#404DD9#404DD9

#404DD9 is a mid, highly saturated blue. Relative luminance 0.114; OKLCH L 50.1% C 0.211 H 272.0°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#404DD9
RGB	rgb(64, 77, 217)
HSL	hsl(235, 67%, 55%)
HSV	hsv(235, 71%, 85%)
CMYK	cmyk(70.5%, 64.5%, 0%, 14.9%)
CIE-LAB	lab(40.26, 40.82, -73.05)
CIE-LCH	lch(40.26, 83.68, 299.19°)
OKLab	oklab(50.15% 0.0076 -0.2111)
OKLCH	oklch(50.15% 0.211 272)
XYZ	xyz(17.2884, 11.4058, 66.9226)
Luminance	0.1141 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404DD9 #D9CC40

analogous

#4099D9 #404DD9 #8040D9

triadic

#404DD9 #D9404D #4DD940

tetradic

#404DD9 #D94099 #D9CC40 #40D980

square

#404DD9 #D94099 #D9CC40 #40D980

split-complementary

#404DD9 #D98040 #99D940

monochromatic

#1A2384 #2431B7 #404DD9 #737DE3 #A6ACED

Accessibility & contrast

On white

6.40

#404DD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#404DD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404DD9

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404DD9	#FFFFFF	#000000	##FFFFFF
##404DD9	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066DD

Deuteranopia (green-blind)

#0058D6

Tritanopia (blue-blind)

#00728C

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #404dd9;
/* rgb */ color: rgb(64, 77, 217);
/* oklch */ color: oklch(50.1% 0.211 272.0);

Tailwind

colors: {
  custom: {
    50: '#897fe6',
    500: '#404dd9',
    950: '#000000',
  },
}

SCSS

$custom: #404dd9;
$custom-light: #897fe6;
$custom-dark: #000000;

JSON

{
  "hex": "#404dd9",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 217
  },
  "hsl": {
    "h": 234.902,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.50145,
    "c": 0.2112,
    "h": 272
  },
  "luminance": 0.11407
}

Semantic roles & 50–950 ramp

primary

#404DD9

secondary

#DAD59A

accent

#DB3EEA

background

#F9F7FE

surface

#F1EEFC

border

#CBC9D5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #404DD9

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

Preview Lab → · Contrast checker → · Palette generator →