#404B99#404B99

#404B99 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.6% C 0.127 H 274.1°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#404B99
RGB	rgb(64, 75, 153)
HSL	hsl(233, 41%, 43%)
HSV	hsv(233, 58%, 60%)
CMYK	cmyk(58.2%, 51%, 0%, 40%)
CIE-LAB	lab(34.85, 19.82, -44.20)
CIE-LCH	lch(34.85, 48.44, 294.15°)
OKLab	oklab(44.59% 0.009 -0.1263)
OKLCH	oklch(44.59% 0.127 274.1)
XYZ	xyz(10.3783, 8.4213, 31.2094)
Luminance	0.0842 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404B99 #998E40

analogous

#407899 #404B99 #614099

triadic

#404B99 #99404B #4B9940

tetradic

#404B99 #994078 #998E40 #409961

square

#404B99 #994078 #998E40 #409961

split-complementary

#404B99 #996140 #789940

monochromatic

#1C2143 #2E366E #404B99 #5C67BB #878FCD

Accessibility & contrast

On white

7.82

#404B99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#404B99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404B99

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404B99	#FFFFFF	#000000	##FFFFFF
##404B99	1.00	7.82	2.68	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23569C

Deuteranopia (green-blind)

#144E97

Tritanopia (blue-blind)

#075D6B

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #404b99;
/* rgb */ color: rgb(64, 75, 153);
/* oklch */ color: oklch(44.6% 0.127 274.1);

Tailwind

colors: {
  custom: {
    50: '#7d7db7',
    500: '#404b99',
    950: '#000000',
  },
}

SCSS

$custom: #404b99;
$custom-light: #7d7db7;
$custom-dark: #000000;

JSON

{
  "hex": "#404b99",
  "rgb": {
    "r": 64,
    "g": 75,
    "b": 153
  },
  "hsl": {
    "h": 232.584,
    "s": 41.014,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4459,
    "c": 0.12665,
    "h": 274.1
  },
  "luminance": 0.08422
}

Semantic roles & 50–950 ramp

primary

#404B99

secondary

#B7B07E

accent

#C257D1

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #404B99

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

Preview Lab → · Contrast checker → · Palette generator →