#403FBD#403FBD

#403FBD is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.3% C 0.192 H 275.9°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#403FBD
RGB	rgb(64, 63, 189)
HSL	hsl(240, 50%, 49%)
HSV	hsv(240, 67%, 74%)
CMYK	cmyk(66.1%, 66.7%, 0%, 25.9%)
CIE-LAB	lab(34.64, 39.84, -66.01)
CIE-LCH	lch(34.64, 77.11, 301.11°)
OKLab	oklab(45.31% 0.0197 -0.1905)
OKLCH	oklch(45.31% 0.192 275.9)
XYZ	xyz(13.0742, 8.3180, 49.0508)
Luminance	0.0832 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.39

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403FBD #BCBD3F

analogous

#3F7DBD #403FBD #7F3FBD

triadic

#403FBD #BD403F #3FBD40

tetradic

#403FBD #BD3F7D #BCBD3F #3FBD7F

square

#403FBD #BD3F7D #BCBD3F #3FBD7F

split-complementary

#403FBD #BD7F3F #7DBD3F

monochromatic

#212061 #30308F #403FBD #6C6BCE #9A99DD

Accessibility & contrast

On white

7.88

#403FBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#403FBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FBD

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FBD	#FFFFFF	#000000	##FFFFFF
##403FBD	1.00	7.88	2.66	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C1

Deuteranopia (green-blind)

#004CBB

Tritanopia (blue-blind)

#006078

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #403fbd;
/* rgb */ color: rgb(64, 63, 189);
/* oklch */ color: oklch(45.3% 0.192 275.9);

Tailwind

colors: {
  custom: {
    50: '#8475d2',
    500: '#403fbd',
    950: '#000000',
  },
}

SCSS

$custom: #403fbd;
$custom-light: #8475d2;
$custom-dark: #000000;

JSON

{
  "hex": "#403fbd",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 189
  },
  "hsl": {
    "h": 240.476,
    "s": 50,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45307,
    "c": 0.19153,
    "h": 275.9
  },
  "luminance": 0.08319
}

Semantic roles & 50–950 ramp

primary

#403FBD

secondary

#C9C98F

accent

#DA4ED8

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #403FBD

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

Preview Lab → · Contrast checker → · Palette generator →