#404BDF#404BDF

#404BDF is a mid, highly saturated blue. Relative luminance 0.115; OKLCH L 50.4% C 0.221 H 272.2°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#404BDF
RGB	rgb(64, 75, 223)
HSL	hsl(236, 71%, 56%)
HSV	hsv(236, 71%, 87%)
CMYK	cmyk(71.3%, 66.4%, 0%, 12.5%)
CIE-LAB	lab(40.33, 44.06, -76.37)
CIE-LCH	lch(40.33, 88.17, 299.98°)
OKLab	oklab(50.36% 0.0083 -0.2208)
OKLCH	oklch(50.36% 0.221 272.2)
XYZ	xyz(17.9452, 11.4480, 71.0617)
Luminance	0.1145 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404BDF #DFD440

analogous

#409BDF #404BDF #8540DF

triadic

#404BDF #DF404B #4BDF40

tetradic

#404BDF #DF409B #DFD440 #40DF85

square

#404BDF #DF409B #DFD440 #40DF85

split-complementary

#404BDF #DF8540 #9BDF40

monochromatic

#18208D #202CC1 #404BDF #747CE8 #A9AEF1

Accessibility & contrast

On white

6.38

#404BDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#404BDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404BDF

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404BDF	#FFFFFF	#000000	##FFFFFF
##404BDF	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067E4

Deuteranopia (green-blind)

#0058DC

Tritanopia (blue-blind)

#00738F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #404bdf;
/* rgb */ color: rgb(64, 75, 223);
/* oklch */ color: oklch(50.4% 0.221 272.2);

Tailwind

colors: {
  custom: {
    50: '#8a7eea',
    500: '#404bdf',
    950: '#000000',
  },
}

SCSS

$custom: #404bdf;
$custom-light: #8a7eea;
$custom-dark: #000000;

JSON

{
  "hex": "#404bdf",
  "rgb": {
    "r": 64,
    "g": 75,
    "b": 223
  },
  "hsl": {
    "h": 235.849,
    "s": 71.3,
    "l": 56.275
  },
  "oklch": {
    "l": 0.50355,
    "c": 0.22095,
    "h": 272.2
  },
  "luminance": 0.1145
}

Semantic roles & 50–950 ramp

primary

#404BDF

secondary

#DEDA9D

accent

#E23AEE

background

#F9F7FE

surface

#F2EEFD

border

#CCC9D5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #404BDF

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

Preview Lab → · Contrast checker → · Palette generator →