#404ACC#404ACC

#404ACC is a mid, vivid blue. Relative luminance 0.103; OKLCH L 48.5% C 0.198 H 273.0°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#404ACC
RGB	rgb(64, 74, 204)
HSL	hsl(236, 58%, 53%)
HSV	hsv(236, 69%, 80%)
CMYK	cmyk(68.6%, 63.7%, 0%, 20%)
CIE-LAB	lab(38.46, 38.20, -68.51)
CIE-LCH	lch(38.46, 78.44, 299.14°)
OKLab	oklab(48.49% 0.0105 -0.1978)
OKLCH	oklch(48.49% 0.198 273)
XYZ	xyz(15.4586, 10.3457, 58.2973)
Luminance	0.1035 (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

#404ACC #CCC240

analogous

#4090CC #404ACC #7C40CC

triadic

#404ACC #CC404A #4ACC40

tetradic

#404ACC #CC4090 #CCC240 #40CC7C

square

#404ACC #CC4090 #CCC240 #40CC7C

split-complementary

#404ACC #CC7C40 #90CC40

monochromatic

#1F2573 #2C34A3 #404ACC #7078D9 #A1A6E6

Accessibility & contrast

On white

6.84

#404ACC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#404ACC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404ACC

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404ACC	#FFFFFF	#000000	##FFFFFF
##404ACC	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061D0

Deuteranopia (green-blind)

#0054CA

Tritanopia (blue-blind)

#006C84

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #404acc;
/* rgb */ color: rgb(64, 74, 204);
/* oklch */ color: oklch(48.5% 0.198 273.0);

Tailwind

colors: {
  custom: {
    50: '#867cdd',
    500: '#404acc',
    950: '#000000',
  },
}

SCSS

$custom: #404acc;
$custom-light: #867cdd;
$custom-dark: #000000;

JSON

{
  "hex": "#404acc",
  "rgb": {
    "r": 64,
    "g": 74,
    "b": 204
  },
  "hsl": {
    "h": 235.714,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.48489,
    "c": 0.19807,
    "h": 273
  },
  "luminance": 0.10347
}

Semantic roles & 50–950 ramp

primary

#404ACC

secondary

#D2CE95

accent

#D647E1

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #404ACC

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

Preview Lab → · Contrast checker → · Palette generator →