#404FDF#404FDF

#404FDF is a mid, highly saturated blue. Relative luminance 0.120; OKLCH L 51.0% C 0.217 H 271.5°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#404FDF
RGB	rgb(64, 79, 223)
HSL	hsl(234, 71%, 56%)
HSV	hsv(234, 71%, 87%)
CMYK	cmyk(71.3%, 64.6%, 0%, 12.5%)
CIE-LAB	lab(41.23, 41.65, -74.89)
CIE-LCH	lch(41.23, 85.69, 299.08°)
OKLab	oklab(51.01% 0.0059 -0.2164)
OKLCH	oklch(51.01% 0.217 271.5)
XYZ	xyz(18.2251, 12.0078, 71.1550)
Luminance	0.1201 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404FDF #DFD040

analogous

#409EDF #404FDF #8140DF

triadic

#404FDF #DF404F #4FDF40

tetradic

#404FDF #DF409E #DFD040 #40DF81

square

#404FDF #DF409E #DFD040 #40DF81

split-complementary

#404FDF #DF8140 #9EDF40

monochromatic

#18238D #2030C1 #404FDF #747FE8 #A9B0F1

Accessibility & contrast

On white

6.17

#404FDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#404FDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404FDF

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404FDF	#FFFFFF	#000000	##FFFFFF
##404FDF	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069E4

Deuteranopia (green-blind)

#005ADC

Tritanopia (blue-blind)

#007590

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #404fdf;
/* rgb */ color: rgb(64, 79, 223);
/* oklch */ color: oklch(51.0% 0.217 271.5);

Tailwind

colors: {
  custom: {
    50: '#8a80ea',
    500: '#404fdf',
    950: '#000000',
  },
}

SCSS

$custom: #404fdf;
$custom-light: #8a80ea;
$custom-dark: #000000;

JSON

{
  "hex": "#404fdf",
  "rgb": {
    "r": 64,
    "g": 79,
    "b": 223
  },
  "hsl": {
    "h": 234.34,
    "s": 71.3,
    "l": 56.275
  },
  "oklch": {
    "l": 0.51014,
    "c": 0.21651,
    "h": 271.5
  },
  "luminance": 0.1201
}

Semantic roles & 50–950 ramp

primary

#404FDF

secondary

#DED89D

accent

#DD3AEE

background

#F9F7FE

surface

#F2EEFD

border

#CCC9D5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #404FDF

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

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