#403E9D#403E9D

#403E9D is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.4% C 0.150 H 278.8°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#403E9D
RGB	rgb(64, 62, 157)
HSL	hsl(241, 43%, 43%)
HSV	hsv(241, 61%, 62%)
CMYK	cmyk(59.2%, 60.5%, 0%, 38.4%)
CIE-LAB	lab(31.74, 29.66, -51.65)
CIE-LCH	lch(31.74, 59.56, 299.87°)
OKLab	oklab(42.36% 0.0229 -0.1484)
OKLCH	oklch(42.36% 0.15 278.8)
XYZ	xyz(9.9208, 6.9689, 32.7141)
Luminance	0.0697 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.76

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403E9D #9B9D3E

analogous

#3E6B9D #403E9D #6F3E9D

triadic

#403E9D #9D403E #3E9D40

tetradic

#403E9D #9D3E6B #9B9D3E #3E9D6F

square

#403E9D #9D3E6B #9B9D3E #3E9D6F

split-complementary

#403E9D #9D6F3E #6B9D3E

monochromatic

#1C1B45 #2E2D71 #403E9D #5C5ABE #8886CF

Accessibility & contrast

On white

8.77

#403E9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#403E9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403E9D

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403E9D	#FFFFFF	#000000	##FFFFFF
##403E9D	1.00	8.77	2.39	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA0

Deuteranopia (green-blind)

#00479B

Tritanopia (blue-blind)

#015567

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #403e9d;
/* rgb */ color: rgb(64, 62, 157);
/* oklch */ color: oklch(42.4% 0.150 278.8);

Tailwind

colors: {
  custom: {
    50: '#7e73bb',
    500: '#403e9d',
    950: '#000000',
  },
}

SCSS

$custom: #403e9d;
$custom-light: #7e73bb;
$custom-dark: #000000;

JSON

{
  "hex": "#403e9d",
  "rgb": {
    "r": 64,
    "g": 62,
    "b": 157
  },
  "hsl": {
    "h": 241.263,
    "s": 43.379,
    "l": 42.941
  },
  "oklch": {
    "l": 0.42359,
    "c": 0.15012,
    "h": 278.8
  },
  "luminance": 0.0697
}

Semantic roles & 50–950 ramp

primary

#403E9D

secondary

#B8BA7D

accent

#D355D0

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #403E9D

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

Preview Lab → · Contrast checker → · Palette generator →