#404FB5#404FB5

#404FB5 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.5% C 0.161 H 272.4°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#404FB5
RGB	rgb(64, 79, 181)
HSL	hsl(232, 48%, 48%)
HSV	hsv(232, 65%, 71%)
CMYK	cmyk(64.6%, 56.4%, 0%, 29%)
CIE-LAB	lab(37.87, 27.03, -56.03)
CIE-LCH	lch(37.87, 62.21, 295.76°)
OKLab	oklab(47.49% 0.0068 -0.1611)
OKLCH	oklch(47.49% 0.161 272.4)
XYZ	xyz(13.2480, 10.0170, 44.9424)
Luminance	0.1002 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404FB5 #B5A640

analogous

#4089B5 #404FB5 #6C40B5

triadic

#404FB5 #B5404F #4FB540

tetradic

#404FB5 #B54089 #B5A640 #40B56C

square

#404FB5 #B54089 #B5A640 #40B56C

split-complementary

#404FB5 #B56C40 #89B540

monochromatic

#20285B #303B88 #404FB5 #6875CA #969EDA

Accessibility & contrast

On white

6.99

#404FB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.00

#404FB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404FB5

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404FB5	#FFFFFF	#000000	##FFFFFF
##404FB5	1.00	6.99	3.00	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FB8

Deuteranopia (green-blind)

#0054B3

Tritanopia (blue-blind)

#00677A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #404fb5;
/* rgb */ color: rgb(64, 79, 181);
/* oklch */ color: oklch(47.5% 0.161 272.4);

Tailwind

colors: {
  custom: {
    50: '#8180cc',
    500: '#404fb5',
    950: '#000000',
  },
}

SCSS

$custom: #404fb5;
$custom-light: #8180cc;
$custom-dark: #000000;

JSON

{
  "hex": "#404fb5",
  "rgb": {
    "r": 64,
    "g": 79,
    "b": 181
  },
  "hsl": {
    "h": 232.308,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.4749,
    "c": 0.16121,
    "h": 272.4
  },
  "luminance": 0.10018
}

Semantic roles & 50–950 ramp

primary

#404FB5

secondary

#C5BE8B

accent

#C650D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #404FB5

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

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