#404DC3#404DC3

#404DC3 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 48.2% C 0.183 H 272.7°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#404DC3
RGB	rgb(64, 77, 195)
HSL	hsl(234, 52%, 51%)
HSV	hsv(234, 67%, 76%)
CMYK	cmyk(67.2%, 60.5%, 0%, 23.5%)
CIE-LAB	lab(38.44, 33.22, -63.31)
CIE-LCH	lch(38.44, 71.50, 297.68°)
OKLab	oklab(48.25% 0.0086 -0.1825)
OKLCH	oklch(48.25% 0.183 272.7)
XYZ	xyz(14.6153, 10.3365, 52.8441)
Luminance	0.1034 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404DC3 #C3B640

analogous

#408EC3 #404DC3 #7440C3

triadic

#404DC3 #C3404D #4DC340

tetradic

#404DC3 #C3408E #C3B640 #40C374

square

#404DC3 #C3408E #C3B640 #40C374

split-complementary

#404DC3 #C37440 #8EC340

monochromatic

#212868 #2F3A97 #404DC3 #6F78D2 #9DA4E0

Accessibility & contrast

On white

6.85

#404DC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#404DC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404DC3

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404DC3	#FFFFFF	#000000	##FFFFFF
##404DC3	1.00	6.85	3.07	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C7

Deuteranopia (green-blind)

#0055C1

Tritanopia (blue-blind)

#006B80

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #404dc3;
/* rgb */ color: rgb(64, 77, 195);
/* oklch */ color: oklch(48.2% 0.183 272.7);

Tailwind

colors: {
  custom: {
    50: '#847ed6',
    500: '#404dc3',
    950: '#000000',
  },
}

SCSS

$custom: #404dc3;
$custom-light: #847ed6;
$custom-dark: #000000;

JSON

{
  "hex": "#404dc3",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 195
  },
  "hsl": {
    "h": 234.046,
    "s": 52.191,
    "l": 50.784
  },
  "oklch": {
    "l": 0.48248,
    "c": 0.1827,
    "h": 272.7
  },
  "luminance": 0.10338
}

Semantic roles & 50–950 ramp

primary

#404DC3

secondary

#CCC792

accent

#CD4CDC

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #404DC3

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

Preview Lab → · Contrast checker → · Palette generator →