#404DB7#404DB7

#404DB7 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.3% C 0.167 H 273.0°. Best body text is #FFFFFF at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#404DB7
RGB	rgb(64, 77, 183)
HSL	hsl(233, 48%, 48%)
HSV	hsv(233, 65%, 72%)
CMYK	cmyk(65%, 57.9%, 0%, 28.2%)
CIE-LAB	lab(37.51, 29.02, -57.80)
CIE-LCH	lch(37.51, 64.67, 296.66°)
OKLab	oklab(47.27% 0.0086 -0.1663)
OKLCH	oklch(47.27% 0.167 273)
XYZ	xyz(13.3126, 9.8155, 45.9836)
Luminance	0.0982 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404DB7 #B7AA40

analogous

#4088B7 #404DB7 #6E40B7

triadic

#404DB7 #B7404D #4DB740

tetradic

#404DB7 #B74088 #B7AA40 #40B76E

square

#404DB7 #B74088 #B7AA40 #40B76E

split-complementary

#404DB7 #B76E40 #88B740

monochromatic

#20275C #303A8A #404DB7 #6974CB #979EDB

Accessibility & contrast

On white

7.09

#404DB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#404DB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404DB7

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404DB7	#FFFFFF	#000000	##FFFFFF
##404DB7	1.00	7.09	2.96	7.09
#FFFFFF	7.09	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBB

Deuteranopia (green-blind)

#0053B5

Tritanopia (blue-blind)

#00677A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #404db7;
/* rgb */ color: rgb(64, 77, 183);
/* oklch */ color: oklch(47.3% 0.167 273.0);

Tailwind

colors: {
  custom: {
    50: '#827ecd',
    500: '#404db7',
    950: '#000000',
  },
}

SCSS

$custom: #404db7;
$custom-light: #827ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#404db7",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 183
  },
  "hsl": {
    "h": 233.445,
    "s": 48.178,
    "l": 48.431
  },
  "oklch": {
    "l": 0.47266,
    "c": 0.16651,
    "h": 273
  },
  "luminance": 0.09817
}

Semantic roles & 50–950 ramp

primary

#404DB7

secondary

#C6C08D

accent

#C950D8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #404DB7

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

Preview Lab → · Contrast checker → · Palette generator →