #8089C4

Accessibility & contrast

On white

8.19

#404A8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#404A8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404A8A

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404A8A	#FFFFFF	#000000	##FFFFFF
##404A8A	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E528C

Deuteranopia (green-blind)

#264C89

Tritanopia (blue-blind)

#1F5863

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #404a8a;
/* rgb */ color: rgb(64, 74, 138);
/* oklch */ color: oklch(43.3% 0.106 274.5);

Tailwind

colors: {
  custom: {
    50: '#7a7cac',
    500: '#404a8a',
    950: '#000000',
  },
}

SCSS

$custom: #404a8a;
$custom-light: #7a7cac;
$custom-dark: #000000;

JSON

{
  "hex": "#404a8a",
  "rgb": {
    "r": 64,
    "g": 74,
    "b": 138
  },
  "hsl": {
    "h": 231.892,
    "s": 36.634,
    "l": 39.608
  },
  "oklch": {
    "l": 0.43343,
    "c": 0.10563,
    "h": 274.5
  },
  "luminance": 0.07823
}

Semantic roles & 50–950 ramp

primary

#404A8A

secondary

#AFA777

accent

#BD5BCD

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #404A8A

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

Preview Lab → · Contrast checker → · Palette generator →