#403E91#403E91

#403E91 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.4% C 0.133 H 279.9°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#403E91
RGB	rgb(64, 62, 145)
HSL	hsl(241, 40%, 41%)
HSV	hsv(241, 57%, 57%)
CMYK	cmyk(55.9%, 57.2%, 0%, 43.1%)
CIE-LAB	lab(30.83, 25.59, -45.81)
CIE-LCH	lch(30.83, 52.47, 299.19°)
OKLab	oklab(41.4% 0.023 -0.1312)
OKLCH	oklch(41.4% 0.133 279.9)
XYZ	xyz(8.9462, 6.5790, 27.5810)
Luminance	0.0658 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403E91 #8F913E

analogous

#3E6591 #403E91 #693E91

triadic

#403E91 #91403E #3E9140

tetradic

#403E91 #913E65 #8F913E #3E9169

square

#403E91 #913E65 #8F913E #3E9169

split-complementary

#403E91 #91693E #65913E

monochromatic

#1A193B #2D2C66 #403E91 #5856B7 #8280C9

Accessibility & contrast

On white

9.07

#403E91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#403E91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403E91

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403E91	#FFFFFF	#000000	##FFFFFF
##403E91	1.00	9.07	2.32	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#024C94

Deuteranopia (green-blind)

#00458F

Tritanopia (blue-blind)

#1A5161

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #403e91;
/* rgb */ color: rgb(64, 62, 145);
/* oklch */ color: oklch(41.4% 0.133 279.9);

Tailwind

colors: {
  custom: {
    50: '#7c73b2',
    500: '#403e91',
    950: '#000000',
  },
}

SCSS

$custom: #403e91;
$custom-light: #7c73b2;
$custom-dark: #000000;

JSON

{
  "hex": "#403e91",
  "rgb": {
    "r": 64,
    "g": 62,
    "b": 145
  },
  "hsl": {
    "h": 241.446,
    "s": 40.097,
    "l": 40.588
  },
  "oklch": {
    "l": 0.414,
    "c": 0.13317,
    "h": 279.9
  },
  "luminance": 0.0658
}

Semantic roles & 50–950 ramp

primary

#403E91

secondary

#B2B378

accent

#D058CD

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #403E91

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

Preview Lab → · Contrast checker → · Palette generator →