#404FCC#404FCC

#404FCC is a mid, vivid blue. Relative luminance 0.110; OKLCH L 49.4% C 0.192 H 272.0°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#404FCC
RGB	rgb(64, 79, 204)
HSL	hsl(234, 58%, 53%)
HSV	hsv(234, 69%, 80%)
CMYK	cmyk(68.6%, 61.3%, 0%, 20%)
CIE-LAB	lab(39.65, 35.09, -66.57)
CIE-LCH	lch(39.65, 75.25, 297.80°)
OKLab	oklab(49.36% 0.0068 -0.192)
OKLCH	oklch(49.36% 0.192 272)
XYZ	xyz(15.8057, 11.0401, 58.4130)
Luminance	0.1104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404FCC #CCBD40

analogous

#4095CC #404FCC #7740CC

triadic

#404FCC #CC404F #4FCC40

tetradic

#404FCC #CC4095 #CCBD40 #40CC77

square

#404FCC #CC4095 #CCBD40 #40CC77

split-complementary

#404FCC #CC7740 #95CC40

monochromatic

#1F2873 #2C38A3 #404FCC #707CD9 #A1A8E6

Accessibility & contrast

On white

6.55

#404FCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#404FCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404FCC

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404FCC	#FFFFFF	#000000	##FFFFFF
##404FCC	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064D0

Deuteranopia (green-blind)

#0057CA

Tritanopia (blue-blind)

#006F86

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #404fcc;
/* rgb */ color: rgb(64, 79, 204);
/* oklch */ color: oklch(49.4% 0.192 272.0);

Tailwind

colors: {
  custom: {
    50: '#8680dd',
    500: '#404fcc',
    950: '#000000',
  },
}

SCSS

$custom: #404fcc;
$custom-light: #8680dd;
$custom-dark: #000000;

JSON

{
  "hex": "#404fcc",
  "rgb": {
    "r": 64,
    "g": 79,
    "b": 204
  },
  "hsl": {
    "h": 233.571,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.49365,
    "c": 0.19215,
    "h": 272
  },
  "luminance": 0.11042
}

Semantic roles & 50–950 ramp

primary

#404FCC

secondary

#D2CC95

accent

#D147E1

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0A15

muted

#7D7C83

Preview Lab

Preview with #404FCC

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

Preview Lab → · Contrast checker → · Palette generator →