#404BC3#404BC3

#404BC3 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.9% C 0.185 H 273.1°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#404BC3
RGB	rgb(64, 75, 195)
HSL	hsl(235, 52%, 51%)
HSV	hsv(235, 67%, 76%)
CMYK	cmyk(67.2%, 61.5%, 0%, 23.5%)
CIE-LAB	lab(37.95, 34.48, -64.11)
CIE-LCH	lch(37.95, 72.79, 298.27°)
OKLab	oklab(47.89% 0.0102 -0.1848)
OKLCH	oklch(47.89% 0.185 273.1)
XYZ	xyz(14.4775, 10.0609, 52.7982)
Luminance	0.1006 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404BC3 #C3B840

analogous

#408CC3 #404BC3 #7640C3

triadic

#404BC3 #C3404B #4BC340

tetradic

#404BC3 #C3408C #C3B840 #40C376

square

#404BC3 #C3408C #C3B840 #40C376

split-complementary

#404BC3 #C37640 #8CC340

monochromatic

#212768 #2F3897 #404BC3 #6F77D2 #9DA3E0

Accessibility & contrast

On white

6.97

#404BC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#404BC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404BC3

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404BC3	#FFFFFF	#000000	##FFFFFF
##404BC3	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FC7

Deuteranopia (green-blind)

#0053C1

Tritanopia (blue-blind)

#006980

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #404bc3;
/* rgb */ color: rgb(64, 75, 195);
/* oklch */ color: oklch(47.9% 0.185 273.1);

Tailwind

colors: {
  custom: {
    50: '#857dd6',
    500: '#404bc3',
    950: '#000000',
  },
}

SCSS

$custom: #404bc3;
$custom-light: #857dd6;
$custom-dark: #000000;

JSON

{
  "hex": "#404bc3",
  "rgb": {
    "r": 64,
    "g": 75,
    "b": 195
  },
  "hsl": {
    "h": 234.962,
    "s": 52.191,
    "l": 50.784
  },
  "oklch": {
    "l": 0.47888,
    "c": 0.18513,
    "h": 273.1
  },
  "luminance": 0.10062
}

Semantic roles & 50–950 ramp

primary

#404BC3

secondary

#CCC892

accent

#D04CDC

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #404BC3

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

Preview Lab → · Contrast checker → · Palette generator →