#404C99#404C99

#404C99 is a dark, vivid blue. Relative luminance 0.086; OKLCH L 44.8% C 0.125 H 273.6°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#404C99
RGB	rgb(64, 76, 153)
HSL	hsl(232, 41%, 43%)
HSV	hsv(232, 58%, 60%)
CMYK	cmyk(58.2%, 50.3%, 0%, 40%)
CIE-LAB	lab(35.12, 19.17, -43.76)
CIE-LCH	lch(35.12, 47.78, 293.65°)
OKLab	oklab(44.8% 0.0079 -0.125)
OKLCH	oklch(44.8% 0.125 273.6)
XYZ	xyz(10.4467, 8.5580, 31.2322)
Luminance	0.0856 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404C99 #998D40

analogous

#407999 #404C99 #604099

triadic

#404C99 #99404C #4C9940

tetradic

#404C99 #994079 #998D40 #409960

square

#404C99 #994079 #998D40 #409960

split-complementary

#404C99 #996040 #799940

monochromatic

#1C2143 #2E376E #404C99 #5C68BB #8790CD

Accessibility & contrast

On white

7.74

#404C99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#404C99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404C99

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404C99	#FFFFFF	#000000	##FFFFFF
##404C99	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25579C

Deuteranopia (green-blind)

#174F97

Tritanopia (blue-blind)

#065D6B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #404c99;
/* rgb */ color: rgb(64, 76, 153);
/* oklch */ color: oklch(44.8% 0.125 273.6);

Tailwind

colors: {
  custom: {
    50: '#7d7db7',
    500: '#404c99',
    950: '#000000',
  },
}

SCSS

$custom: #404c99;
$custom-light: #7d7db7;
$custom-dark: #000000;

JSON

{
  "hex": "#404c99",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 153
  },
  "hsl": {
    "h": 231.91,
    "s": 41.014,
    "l": 42.549
  },
  "oklch": {
    "l": 0.44797,
    "c": 0.12527,
    "h": 273.6
  },
  "luminance": 0.08559
}

Semantic roles & 50–950 ramp

primary

#404C99

secondary

#B7AF7E

accent

#C057D1

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #404C99

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

Preview Lab → · Contrast checker → · Palette generator →