#403E87#403E87

#403E87 is a dark, moderate blue. Relative luminance 0.063; OKLCH L 40.6% C 0.119 H 281.0°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#403E87
RGB	rgb(64, 62, 135)
HSL	hsl(242, 37%, 39%)
HSV	hsv(242, 54%, 53%)
CMYK	cmyk(52.6%, 54.1%, 0%, 47.1%)
CIE-LAB	lab(30.12, 22.23, -40.79)
CIE-LCH	lch(30.12, 46.45, 298.59°)
OKLab	oklab(40.64% 0.0226 -0.1164)
OKLCH	oklch(40.64% 0.119 281)
XYZ	xyz(8.2088, 6.2840, 23.6974)
Luminance	0.0629 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403E87 #85873E

analogous

#3E6087 #403E87 #643E87

triadic

#403E87 #87403E #3E8740

tetradic

#403E87 #873E60 #85873E #3E8764

square

#403E87 #873E60 #85873E #3E8764

split-complementary

#403E87 #87643E #60873E

monochromatic

#181733 #2C2B5D #403E87 #5552B0 #7E7CC3

Accessibility & contrast

On white

9.30

#403E87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#403E87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403E87

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403E87	#FFFFFF	#000000	##FFFFFF
##403E87	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184A8A

Deuteranopia (green-blind)

#104485

Tritanopia (blue-blind)

#244E5C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #403e87;
/* rgb */ color: rgb(64, 62, 135);
/* oklch */ color: oklch(40.6% 0.119 281.0);

Tailwind

colors: {
  custom: {
    50: '#7a73aa',
    500: '#403e87',
    950: '#000000',
  },
}

SCSS

$custom: #403e87;
$custom-light: #7a73aa;
$custom-dark: #000000;

JSON

{
  "hex": "#403e87",
  "rgb": {
    "r": 64,
    "g": 62,
    "b": 135
  },
  "hsl": {
    "h": 241.644,
    "s": 37.056,
    "l": 38.627
  },
  "oklch": {
    "l": 0.40644,
    "c": 0.11857,
    "h": 281
  },
  "luminance": 0.06285
}

Semantic roles & 50–950 ramp

primary

#403E87

secondary

#ACAD74

accent

#CD5BCA

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #403E87

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

Preview Lab → · Contrast checker → · Palette generator →