#404DCB#404DCB

#404DCB is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.9% C 0.193 H 272.5°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#404DCB
RGB	rgb(64, 77, 203)
HSL	hsl(234, 57%, 52%)
HSV	hsv(234, 68%, 80%)
CMYK	cmyk(68.5%, 62.1%, 0%, 20.4%)
CIE-LAB	lab(39.08, 36.00, -66.91)
CIE-LCH	lch(39.08, 75.98, 298.28°)
OKLab	oklab(48.92% 0.0083 -0.193)
OKLCH	oklch(48.92% 0.193 272.5)
XYZ	xyz(15.5441, 10.7081, 57.7360)
Luminance	0.1071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.71

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404DCB #CBBE40

analogous

#4093CB #404DCB #7840CB

triadic

#404DCB #CB404D #4DCB40

tetradic

#404DCB #CB4093 #CBBE40 #40CB78

square

#404DCB #CB4093 #CBBE40 #40CB78

split-complementary

#404DCB #CB7840 #93CB40

monochromatic

#1F2772 #2C37A2 #404DCB #707AD8 #A0A7E5

Accessibility & contrast

On white

6.68

#404DCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#404DCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404DCB

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404DCB	#FFFFFF	#000000	##FFFFFF
##404DCB	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063CF

Deuteranopia (green-blind)

#0056C9

Tritanopia (blue-blind)

#006D85

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #404dcb;
/* rgb */ color: rgb(64, 77, 203);
/* oklch */ color: oklch(48.9% 0.193 272.5);

Tailwind

colors: {
  custom: {
    50: '#867fdc',
    500: '#404dcb',
    950: '#000000',
  },
}

SCSS

$custom: #404dcb;
$custom-light: #867fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#404dcb",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 203
  },
  "hsl": {
    "h": 234.388,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.48924,
    "c": 0.19323,
    "h": 272.5
  },
  "luminance": 0.1071
}

Semantic roles & 50–950 ramp

primary

#404DCB

secondary

#D2CC95

accent

#D247E0

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0A15

muted

#7D7C83

Preview Lab

Preview with #404DCB

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

Preview Lab → · Contrast checker → · Palette generator →