#404FB9#404FB9

#404FB9 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.8% C 0.167 H 272.4°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#404FB9
RGB	rgb(64, 79, 185)
HSL	hsl(233, 49%, 49%)
HSV	hsv(233, 65%, 73%)
CMYK	cmyk(65.4%, 57.3%, 0%, 27.5%)
CIE-LAB	lab(38.17, 28.44, -57.90)
CIE-LCH	lch(38.17, 64.51, 296.16°)
OKLab	oklab(47.81% 0.0069 -0.1666)
OKLCH	oklch(47.81% 0.167 272.4)
XYZ	xyz(13.6644, 10.1835, 47.1351)
Luminance	0.1018 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404FB9 #B9AA40

analogous

#408CB9 #404FB9 #6E40B9

triadic

#404FB9 #B9404F #4FB940

tetradic

#404FB9 #B9408C #B9AA40 #40B96E

square

#404FB9 #B9408C #B9AA40 #40B96E

split-complementary

#404FB9 #B96E40 #8CB940

monochromatic

#21285E #303C8C #404FB9 #6B77CC #98A0DB

Accessibility & contrast

On white

6.91

#404FB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#404FB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404FB9

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404FB9	#FFFFFF	#000000	##FFFFFF
##404FB9	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBD

Deuteranopia (green-blind)

#0055B7

Tritanopia (blue-blind)

#00697C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #404fb9;
/* rgb */ color: rgb(64, 79, 185);
/* oklch */ color: oklch(47.8% 0.167 272.4);

Tailwind

colors: {
  custom: {
    50: '#8280cf',
    500: '#404fb9',
    950: '#000000',
  },
}

SCSS

$custom: #404fb9;
$custom-light: #8280cf;
$custom-dark: #000000;

JSON

{
  "hex": "#404fb9",
  "rgb": {
    "r": 64,
    "g": 79,
    "b": 185
  },
  "hsl": {
    "h": 232.562,
    "s": 48.594,
    "l": 48.824
  },
  "oklch": {
    "l": 0.47806,
    "c": 0.16671,
    "h": 272.4
  },
  "luminance": 0.10185
}

Semantic roles & 50–950 ramp

primary

#404FB9

secondary

#C7C08E

accent

#C750D8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #404FB9

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

Preview Lab → · Contrast checker → · Palette generator →