#404ECB#404ECB

#404ECB is a mid, vivid blue. Relative luminance 0.109; OKLCH L 49.1% C 0.192 H 272.3°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#404ECB
RGB	rgb(64, 78, 203)
HSL	hsl(234, 57%, 52%)
HSV	hsv(234, 68%, 80%)
CMYK	cmyk(68.5%, 61.6%, 0%, 20.4%)
CIE-LAB	lab(39.33, 35.37, -66.51)
CIE-LCH	lch(39.33, 75.33, 298.00°)
OKLab	oklab(49.1% 0.0076 -0.1919)
OKLCH	oklch(49.1% 0.192 272.3)
XYZ	xyz(15.6146, 10.8491, 57.7595)
Luminance	0.1085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.00

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404ECB #CBBD40

analogous

#4093CB #404ECB #7840CB

triadic

#404ECB #CB404E #4ECB40

tetradic

#404ECB #CB4093 #CBBD40 #40CB78

square

#404ECB #CB4093 #CBBD40 #40CB78

split-complementary

#404ECB #CB7840 #93CB40

monochromatic

#1F2772 #2C38A2 #404ECB #707BD8 #A0A7E5

Accessibility & contrast

On white

6.62

#404ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#404ECB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404ECB

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404ECB	#FFFFFF	#000000	##FFFFFF
##404ECB	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063CF

Deuteranopia (green-blind)

#0056C9

Tritanopia (blue-blind)

#006E85

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #404ecb;
/* rgb */ color: rgb(64, 78, 203);
/* oklch */ color: oklch(49.1% 0.192 272.3);

Tailwind

colors: {
  custom: {
    50: '#867fdc',
    500: '#404ecb',
    950: '#000000',
  },
}

SCSS

$custom: #404ecb;
$custom-light: #867fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#404ecb",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 203
  },
  "hsl": {
    "h": 233.957,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.49102,
    "c": 0.19204,
    "h": 272.3
  },
  "luminance": 0.10851
}

Semantic roles & 50–950 ramp

primary

#404ECB

secondary

#D2CC95

accent

#D147E0

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0A15

muted

#7D7C83

Preview Lab

Preview with #404ECB

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

Preview Lab → · Contrast checker → · Palette generator →