#404CDF#404CDF

#404CDF is a mid, highly saturated blue. Relative luminance 0.116; OKLCH L 50.5% C 0.220 H 272.0°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#404CDF
RGB	rgb(64, 76, 223)
HSL	hsl(235, 71%, 56%)
HSV	hsv(235, 71%, 87%)
CMYK	cmyk(71.3%, 65.9%, 0%, 12.5%)
CIE-LAB	lab(40.55, 43.46, -76.00)
CIE-LCH	lch(40.55, 87.55, 299.76°)
OKLab	oklab(50.52% 0.0077 -0.2197)
OKLCH	oklch(50.52% 0.22 272)
XYZ	xyz(18.0136, 11.5848, 71.0845)
Luminance	0.1159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CDF #DFD340

analogous

#409CDF #404CDF #8440DF

triadic

#404CDF #DF404C #4CDF40

tetradic

#404CDF #DF409C #DFD340 #40DF84

square

#404CDF #DF409C #DFD340 #40DF84

split-complementary

#404CDF #DF8440 #9CDF40

monochromatic

#18208D #202DC1 #404CDF #747DE8 #A9AEF1

Accessibility & contrast

On white

6.33

#404CDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#404CDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404CDF

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CDF	#FFFFFF	#000000	##FFFFFF
##404CDF	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067E4

Deuteranopia (green-blind)

#0058DC

Tritanopia (blue-blind)

#00738F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #404cdf;
/* rgb */ color: rgb(64, 76, 223);
/* oklch */ color: oklch(50.5% 0.220 272.0);

Tailwind

colors: {
  custom: {
    50: '#8a7eea',
    500: '#404cdf',
    950: '#000000',
  },
}

SCSS

$custom: #404cdf;
$custom-light: #8a7eea;
$custom-dark: #000000;

JSON

{
  "hex": "#404cdf",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 223
  },
  "hsl": {
    "h": 235.472,
    "s": 71.3,
    "l": 56.275
  },
  "oklch": {
    "l": 0.50518,
    "c": 0.21985,
    "h": 272
  },
  "luminance": 0.11587
}

Semantic roles & 50–950 ramp

primary

#404CDF

secondary

#DED99D

accent

#E03AEE

background

#F9F7FE

surface

#F2EEFD

border

#CCC9D5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #404CDF

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

Preview Lab → · Contrast checker → · Palette generator →