#404CB0#404CB0

#404CB0 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.5% C 0.158 H 273.4°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#404CB0
RGB	rgb(64, 76, 176)
HSL	hsl(234, 47%, 47%)
HSV	hsv(234, 64%, 69%)
CMYK	cmyk(63.6%, 56.8%, 0%, 31%)
CIE-LAB	lab(36.73, 27.21, -54.93)
CIE-LCH	lch(36.73, 61.30, 296.35°)
OKLab	oklab(46.52% 0.0094 -0.1579)
OKLCH	oklch(46.52% 0.158 273.4)
XYZ	xyz(12.5327, 9.3924, 42.2183)
Luminance	0.0939 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CB0 #B0A440

analogous

#4084B0 #404CB0 #6C40B0

triadic

#404CB0 #B0404C #4CB040

tetradic

#404CB0 #B04084 #B0A440 #40B06C

square

#404CB0 #B04084 #B0A440 #40B06C

split-complementary

#404CB0 #B06C40 #84B040

monochromatic

#1F2556 #303983 #404CB0 #6670C7 #939AD8

Accessibility & contrast

On white

7.30

#404CB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#404CB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CB0

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CB0	#FFFFFF	#000000	##FFFFFF
##404CB0	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB3

Deuteranopia (green-blind)

#0052AE

Tritanopia (blue-blind)

#006476

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #404cb0;
/* rgb */ color: rgb(64, 76, 176);
/* oklch */ color: oklch(46.5% 0.158 273.4);

Tailwind

colors: {
  custom: {
    50: '#817ec8',
    500: '#404cb0',
    950: '#000000',
  },
}

SCSS

$custom: #404cb0;
$custom-light: #817ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#404cb0",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 176
  },
  "hsl": {
    "h": 233.571,
    "s": 46.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.46519,
    "c": 0.15815,
    "h": 273.4
  },
  "luminance": 0.09393
}

Semantic roles & 50–950 ramp

primary

#404CB0

secondary

#C3BD89

accent

#C851D6

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #404CB0

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

Preview Lab → · Contrast checker → · Palette generator →