#404BD9#404BD9

#404BD9 is a mid, highly saturated blue. Relative luminance 0.111; OKLCH L 49.8% C 0.213 H 272.4°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#404BD9
RGB	rgb(64, 75, 217)
HSL	hsl(236, 67%, 55%)
HSV	hsv(236, 71%, 85%)
CMYK	cmyk(70.5%, 65.4%, 0%, 14.9%)
CIE-LAB	lab(39.80, 42.03, -73.80)
CIE-LCH	lch(39.80, 84.93, 299.66°)
OKLab	oklab(49.81% 0.0088 -0.2133)
OKLCH	oklch(49.81% 0.213 272.4)
XYZ	xyz(17.1506, 11.1302, 66.8767)
Luminance	0.1113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.43

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404BD9 #D9CE40

analogous

#4098D9 #404BD9 #8140D9

triadic

#404BD9 #D9404B #4BD940

tetradic

#404BD9 #D94098 #D9CE40 #40D981

square

#404BD9 #D94098 #D9CE40 #40D981

split-complementary

#404BD9 #D98140 #98D940

monochromatic

#1A2284 #242FB7 #404BD9 #737BE3 #A6ABED

Accessibility & contrast

On white

6.51

#404BD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#404BD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404BD9

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404BD9	#FFFFFF	#000000	##FFFFFF
##404BD9	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065DD

Deuteranopia (green-blind)

#0057D6

Tritanopia (blue-blind)

#00718B

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #404bd9;
/* rgb */ color: rgb(64, 75, 217);
/* oklch */ color: oklch(49.8% 0.213 272.4);

Tailwind

colors: {
  custom: {
    50: '#897de6',
    500: '#404bd9',
    950: '#000000',
  },
}

SCSS

$custom: #404bd9;
$custom-light: #897de6;
$custom-dark: #000000;

JSON

{
  "hex": "#404bd9",
  "rgb": {
    "r": 64,
    "g": 75,
    "b": 217
  },
  "hsl": {
    "h": 235.686,
    "s": 66.812,
    "l": 55.098
  },
  "oklch": {
    "l": 0.49812,
    "c": 0.21346,
    "h": 272.4
  },
  "luminance": 0.11132
}

Semantic roles & 50–950 ramp

primary

#404BD9

secondary

#DAD69A

accent

#DD3EEA

background

#F9F7FE

surface

#F1EEFC

border

#CBC9D5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #404BD9

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

Preview Lab → · Contrast checker → · Palette generator →