#404EB2#404EB2

#404EB2 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.1% C 0.158 H 272.8°. Best body text is #FFFFFF at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#404EB2
RGB	rgb(64, 78, 178)
HSL	hsl(233, 47%, 47%)
HSV	hsv(233, 64%, 70%)
CMYK	cmyk(64%, 56.2%, 0%, 30.2%)
CIE-LAB	lab(37.39, 26.62, -55.03)
CIE-LCH	lch(37.39, 61.13, 295.81°)
OKLab	oklab(47.06% 0.0076 -0.1582)
OKLCH	oklch(47.06% 0.158 272.8)
XYZ	xyz(12.8719, 9.7520, 43.3148)
Luminance	0.0975 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404EB2 #B2A440

analogous

#4087B2 #404EB2 #6B40B2

triadic

#404EB2 #B2404E #4EB240

tetradic

#404EB2 #B24087 #B2A440 #40B26B

square

#404EB2 #B24087 #B2A440 #40B26B

split-complementary

#404EB2 #B26B40 #87B240

monochromatic

#202758 #303A85 #404EB2 #6773C8 #949CD8

Accessibility & contrast

On white

7.12

#404EB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#404EB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404EB2

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404EB2	#FFFFFF	#000000	##FFFFFF
##404EB2	1.00	7.12	2.95	7.12
#FFFFFF	7.12	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB5

Deuteranopia (green-blind)

#0053B0

Tritanopia (blue-blind)

#006678

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #404eb2;
/* rgb */ color: rgb(64, 78, 178);
/* oklch */ color: oklch(47.1% 0.158 272.8);

Tailwind

colors: {
  custom: {
    50: '#817fca',
    500: '#404eb2',
    950: '#000000',
  },
}

SCSS

$custom: #404eb2;
$custom-light: #817fca;
$custom-dark: #000000;

JSON

{
  "hex": "#404eb2",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 178
  },
  "hsl": {
    "h": 232.632,
    "s": 47.107,
    "l": 47.451
  },
  "oklch": {
    "l": 0.47062,
    "c": 0.15834,
    "h": 272.8
  },
  "luminance": 0.09753
}

Semantic roles & 50–950 ramp

primary

#404EB2

secondary

#C4BD8A

accent

#C651D7

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #404EB2

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

Preview Lab → · Contrast checker → · Palette generator →