#403C90#403C90

#403C90 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.9% C 0.135 H 280.8°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#403C90
RGB	rgb(64, 60, 144)
HSL	hsl(243, 41%, 40%)
HSV	hsv(243, 58%, 56%)
CMYK	cmyk(55.6%, 58.3%, 0%, 43.5%)
CIE-LAB	lab(30.24, 26.56, -46.14)
CIE-LCH	lch(30.24, 53.24, 299.92°)
OKLab	oklab(40.94% 0.0252 -0.1322)
OKLCH	oklch(40.94% 0.135 280.8)
XYZ	xyz(8.7627, 6.3348, 27.1411)
Luminance	0.0634 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403C90 #8C903C

analogous

#3C6290 #403C90 #6A3C90

triadic

#403C90 #90403C #3C9040

tetradic

#403C90 #903C62 #8C903C #3C906A

square

#403C90 #903C62 #8C903C #3C906A

split-complementary

#403C90 #906A3C #62903C

monochromatic

#1A183A #2D2A65 #403C90 #5752B7 #817DC9

Accessibility & contrast

On white

9.26

#403C90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#403C90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403C90

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403C90	#FFFFFF	#000000	##FFFFFF
##403C90	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A93

Deuteranopia (green-blind)

#00448E

Tritanopia (blue-blind)

#1B5060

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #403c90;
/* rgb */ color: rgb(64, 60, 144);
/* oklch */ color: oklch(40.9% 0.135 280.8);

Tailwind

colors: {
  custom: {
    50: '#7c72b1',
    500: '#403c90',
    950: '#000000',
  },
}

SCSS

$custom: #403c90;
$custom-light: #7c72b1;
$custom-dark: #000000;

JSON

{
  "hex": "#403c90",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 144
  },
  "hsl": {
    "h": 242.857,
    "s": 41.176,
    "l": 40
  },
  "oklch": {
    "l": 0.40941,
    "c": 0.13455,
    "h": 280.8
  },
  "luminance": 0.06335
}

Semantic roles & 50–950 ramp

primary

#403C90

secondary

#B0B375

accent

#D157CB

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #403C90

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

Preview Lab → · Contrast checker → · Palette generator →