#404CB8#404CB8

#404CB8 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 47.2% C 0.169 H 273.2°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#404CB8
RGB	rgb(64, 76, 184)
HSL	hsl(234, 48%, 49%)
HSV	hsv(234, 65%, 72%)
CMYK	cmyk(65.2%, 58.7%, 0%, 27.8%)
CIE-LAB	lab(37.33, 30.01, -58.67)
CIE-LCH	lch(37.33, 65.90, 297.09°)
OKLab	oklab(47.16% 0.0095 -0.1689)
OKLCH	oklch(47.16% 0.169 273.2)
XYZ	xyz(13.3476, 9.7184, 46.5105)
Luminance	0.0972 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CB8 #B8AC40

analogous

#4088B8 #404CB8 #7040B8

triadic

#404CB8 #B8404C #4CB840

tetradic

#404CB8 #B84088 #B8AC40 #40B870

square

#404CB8 #B84088 #B8AC40 #40B870

split-complementary

#404CB8 #B87040 #88B840

monochromatic

#20265D #30398B #404CB8 #6A74CB #979EDB

Accessibility & contrast

On white

7.13

#404CB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#404CB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CB8

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CB8	#FFFFFF	#000000	##FFFFFF
##404CB8	1.00	7.13	2.94	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBC

Deuteranopia (green-blind)

#0053B6

Tritanopia (blue-blind)

#00667A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #404cb8;
/* rgb */ color: rgb(64, 76, 184);
/* oklch */ color: oklch(47.2% 0.169 273.2);

Tailwind

colors: {
  custom: {
    50: '#827ece',
    500: '#404cb8',
    950: '#000000',
  },
}

SCSS

$custom: #404cb8;
$custom-light: #827ece;
$custom-dark: #000000;

JSON

{
  "hex": "#404cb8",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 184
  },
  "hsl": {
    "h": 234,
    "s": 48.387,
    "l": 48.627
  },
  "oklch": {
    "l": 0.47159,
    "c": 0.16915,
    "h": 273.2
  },
  "luminance": 0.0972
}

Semantic roles & 50–950 ramp

primary

#404CB8

secondary

#C7C18D

accent

#CA50D8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #404CB8

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

Preview Lab → · Contrast checker → · Palette generator →