#404CB6#404CB6

#404CB6 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 47.0% C 0.166 H 273.3°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#404CB6
RGB	rgb(64, 76, 182)
HSL	hsl(234, 48%, 48%)
HSV	hsv(234, 65%, 71%)
CMYK	cmyk(64.8%, 58.2%, 0%, 28.6%)
CIE-LAB	lab(37.18, 29.31, -57.74)
CIE-LCH	lch(37.18, 64.76, 296.91°)
OKLab	oklab(47% 0.0095 -0.1661)
OKLCH	oklch(47% 0.166 273.3)
XYZ	xyz(13.1395, 9.6351, 45.4142)
Luminance	0.0964 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CB6 #B6AA40

analogous

#4087B6 #404CB6 #6F40B6

triadic

#404CB6 #B6404C #4CB640

tetradic

#404CB6 #B64087 #B6AA40 #40B66F

square

#404CB6 #B64087 #B6AA40 #40B66F

split-complementary

#404CB6 #B66F40 #87B640

monochromatic

#20265B #303989 #404CB6 #6973CA #969DDA

Accessibility & contrast

On white

7.17

#404CB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#404CB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CB6

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CB6	#FFFFFF	#000000	##FFFFFF
##404CB6	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBA

Deuteranopia (green-blind)

#0052B4

Tritanopia (blue-blind)

#006679

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #404cb6;
/* rgb */ color: rgb(64, 76, 182);
/* oklch */ color: oklch(47.0% 0.166 273.3);

Tailwind

colors: {
  custom: {
    50: '#827ecd',
    500: '#404cb6',
    950: '#000000',
  },
}

SCSS

$custom: #404cb6;
$custom-light: #827ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#404cb6",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 182
  },
  "hsl": {
    "h": 233.898,
    "s": 47.967,
    "l": 48.235
  },
  "oklch": {
    "l": 0.46997,
    "c": 0.16641,
    "h": 273.3
  },
  "luminance": 0.09636
}

Semantic roles & 50–950 ramp

primary

#404CB6

secondary

#C6C08C

accent

#CA50D8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #404CB6

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

Preview Lab → · Contrast checker → · Palette generator →