#404BCB#404BCB

#404BCB is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.6% C 0.196 H 272.9°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#404BCB
RGB	rgb(64, 75, 203)
HSL	hsl(235, 57%, 52%)
HSV	hsv(235, 68%, 80%)
CMYK	cmyk(68.5%, 63.1%, 0%, 20.4%)
CIE-LAB	lab(38.61, 37.24, -67.69)
CIE-LCH	lch(38.61, 77.25, 298.82°)
OKLab	oklab(48.57% 0.0098 -0.1953)
OKLCH	oklch(48.57% 0.196 272.9)
XYZ	xyz(15.4063, 10.4325, 57.6901)
Luminance	0.1043 (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

#404BCB #CBC040

analogous

#4090CB #404BCB #7B40CB

triadic

#404BCB #CB404B #4BCB40

tetradic

#404BCB #CB4090 #CBC040 #40CB7B

square

#404BCB #CB4090 #CBC040 #40CB7B

split-complementary

#404BCB #CB7B40 #90CB40

monochromatic

#1F2572 #2C35A2 #404BCB #7078D8 #A0A6E5

Accessibility & contrast

On white

6.80

#404BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#404BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404BCB

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404BCB	#FFFFFF	#000000	##FFFFFF
##404BCB	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061CF

Deuteranopia (green-blind)

#0055C9

Tritanopia (blue-blind)

#006C84

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #404bcb;
/* rgb */ color: rgb(64, 75, 203);
/* oklch */ color: oklch(48.6% 0.196 272.9);

Tailwind

colors: {
  custom: {
    50: '#867ddc',
    500: '#404bcb',
    950: '#000000',
  },
}

SCSS

$custom: #404bcb;
$custom-light: #867ddc;
$custom-dark: #000000;

JSON

{
  "hex": "#404bcb",
  "rgb": {
    "r": 64,
    "g": 75,
    "b": 203
  },
  "hsl": {
    "h": 235.252,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.48574,
    "c": 0.1956,
    "h": 272.9
  },
  "luminance": 0.10434
}

Semantic roles & 50–950 ramp

primary

#404BCB

secondary

#D2CD95

accent

#D447E0

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #404BCB

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

Preview Lab → · Contrast checker → · Palette generator →