#404EA8#404EA8

#404EA8 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.3% C 0.144 H 272.8°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#404EA8
RGB	rgb(64, 78, 168)
HSL	hsl(232, 45%, 45%)
HSV	hsv(232, 62%, 66%)
CMYK	cmyk(61.9%, 53.6%, 0%, 34.1%)
CIE-LAB	lab(36.68, 23.10, -50.26)
CIE-LCH	lch(36.68, 55.31, 294.69°)
OKLab	oklab(46.3% 0.0071 -0.1441)
OKLCH	oklch(46.3% 0.144 272.8)
XYZ	xyz(11.9043, 9.3650, 38.2185)
Luminance	0.0937 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404EA8 #A89A40

analogous

#4082A8 #404EA8 #6640A8

triadic

#404EA8 #A8404E #4EA840

tetradic

#404EA8 #A84082 #A89A40 #40A866

square

#404EA8 #A84082 #A89A40 #40A866

split-complementary

#404EA8 #A86640 #82A840

monochromatic

#1E254F #2F397C #404EA8 #626FC3 #8E98D4

Accessibility & contrast

On white

7.31

#404EA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#404EA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404EA8

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404EA8	#FFFFFF	#000000	##FFFFFF
##404EA8	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#165BAB

Deuteranopia (green-blind)

#0052A6

Tritanopia (blue-blind)

#006373

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #404ea8;
/* rgb */ color: rgb(64, 78, 168);
/* oklch */ color: oklch(46.3% 0.144 272.8);

Tailwind

colors: {
  custom: {
    50: '#7f7fc2',
    500: '#404ea8',
    950: '#000000',
  },
}

SCSS

$custom: #404ea8;
$custom-light: #7f7fc2;
$custom-dark: #000000;

JSON

{
  "hex": "#404ea8",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 168
  },
  "hsl": {
    "h": 231.923,
    "s": 44.828,
    "l": 45.49
  },
  "oklch": {
    "l": 0.46298,
    "c": 0.14427,
    "h": 272.8
  },
  "luminance": 0.09366
}

Semantic roles & 50–950 ramp

primary

#404EA8

secondary

#BFB785

accent

#C353D5

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A12

muted

#7C7C81

Preview Lab

Preview with #404EA8

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

Preview Lab → · Contrast checker → · Palette generator →