#404EB5#404EB5

#404EB5 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.3% C 0.162 H 272.7°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#404EB5
RGB	rgb(64, 78, 181)
HSL	hsl(233, 48%, 48%)
HSV	hsv(233, 65%, 71%)
CMYK	cmyk(64.6%, 56.9%, 0%, 29%)
CIE-LAB	lab(37.62, 27.68, -56.45)
CIE-LCH	lch(37.62, 62.87, 296.12°)
OKLab	oklab(47.3% 0.0077 -0.1623)
OKLCH	oklch(47.3% 0.162 272.7)
XYZ	xyz(13.1765, 9.8738, 44.9186)
Luminance	0.0988 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404EB5 #B5A740

analogous

#4088B5 #404EB5 #6D40B5

triadic

#404EB5 #B5404E #4EB540

tetradic

#404EB5 #B54088 #B5A740 #40B56D

square

#404EB5 #B54088 #B5A740 #40B56D

split-complementary

#404EB5 #B56D40 #88B540

monochromatic

#20275B #303B88 #404EB5 #6874CA #969EDA

Accessibility & contrast

On white

7.06

#404EB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#404EB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404EB5

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404EB5	#FFFFFF	#000000	##FFFFFF
##404EB5	1.00	7.06	2.97	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB9

Deuteranopia (green-blind)

#0053B3

Tritanopia (blue-blind)

#00677A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #404eb5;
/* rgb */ color: rgb(64, 78, 181);
/* oklch */ color: oklch(47.3% 0.162 272.7);

Tailwind

colors: {
  custom: {
    50: '#827fcc',
    500: '#404eb5',
    950: '#000000',
  },
}

SCSS

$custom: #404eb5;
$custom-light: #827fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#404eb5",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 181
  },
  "hsl": {
    "h": 232.821,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.47298,
    "c": 0.16249,
    "h": 272.7
  },
  "luminance": 0.09875
}

Semantic roles & 50–950 ramp

primary

#404EB5

secondary

#C5BE8B

accent

#C750D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A13

muted

#7D7C82

Preview Lab

Preview with #404EB5

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

Preview Lab → · Contrast checker → · Palette generator →