#403C81#403C81

#403C81 is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.8% C 0.113 H 282.6°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#403C81
RGB	rgb(64, 60, 129)
HSL	hsl(243, 37%, 37%)
HSV	hsv(243, 53%, 51%)
CMYK	cmyk(50.4%, 53.5%, 0%, 49.4%)
CIE-LAB	lab(29.17, 21.55, -38.57)
CIE-LCH	lch(29.17, 44.19, 299.19°)
OKLab	oklab(39.81% 0.0246 -0.1099)
OKLCH	oklch(39.81% 0.113 282.6)
XYZ	xyz(7.6915, 5.9063, 21.4994)
Luminance	0.0591 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403C81 #7D813C

analogous

#3C5B81 #403C81 #633C81

triadic

#403C81 #81403C #3C8140

tetradic

#403C81 #813C5B #7D813C #3C8163

square

#403C81 #813C5B #7D813C #3C8163

split-complementary

#403C81 #81633C #5B813C

monochromatic

#17152D #2B2957 #403C81 #554FAB #7C77C0

Accessibility & contrast

On white

9.63

#403C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#403C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403C81

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403C81	#FFFFFF	#000000	##FFFFFF
##403C81	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4783

Deuteranopia (green-blind)

#15427F

Tritanopia (blue-blind)

#284B58

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #403c81;
/* rgb */ color: rgb(64, 60, 129);
/* oklch */ color: oklch(39.8% 0.113 282.6);

Tailwind

colors: {
  custom: {
    50: '#7a71a6',
    500: '#403c81',
    950: '#000000',
  },
}

SCSS

$custom: #403c81;
$custom-light: #7a71a6;
$custom-dark: #000000;

JSON

{
  "hex": "#403c81",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 129
  },
  "hsl": {
    "h": 243.478,
    "s": 36.508,
    "l": 37.059
  },
  "oklch": {
    "l": 0.39806,
    "c": 0.11263,
    "h": 282.6
  },
  "luminance": 0.05907
}

Semantic roles & 50–950 ramp

primary

#403C81

secondary

#A6AA6F

accent

#CD5BC6

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#09070F

muted

#7B7A7F

Preview Lab

Preview with #403C81

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

Preview Lab → · Contrast checker → · Palette generator →