#404CB4#404CB4

#404CB4 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.8% C 0.164 H 273.3°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#404CB4
RGB	rgb(64, 76, 180)
HSL	hsl(234, 48%, 48%)
HSV	hsv(234, 64%, 71%)
CMYK	cmyk(64.4%, 57.8%, 0%, 29.4%)
CIE-LAB	lab(37.03, 28.61, -56.81)
CIE-LCH	lch(37.03, 63.61, 296.73°)
OKLab	oklab(46.84% 0.0095 -0.1634)
OKLCH	oklch(46.84% 0.164 273.3)
XYZ	xyz(12.9343, 9.5530, 44.3335)
Luminance	0.0955 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CB4 #B4A840

analogous

#4086B4 #404CB4 #6E40B4

triadic

#404CB4 #B4404C #4CB440

tetradic

#404CB4 #B44086 #B4A840 #40B46E

square

#404CB4 #B44086 #B4A840 #40B46E

split-complementary

#404CB4 #B46E40 #86B440

monochromatic

#20265A #303987 #404CB4 #6872C9 #959CD9

Accessibility & contrast

On white

7.21

#404CB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#404CB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CB4

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CB4	#FFFFFF	#000000	##FFFFFF
##404CB4	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB8

Deuteranopia (green-blind)

#0052B2

Tritanopia (blue-blind)

#006578

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #404cb4;
/* rgb */ color: rgb(64, 76, 180);
/* oklch */ color: oklch(46.8% 0.164 273.3);

Tailwind

colors: {
  custom: {
    50: '#817ecb',
    500: '#404cb4',
    950: '#000000',
  },
}

SCSS

$custom: #404cb4;
$custom-light: #817ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#404cb4",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 180
  },
  "hsl": {
    "h": 233.793,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.46837,
    "c": 0.16368,
    "h": 273.3
  },
  "luminance": 0.09554
}

Semantic roles & 50–950 ramp

primary

#404CB4

secondary

#C5BF8B

accent

#C951D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #404CB4

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

Preview Lab → · Contrast checker → · Palette generator →