#404EB0#404EB0

#404EB0 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.9% C 0.156 H 272.8°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#404EB0
RGB	rgb(64, 78, 176)
HSL	hsl(233, 47%, 47%)
HSV	hsv(233, 64%, 69%)
CMYK	cmyk(63.6%, 55.7%, 0%, 31%)
CIE-LAB	lab(37.25, 25.92, -54.09)
CIE-LCH	lch(37.25, 59.98, 295.60°)
OKLab	oklab(46.91% 0.0075 -0.1554)
OKLCH	oklch(46.91% 0.156 272.8)
XYZ	xyz(12.6726, 9.6723, 42.2650)
Luminance	0.0967 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404EB0 #B0A240

analogous

#4086B0 #404EB0 #6A40B0

triadic

#404EB0 #B0404E #4EB040

tetradic

#404EB0 #B04086 #B0A240 #40B06A

square

#404EB0 #B04086 #B0A240 #40B06A

split-complementary

#404EB0 #B06A40 #86B040

monochromatic

#1F2656 #303A83 #404EB0 #6672C7 #939BD8

Accessibility & contrast

On white

7.16

#404EB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#404EB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404EB0

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404EB0	#FFFFFF	#000000	##FFFFFF
##404EB0	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB3

Deuteranopia (green-blind)

#0053AE

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #404eb0;
/* rgb */ color: rgb(64, 78, 176);
/* oklch */ color: oklch(46.9% 0.156 272.8);

Tailwind

colors: {
  custom: {
    50: '#817fc8',
    500: '#404eb0',
    950: '#000000',
  },
}

SCSS

$custom: #404eb0;
$custom-light: #817fc8;
$custom-dark: #000000;

JSON

{
  "hex": "#404eb0",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 176
  },
  "hsl": {
    "h": 232.5,
    "s": 46.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.46907,
    "c": 0.15555,
    "h": 272.8
  },
  "luminance": 0.09673
}

Semantic roles & 50–950 ramp

primary

#404EB0

secondary

#C3BC89

accent

#C651D6

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #404EB0

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

Preview Lab → · Contrast checker → · Palette generator →