#404DCC#404DCC

#404DCC is a mid, vivid blue. Relative luminance 0.108; OKLCH L 49.0% C 0.195 H 272.4°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#404DCC
RGB	rgb(64, 77, 204)
HSL	hsl(234, 58%, 53%)
HSV	hsv(234, 69%, 80%)
CMYK	cmyk(68.6%, 62.3%, 0%, 20%)
CIE-LAB	lab(39.17, 36.34, -67.35)
CIE-LCH	lch(39.17, 76.53, 298.35°)
OKLab	oklab(49.01% 0.0083 -0.1944)
OKLCH	oklch(49.01% 0.195 272.4)
XYZ	xyz(15.6637, 10.7559, 58.3656)
Luminance	0.1076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.71

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404DCC #CCBF40

analogous

#4093CC #404DCC #7940CC

triadic

#404DCC #CC404D #4DCC40

tetradic

#404DCC #CC4093 #CCBF40 #40CC79

square

#404DCC #CC4093 #CCBF40 #40CC79

split-complementary

#404DCC #CC7940 #93CC40

monochromatic

#1F2773 #2C37A3 #404DCC #707AD9 #A1A7E6

Accessibility & contrast

On white

6.66

#404DCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#404DCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404DCC

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404DCC	#FFFFFF	#000000	##FFFFFF
##404DCC	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063D0

Deuteranopia (green-blind)

#0056CA

Tritanopia (blue-blind)

#006D85

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #404dcc;
/* rgb */ color: rgb(64, 77, 204);
/* oklch */ color: oklch(49.0% 0.195 272.4);

Tailwind

colors: {
  custom: {
    50: '#867fdd',
    500: '#404dcc',
    950: '#000000',
  },
}

SCSS

$custom: #404dcc;
$custom-light: #867fdd;
$custom-dark: #000000;

JSON

{
  "hex": "#404dcc",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 204
  },
  "hsl": {
    "h": 234.429,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.4901,
    "c": 0.19454,
    "h": 272.4
  },
  "luminance": 0.10757
}

Semantic roles & 50–950 ramp

primary

#404DCC

secondary

#D2CD95

accent

#D347E1

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0A15

muted

#7D7C83

Preview Lab

Preview with #404DCC

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

Preview Lab → · Contrast checker → · Palette generator →